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R&S®UPV-K7 User Manual

1. 11 Unless expressly permitted never remove the cover or any part of the housing while the product is in operation Doing so will expose circuits and components and can lead to injuries fire or damage to the product 12 If a product is to be permanently installed the connection between the PE terminal on site and the product s PE conductor must be made first before any other connection is made The product may be installed and connected only by a licensed electrician 13 For permanently installed equipment without built in fuses circuit breakers or similar protective devices the supply circuit must be fused in such a way that anyone who has access to the product as well as the product itself is adequately protected from injury or damage 1171 0000 42 05 00 Page 3 14 15 16 17 18 Basic Safety Instructions Use suitable overvoltage protection to ensure that no overvoltage such as that caused by a bolt of lightning can reach the product Otherwise the person operating the product will be exposed to the danger of an electric shock Any object that is not designed to be placed in the openings of the housing must not be used for this purpose Doing so can cause short circuits inside the product and or electric shocks fire or injuries Unless specified otherwise products are not liquid proof see also section Operating states and operating positions item 1 Therefore the equipment must be protected again
2. 2 5 1000 60 0 05 5 1000 90 0 05 8 true Explanation Supply voltage provided at ANLG AUX OUT Overrides the general setting O V means use voltage from general setting Start level of sweep dBSPL or dB re 1 mA m Stop level of sweep dBSPL or dB re 1 mA m Number of level steps in sweep Number of sweeps with frequency as parameter Pre delay between generator setting and measurement trigger allows for settling of the DUT e g AGC False Acoustic input True Inductive input 0 means don t check Number of discrete measured values Value triples specifying measurements and upper limits Stipulates whether limits are checked in discrete measurements Table 8 Available parameters for battery current measurements The following standard conformal tests are based on the battery current measurement routine Battery Current ANSI Battery Current ECO Battery Current IEC 7 45 1401 9353 12 03 Acoustic Measurements on Hearing Aids Speech Test according to IEC 60118 15 This test requires option key UPV K71 Prerequisite is valid ISTS calibration data Purpose of the test is the characterisation of fitted hearing aids using a speech like signal The International Speech Test Signal ISTS has been composed from segments shorter than 500 ms taken from recordings with 21 female speakers in six different languages American English Arabic Chinese French Ger
3. Low level of sine burst dBSPL or dB re 1 mA m Duration of high level Period duration of sine burst True Signal filtered with one octave width around test tone frequency False Acoustic input True Inductive input False Only values are stored in the database saves disk space True compressed curve is stored in the database False Sound pressure on Y axis True SPL on Y axis Settling time is determined as the time after which the curve approaches the steady value closer than this difference Lower limit of high settling time for limit check Upper limit of high settling time for limit check Settling time is determined as the time after which the curve approaches the steady value closer than this difference Lower limit of low settling time for limit check Upper limit of low settling time for limit check Stipulates whether limits of settling times are checked Table 5 Available parameters for dynamic behaviour measurements 39 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids Measurement of Input Output Characteristics Input Output Characteristics Generic Of x SPL dB 1 l 5 z 1 l 1 1 2 7582 10 20 30 40 50 60 70 80 90 100 110 120 127 24 Input Level dB Z 500 Hz 4GC Threshold 84 46 dBSPL Compression Ratio 1 74 Z 2000 Hz AGC Threshold 69 34 dBSPL Compression Ratio 5 49 Z 1000 Hz AGC Threshold 75 80 dBSPL Compressio
4. upper frequency limit Hz number of frequencies display result in dB number of sweeps sweep 1 level dB sweep 2 level dB sweep 3 level dB measurement delay s induction show thd show 2nd show 3rd show 4th show 5th show 6th show 7th show 8th show 9th check limit for sweep no number of discrete points point 1 Hz dB limit point 2 Hz dB limit point 3 Hz dB limit check limits Type Double Double Double Integer Boolean Parameter count Double Double Double Double Boolean Boolean Boolean Boolean Boolean Boolean Boolean Boolean Boolean Boolean Byte Parameter count String String String Boolean Value 0 200 5000 57 false 60 80 100 0 01 false true true true false false false false false false 3 500 70 1 800 70 0 5 1600 65 0 5 true Explanation Supply voltage provided at ANLG AUX OUT Overrides the general setting 0 V means use voltage from general setting Start frequency of sweep Stop frequency of sweep Number of sweep points False Y axis and values in True Y axis and values in dB Number of sweeps with level as parameter dBSPL or dB re 1 mA m dBSPL or dB re 1 mA m dBSPL or dB re 1 mA m Pre delay between sweep Step and measurement trigger allows for settling of the DUT e g AGC False Acoustic input True Inductive input Stipu
5. closed the main window of the R amp S UPV K7 opens 1401 9353 12 03 11 E 3 1401 9353 12 03 Hearing Aid Tests File Data Calibration Measurement Standards Config Meas Sequence Report Options Help Test Results O vermew Select Date and Time VZ NEC 711 Substit Sample Hearing Aid 1 Repeat last Report last measurement measurement Fig 7 Main window after first start of the program Acoustic Measurements on Hearing Aids E Et vo ng Initially the data grid in the centre of the screen which shows the result overview is empty The screenshot below shows an example after a number of measurements have been made Hearing Aid Tests File Data Calibration Measurement Standards Config Meas Sequence Report Options Help Test Results 0 vermew Select Date and Time 07 02 2010 14 46 50 a 07 02 2010 14 47 30 07 02 2010 14 48 21 a 07 02 2010 14 49 02 NN 07 02 2010 14 49 21 lOO 07 02 2010 14 49 46 B 07 02 2010 14 50 05 lO 07 02 2010 14 50 23 Ss 07 02 2010 14 50 58 lOO 07 02 2010 14 51 25 07 02 2010 14 51 53 Les 07 02 2010 15 10 38 07 02 2010 15 11 25 lO 07 02 2010 15 12 23 gt BBD 07 02 2010 15 13 01 W 07 02 2010 15 23 58 07 02 2010 15 24 15 07 02 2010 15 25 21 07 02 2010 15 25 37 e 07 02 2010 15 26 01 07 02 2010 15 26 23 GE 07 02 2010 15 26 39 lt lt 07 02 2010 15 26 48 lO 07 02 2010 15 26 52 TR 07 02 2010 15
6. measured and taken into account in the final equalization file as fine correction 21 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids To verify the results the absolute sound pressure versus frequency is measured at the specified sound pressure level Correct calibration without interfering sound yields an almost straight line Calibration of the International Speech Test Signal ISTS This item is only available with option R amp S UPV K71 installed _ _____Q__ Fie Data Calibration Measurement Standards Config Meas Seguer TN v Selective Microphone easurement Title TA Ear Simulator PLO ANSI oe Pistonphone ference Test Setting ANSI Sound Source EA AI Speech Test Signal I5T5 at 55 dB SPL 9 Induction Coil at 65 dB SPL pi Current Sense Resistor at 80 dB SPL mE w UPY Calibration Info at 65 and 80 de SPL New Device at 55 65 and 80 dB SPL Select Device at other level Show Selected Devices equency Response Induction A l l EN Dan IE C D Show all values Fig 20 Submenu for ISTS calibration The calibration function performs the following actions on the ISTS e Pre filtering the speech signal with the inverse frequency response of the sound source valid sound source calibration is prerequisite e Level alignment of the filtered signal e Analysis of the longterm average spectrum and percentile spectra at the reference
7. 12 03 Contents 7 Automatic Test Sequences cccooccccccccccnccncnccocnoconnnnanconnnnnnnnnnannonannonaninos 53 Creating and Editing a Sequence occoocccccncocccocccocnnocnnonnconnnonncnanonanos 53 Opening an Existing Sequence ocooccccccccocncocncocococococnnncncooncnononanonanos 54 Using a Sample SEQUENCE ccccssceceeeeceeeceseeceueeceueeceeeeeeessueess 54 RUNNING A SEQUENCE cocooccccnccccccncconccncnoconnnnnnonancnnnnonannnnnnnonannonaninanons 54 Running a Single Measurement within a Sequence aannannannaana 55 Reporting on Sequence Results oocccoccccoccccccnconcncconononnnononos 55 8 Reporting Storing Loading and Deleting Results 56 RESUL EE 56 A A 56 Generating a Single Report 56 Generating a Sequence Report 57 Configuring the Landscape Report ocooccncncnccccnccncnccncnconcncnononnnnnnnonos 57 Generating a Landscape Hepnort 58 Selection Report ia ia idas 59 Configuring the One Page Henort 59 Generating a One Page Henort 60 PLE WIN Was oirlo 62 Storing and Loading Cunves EE 63 Deleting RESUS EE 63 Automatic Backup and Restoration of the Results File 64 9 Terminating the Appltcaton 65 4 E 3 Basic Safety Instructions Always read through and comply with the following safety instructions All plants and locations of the Rohde amp Schwarz group of companies make every effort to keep the safety standards of our products
8. 9353 12 03 65 E 3
9. Double 20 Magnetic field strength for inductive input SPL for acoustic input level scale maximum dBSPL Double 80 Initial upper end of the graphic display level scale minimum dBSPL Double 30 Initial lower end of the graphic display Table 11 Available parameters for magnetic field alignment 92 E 3 Acoustic Measurements on Hearing Aids 7 Automatic Test Sequences 1401 9353 12 03 gt Hearing Aid Tests File Data Calibration Measurement Standards Config Meas Sequence Report Options He Ne Test Results O vernew NS Select Date and Time Measurement Title OPEN OF 02 2010 14 46 50 OSPL9O IEC 7 Insert sample sequence Fig 49 Sequence menu Creating and Editing a Sequence The menu item Sequence gt New first produces a window where a name for the new sequence has to be entered Subsequently the sequence window opens Hearing Aid Tests O x File Data Calibration Measurement Standards Config Meas Sequence Report Options Help Append gt wi OSPLIO IEC 0 OSPL390 IEC 0 Reference Test Setting IEC 0 Saturation SPL IEC 0 Editband Append gt Field of Frequency Response Curves IEC 0 Full On Gain 60 dB IEC 0 Input Output Characteristics IEC 2 Full On Gain 50 dB IEC 0 Dynamic Behaviour at Speech Level IEC 2 Reference Test Setting IEC 0 copy Edit and App Move dawn Ss Harmon
10. Results File In order to speed up the execution of sequences the result file is only saved when the program is closed However backups of the result file called xml 1 and xml 2 are stored alternately after termination of each single measurement and after termination of each sequence stands for the name of the results file without extension If the program is ended without closing it properly or if the result file is not existing anymore the R amp S UPV K7 will by the time of its next start offer to restore the result file from the latest backup file fh Newer Backup File Found Ela The last session of This program has ended prematurely Not all results have been saved Last writing time of results file bn 1 2007 4 12 11 PM Last writing time of backup Tile bn 22007 9 40 08 AM Would you like to backup the contents of the results Tile and restore the contents of the backup file No keep results file Yes restore backup Tile E Fig 61 Restoration of data from backup file If it is chosen to restore the result file from the backup the supposedly damaged result file is copied do xml 3 before the backup file is copied to the original name of the results file 64 E 3 Acoustic Measurements on Hearing Aids 9 Terminating the Application The measurement can be terminated from the main window with the Exit softkey This causes the result file to be written to the hard disk 1401
11. Sample Hearing Aid 1 Sample Hearing Aid 1 Sample Hearing Aid 1 ed eel bt sd ACLs 4 300 Verdi Comment PASS FAIL PASS FAIL PASS FAIL PASS PASS PASS PASS FAIL PASS PASS FAIL PASS FAIL PASS FAIL PASS PASS PASS FAIL PASS PASS PASS Mano Ir Acoustic Measurements on Hearing Aids 3 Operating Concept 1401 9353 12 03 Options General settings Options Help Continuous Current Measurement Measurement Frequency Range High Pass Rumble Filter Low Pass Hiss Noise Filter w Adaptive Measurement Function Settling Standard w Select Standard at Startup Ear Simulator Select Ear Simulator at Startup Ambient Conditions e Query Ambient Conditions at Startup Test Method Microphone Location MLE IEC 60118 15 w Use Coupler Mic as Reference Mic w Show Operator Instructions Delay before closing a measurement in a sequence vw Store Results of Further Measurements Store Loaded Curve Data to Results Battery Voltage Report Settings Fig 9 Options menu The Options menu in the main window allows to change a set of general settings like ear simulator test method and battery voltage which are valid for all or at least a plurality of the tests Continuous current measurement allows to measure the supply current at analyzer input 2 This option can only be selected with the substitution method The value of the shunt resistor for the current measurement can be entered in the ca
12. always memorized and displayed as suggestion for the next instance of the report Generating a One Page Report One page reports are available for standards IEC 60118 0 1 2 IEC 60118 7 and ANSI S3 22 They can be generated for the test object selected in Data gt Test object gt Select or for the test object selected in Report gt Select by Object Furthermore a one page report can be generated from a sequence by inserting a respective control item at the end of the sequence To assemble a one page report the report generator looks for the latest results for the selected test object with certain test names as listed below If the one page report is generated from a sequence however it uses only results obtained during the latest run of this sequence IEC 60118 0 1 2 IEC 60118 7 ANSI S3 22 UN OSPL90 IEC 0 OSPL90 IEC 7 OSPL90 ANSI Field of Frequency Frequency Response Frequency Response Response Curves IEC 7 ANSI ECO Frequency Response Frequency Response Frequency Response Induction IEC 1 Induction IEC 7 Induction ANSI Or Freq Resp Induction 10 mA m IEC 1 Or Freq Resp Induction 31 6 mA m IEC 1 Response Curve Output SPL at Output SPL at Max Gain Induction Maximum Gain Maximum Gain ES Multi Curve Multi Curve Multi Curve Equivalent Input Noise Equivalent Input Noise Equivalent Input ECO IEC 7 Noise ANSI 7 Harmonic Distortion Harmonic Distortion Harmonic D
13. clicking into the results overview and selecting Save Curve of Marked Row as If the result contains more than one result the user can select which curve is to be stored or alternatively choose to store all measured curves into a common file The file format can be tab separated txt or comma separated csv csv files can be directly opened in spreadsheet applications like MS Excel by double clicking the file Tab separated text files can also be imported into spreadsheets Deleting Results It may be desirable to delete results of selected measurements from the result file e g because the measurement was repeated due to the hearing aid being switched off a wrong setting etc To delete the result of a particular measurement mark the row for the selected measurement in the data grid of the main window by clicking on the row header to the left right click into the data grid and select Delete result from the context menu After confirmation by the operator the selected row of the result overview will be deleted from the result file together with all associated data except data also associated with other measurement results A set of results may be selected in the Select column of the results data grid and commonly deleted using the context menu item Report Selection gt Delete Selected Results 63 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids Automatic Backup and Restoration of the
14. l 1000 Frequency Hz BY tuo 60 de BY 2na50 de BY oeoa BY THD 80 de Rana BM rd 80 de BB tHo 100 de BM 20100 ds BY ara 100 de No Standard IEC 126 Substitution other 1 5 Display dB Sieg Lee M Mes Save Curve As Load Curve stele is As Create Report Fig 36 Curve display of harmonic distortion measurement The softkey Display dB or Display respectively allows to toggle between both Y axis units The softkey Show Discrete Values or Show Curves respectively allows to toggle between curve display and result data table provided that discrete values or curves respectively have been measured Harmonic Distortion Generic E JD x Result Data Frequency Level THD THD limit THD verdict 2nd 3rd 4th 5th 6th gt 500 70 5 349432468 1 Fail 5 25617 0 896504 0 211765 0143414 0 153519 800 70 0 340588867 0 5 Pass 0 111137 0 311144 0 0728366 0 0282066 0 024844 1600 65 0 838577806 0 5 Fail 0 818163 0 18274 0 0114115 0 00845126 o0 00748032 al No Standard IEC 126 Substitution other 1 5 Display dB M SE Save Curve 4s Load Curve SE As Create Report Close Fig 37 Data table display of harmonic distortion measurement b 36 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids The following table lists all available parameters in the generic frequency response measurement Name battery voltage V lower frequency limit Hz
15. o transportarlo con precauci n y si es necesario usando un sistema de elevaci n adecuado p ej una carretilla elevadora a fin de evitar lesiones en la espalda u otros da os personales Las asas instaladas en los productos sirven solamente de ayuda para el transporte del producto por personas Por eso no est permitido utilizar las asas para la sujeci n en o sobre medios de transporte como p ej gr as carretillas elevadoras de horquilla carros etc Es responsabilidad suya fijar los productos de manera segura a los medios de transporte o elevaci n Para evitar da os personales o da os en el producto siga las instrucciones de seguridad del fabricante del medio de transporte o elevaci n utilizado Si se utiliza el producto dentro de un veh culo recae de manera exclusiva en el conductor la responsabilidad de conducir el veh culo de manera segura y adecuada El fabricante no asumir ninguna responsabilidad por accidentes o colisiones No utilice nunca el producto dentro de un veh culo en movimiento si esto pudiera distraer al conductor Asegure el producto dentro del veh culo debidamente para evitar en caso de un accidente lesiones u otra clase de da os Eliminaci n 1 Si se trabaja de manera mec nica y o t rmica cualquier producto o componente m s all del funcionamiento previsto pueden liberarse sustancias peligrosas polvos con contenido de metales pesados como p ej plomo berilio o n quel Por eso el producto s
16. pressure level frequency responses output SPL over input SPL harmonic distortion battery current drain and AGC settling Audio Analyzer R amp S UPV with option R amp S UPV K7 provides a test system which together with the necessary acoustic accessories allows measurements according to IEC60118 0 1983 IEC60118 1 1995 IEC60118 2 1983 IEC60118 7 2005 and ANSI S3 22 2003 In addition to standard measurements it is possible to create own tests by customizing the available parameters With additional option R amp S UPV K71 tests according to IEC60118 15 using speech signal can be performed Automatic test sequences can be compiled from the available tests and results are compiled for subsequent creation of test reports Acoustic Measurements on Hearing Aids 2 Preparation and Start of the Application Software 1401 9353 12 03 Required Measuring Instruments and Accessories The Audio Analyzer R amp S UPV with option R amp S UPV K7 is required for the measurements Acoustic devices such as measurement couplers a calibrator and other accessories are required for the measurements The following equipment from Bruel Kjaer or G R A S may be used Device Hearing aid test box Measurement microphone Low noise measurement microphone IEC 126 coupler Description Anechoic box with built in sound source and induction loop feed throughs for the most important connection lines 4 measurement microphone for m
17. selection window for the standard is opened at each start of the program Ear simulator allows to select the type of ear simulator used For details on the handling of calibration data see section 4 Calibration below lf Select ear simulator at startup is checked the selection window for the ear simulator is opened at each start of the program 15 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids Ambient conditions allows to change the temperature relative humidity and atmospheric pressure values for the protocol Query ambient conditions at startup causes the input window for the ambient condition to be opened at each start of the program Test method allows to select the test method for transfer measurements With Substitution the nominally set SPL at the input of the hearing aid is assumed to be correct due to the calibration of the sound source With Comparison the input SPL is measured simultaneously with the output SPL by the reference microphone in a two channel measurement and results are corrected for the deviation of the input SPL from the nominal value Comparison can not be selected when the continuous current measurement is active or when the coupler microphone is used as reference microphone see below Microphone Location MLE IEC 60118 15 allows to specify the location of the hearing aid The respective frequency correction location effe
18. up to date and to offer our customers the highest possible degree of safety Our products and the auxiliary equipment they require are designed built and tested in accordance with the safety standards that apply in each case Compliance with these standards is continuously monitored by our quality assurance system The product described here has been designed built and tested in accordance with the attached EC Certificate of Conformity and has left the manufacturer s plant in a condition fully complying with safety standards To maintain this condition and to ensure safe operation you must observe all instructions and warnings provided in this manual If you have any questions regarding these safety instructions the Rohde Schwarz group of companies will be happy to answer them Furthermore it is your responsibility to use the product in an appropriate manner This product is designed for use solely in industrial and laboratory environments or if expressly permitted also in the field and must not be used in any way that may cause personal injury or property damage You are responsible if the product is used for any intention other than its designated purpose or in disregard of the manufacturer s instructions The manufacturer shall assume no responsibility for such use of the product The product is used for its designated purpose if it is used in accordance with its product documentation and within its performance limits see data sheet documen
19. 0 3000 400050006000 80000000 Frequency Hz RB 50 dBSPL HFA 96 96 dBSPL Max 103 41 dBSPL Z 30 dB mA m HFA 97 16 dBSPL Max 103 49 dBSPL BR 60 dBSPL HFA 101 97 dBSPL Max 106 67 dBSPL BR 20 dB mA m HFA 88 11 dBSPL Max 95 95 dBSPL IEC 711 Substitution Sample Hearing Aid 1 1 3 Wide Band Display Gain Calculate HFA M G Save Curve As Load Curve Baier As Create Report Fig 33 Display window of multi curve measurement The multi curve measurement is found in Standards gt Utilities It is similar to frequency response measurements and allows measurement and display of acoustic and inductive frequency responses in one window Unlike other measurements the multi curve measurement does not automatically start a sweep when it opens All sweeps are started by the user using the Add Measurement button even within sequences Therefore this window does not close automatically within a sequence but has to be closed using the Done button 1401 9353 12 03 32 E 3 Acoustic Measurements on Hearing Aids The following table lists all available parameters available for configuration of the multi curve measurement Name Type Value Explanation battery voltage V Double 0 Supply voltage provided at ANLG AUX OUT Overrides the general setting O V means use voltage from general setting lower frequency limit Hz Double 200 Start frequency of sweep upper frequency limit Hz Double 5
20. 000 Stop frequency of sweep number of frequencies Integer 57 Number of sweep points display result as gain Boolean false True Gain on Y axis False SPL on Y axis selective measurement Boolean false True Selective measurement with fast 3rd octave filter measurement predelay s Double 0 02 Pre delay between sweep Step and measurement trigger allows for settling of the DUT e g AGC number of HFA frequencies Parameter count 3 Number of frequencies averaged in the high frequency average HFA frequency 1 Hz Double 1000 HFA frequency Hz Double 1600 HFA frequency Hz Double 2500 HFA upper limit dB Double 30 Upper limit for limit check HFA lower limit dB Double 10 Lower limit for limit check Determine maximum gain Boolean True Stipulates whether the absolute curve maximum should be determined Show operator instruction Boolean True Determines whether the operator should be prompted to switch the hearing aid between microphone and telecoil mode Selective acoustic Boolean False Activates selective measurement measurement for acoustic input only Selective induction Boolean True Activates selective measurement measurement for inductione input only Table 2 Available parameters for multi curve measurements When the Add Measurement button is clicked an entry window for the level of the next sweep opens The input to the hearing aid can be switched between acoustic and inductive signal For acou
21. 06 Source Default Induction Coil Default Curr Meas Res Default Setting max Gain Setting ref Gain Setting Telecoil 110 7 dB 2634Hz 109 2 dB 2634 Hz 97 4 dB 3146 Hz 103 4 dB 102 7 d 90 8 dB 48 8 dB 2753 Hz 37 0 dB 3146 Hz 56 4 dB 2878 Hz 37 2 dB 3146 Hz 50 7 dB 28 8 dB 3 2 0 9 5 5 0 9 a H Field of Frequency Response Curves lEC 0 130 OSPL max Gain 90 60 50 dB Frequency Response Induction IEC 1 1904 OSPL Telecoil 31 6 mA m 13 OSPL ref Gain 50 60 70 80 90 dB Dynamic Behaviour ot Speech Level EC 2 14 Input Output Function 500 1000 2000 Hz 110 r E _ _ a 100 SNE A a E H ATA ART i EH 04 E Nl a i l ee ral ES pi L 6 KZ TA LF D gt an gt d 5 140 Dynamic AGC resp 2000 Hz 55 gt 80 gt 55 dB Fig 57 Data sources for one page report refer to table 11 61 E 3 Acoustic Measurements on Hearing Aids Preview Window Report Ol x 1 ENDHse eze o O MainRepott Tested 1 11 2007 4 52 54 PM Print Date 1 11 2 Operator Rohde amp Schwarz Device Under Test Name other Type Standard Manufacturer Audiology Inc Serial Number 23498576 AGC No Comment This is my comment AA A A FATI Current Page No 1 Total Page No 1 Zoom Factor 100 Fig 58 Report preview window The main area of the preview windo
22. 26 59 ae See LY a El a Ms PE SNE 5 ES Measurement Title OSPL9O IEC Fun Gain IEC 7 Reference Test Setting IEC 7 Frequency Response IEC 7 Input Output Characteristics IEC 7 Dynamic Behaviour IEC Harmonic Distortion UEC Battery Current IEC Equivalent Input Noise IEC Frequency Response Induction IEC Output SPL at Maximum Gain Induction IEC Full On Gain IEC 7 Frequency Response IEC 7 OSPL9O IEC 0 OSPL9O IEC 0 OSPL9O IEC 0 Reference Test Setting IEC 0 OSPL9O ECO Reference Test Setting IEC 0 Field of Frequency Response Curves lEC 0 Input Output Characteristics IEC 2 Dynamic Behaviour at Speech Level IEC 2 Harmonic Distortion IEC 0 Battery Current IEC 0 SE d SE IR 0 AE a H oT a A el 2 NEC 711 Substitu Sample Hearing Aid 1 Repeat last Report last T Repeat last pecs Measurement measurement SEQuente Fig 8 Main window with results 12 Test Object Sample Hearing Aid 1 Sample Hearing Aid 1 Sample Hearing Aid 1 Sample Hearing Aid 1 Sample Hearing Aid 1 Sample Hearing Aid 1 Sample Hearing Aid 1 Sample Hearing Aid 1 Sample Hearing Aid 1 Sample Hearing Aid 1 Sample Hearing Aid 1 Sample Hearing Aid 1 Sample Hearing Aid 1 Sample Hearing Aid 1 Sample Hearing Aid 1 Sample Hearing Aid 1 Sample Hearing Aid 1 Sample Hearing Aid 1 Sample Hearing Aid 1 Sample Hearing Aid 1 Sample Hearing Aid 1 Sample Hearing Aid 1
23. 50 14001 zertifiziertes Umweltmanagementsystem Dear Customer You have decided to buy a Rohde Schwarz product You are thus assured of receiving a product that is manufactured using the most modern methods available This product was developed manufactured and tested in compliance with our quality management system stan dards The Rohde amp Schwarz quality management system Is certified according to standards such as ISO 9001 and ISO 14001 Environmental commitment 1 Energy efficient products 1 Continuous improvement in environmental sustainability 1150 14001 certified environmental management system Certified Quality System ISO 9001 Certified Environmental System ISO 14001 Cher client Vous avez choisi d acheter un pro duit Rohde 4 Schwarz Vous disposez donc d un produit fabriqu d apres les m thodes les plus avanc es Le d ve loppement la fabrication et les tests respectent nos normes de gestion qualit Le systeme de gestion qualit de Rohde 4 Schwarz a t homologu entre autres conform ment aux nor mes ISO 9001 et ISO 14001 Engagement cologique 1 Produits a efficience nerg tique 1 Am lioration continue de la durabilit environnementale Syst me de gestion de l environne ment certifi selon ISO 14001 1171 0200 11 V 04 01 Customer Support Technical support where and when you need it For quick expert help with any Rohde amp Schwarz equipment contact o
24. 5588 3 GIE Fe Bele Ep S FOO Loudspeaker Cable i Telecoil Cable S eseji i II DOi Microphone Power Supply in out Coupler Cable Bas p Battery Adaptor Cable Fig 1 Test setup and connection of external components The following cables are required to connect speaker induction loop and battery voltage supply of the test box delivered with R amp S UPL B7 to the R amp S UPV The microphone signal from the microphone power supply may be connected to the analyzer input with a BNC cable and a R amp S UPL Z1 adapter If a custom made BNC to XLR cable is used it should be made following the schematics of the R amp S UPL Z1 adapter see R amp S UPV manual chapter Configuring the Analog Analyzer E 3 Acoustic Measurements on Hearing Aids XLR female A open ends 3 2 1 gt EH mg Loudspeaker Cable XLR female S EE 6 3 mm mono jack male 2 d E IS mg Telecoil Cable XLR male 3 5 mm stereo jack male 3 D pe JH 2 1 D l Ge SE Se s T WE R2 O A muaa y E D 4 diodes 1N4007 or similar 1A forward current _ R1 resistor 2 Ohm 1 BNC male R2 2 resistors 1 Ohm 1 Battery Adaptor Cable Fig 2 Connection cables for R amp S UPL B7 Interacoustics TBS 25 test box T
25. Acoustic Measurements on Hearing Aids Create Report for Marked Row zal Create Landscape Report For Marked Row Only For Frequency Response Results er Delete Marked Row Save Curve of Marked Row as BCC Report Selection Report Selected Results e Select all 14 51 25 Frequency Response Induction UE d Sample Hearing Ald 1 EE EEN 14 51 53 Output SPL at Maximum Gain Induction IEC Sample Hearing Aid 1 lar tarea auf 15 10 38 kukn Gain EL d Sample Hearing Aid 1 Fig 53 Results context menu Subsequently data associated with the selected measurement is assembled a graph for existing curve data is generated and the preview window is opened Depending on the amount of measurement data this may take a few seconds Generating a Sequence Report A report on a sequence of measurements can be generated from the sequence window by clicking or pressing the softkey Report sequence Once the sequence window has been closed a report on the last executed sequence can be generated by selecting Report gt Last sequence from the main menu Reports about previous sequences can be generated as single reports on the measurements of this sequence as all results appear in the overview data grid in the main window Configuring the Landscape Report Menu item Report gt One Page Report Settings opens the following input window Landscape Report Settings Style Black and White Curve Identification Legend Label Axis Sc
26. For Estimated Insertion Gain the open ear gain given in IEC 60118 8 2005 is subtracted from the gain result and correction values for the difference between open ear sensitivity and 2cc coupler results are added to the output level values Usually multiple graphs result from one test run e Gain calculated from the long term average speech spectra LTASS gain at different speech levels e Gain calculated from selected sections for certain percentiles Speech gain one graph for each speech level e lf the delay is determined for each third octave band separately the delay can also be plotted over frequency All graphs are contained within a tab control where the tabs on top allow to switch between the graphs The softkeys buttons on bottom of the window are context sensitive as far as applicable 46 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids gt IEC 60118 15 EIG 55 65 80 dBSPL Abs ioj x LTASS 55 desPL 65dBSPL 80 dBSPL Speech Gain dB 1 1 l 1 1 l l 1 1 1 1 l l 100 200 300 400 500 600 800 1000 2000 3000 4000 50006000 8000 10000 Frequency Hz BS Gain e so dBSPL 30 EY Gain 80 dBSPL 65 BN Gain 80 desPL 99 yl LTASS Gain 80 dBSPL IEC 126 BTE Test Hearing Aid 1 y Normalize fi Ate q M a Save Curve As Load Curve gei ee As Create Report Close Fig 44 Display of speech test The Play Output Signal button allows to listen to the o
27. K7 Software on the installation CD supplied with the R amp S UPV K7 option It is recommended to copy the files MCRInstaller exe UPV K7_12011 msi Config ini dotnetfx exe Setup Exe and Settings Ini from the folder UPV K7 Software on the installation CD to drive D on the R amp S UPV hard disk drive e g to a folder named D R amp S Software UPV K7 Version 1 2 0 Run the file Setup Exe to start the installation Follow the instructions of the installer on the screen Run installer MCRInstaller exe to install the Matlab runtime for option UPV K71 Hearing aids tests using speech like signals Verification of Installation After the installation has terminated a folder C Program Files Rohde amp Schwarz UPV K7 Hearing Aid tests must have been created It must contain 30 files plus a folder Data which in turn must contain 150 files and a folder Sequences with sub folders ANSI_S3 22 1EC60118 0 1 2 and IEC60118 7 Upon first startup the application program creates the folder D Hearing After the program has been exited without any further action this folder must contain 152 files If the software reports a missing key code at the first start delete folder DiHearing if existing and install the missing key code before starting the software again 1401 9353 12 03 T E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids Test Setup ANLG AUX OUT SCE 5
28. La interrupci n puede tener como consecuencia el riesgo de que el producto sea fuente de choques el ctricos Si se utilizan cables alargadores o regletas de enchufe deber garantizarse la realizaci n de un examen regular de los mismos en cuanto a su estado t cnico de seguridad Si el producto no est equipado con un interruptor para desconectarlo de la red se deber considerar el enchufe del cable de conexi n como interruptor En estos casos se deber asegurar que el enchufe siempre sea de f cil acceso de acuerdo con la longitud del cable de conexi n aproximadamente 2 m Los interruptores de funci n o electr nicos no son aptos para el corte de la red el ctrica Si los productos sin interruptor est n integrados en bastidores o instalaciones se deber colocar el interruptor en el nivel de la instalaci n No utilice nunca el producto si est da ado el cable de conexi n a red Compruebe regularmente el correcto estado de los cables de conexi n a red Aseg rese mediante las medidas de protecci n y de instalaci n adecuadas de que el cable de conexi n a red no pueda ser da ado o de que nadie pueda ser da ado por l p ej al tropezar o por un choque el ctrico Solamente est permitido el funcionamiento en redes de alimentaci n TN TT aseguradas con fusibles de 16 A como m ximo utilizaci n de fusibles de mayor amperaje solo previa consulta con el grupo de empresas Rohde amp Schwarz Nunca conecte el enchufe en tom
29. Operating Manual paran Fang A Software for Hearing Aids Tests R amp S UPV K7 1401 9301 02 Version 1 2 0 11 Printed in Germany ROHDE amp SCHWARZ Test and Measurement 1401 9353 12 03 1 Dear Customer R amp S is a registered trademark of Rohde amp Schwarz GmbH amp Co KG Trade names are trademarks of the owners 1401 9353 12 03 2 Contents 1401 9353 12 03 Contents Safety Instructions Certificate of Quality Support Center Address 1 ERY GW STR 5 2 Preparation and Start of the Application Software scenes 6 Required Measuring Instruments and Accessories cooccocccocccnncoco 6 Installing the Software ce eccccccceececeeeeseeeeseeeeaeeeseeeeseeeeseeeeseeesaeeees 7 Verification of Installation o cooccconcconnconncocnconnccnnconnccononanononos 7 TOSPSCI Dramatic T 8 Starting the Application Software annannannnannnnnnnnnnnnnnnnsnnnnnnnennne 10 3 Operating Concept 13 Options General settings cccccsecceceececeeceeeeeceseeeeeseeeeeeeeeesees 13 AA o il OO 17 Calibration DEVICES uscar encia 17 Microphone Calibration cccccccccccsececeeeeseeeaeeeeeeeeseeseseeeeaeeesaeeees 19 Calibration of Ear Simulator IEC 1 20 Entering correction values for Pistonphones cccccccccccnconcncncnnnnonos 20 Calibration Of Sound Gource occoccccccccocccocncocnnocononnnonnnonnnnnncnononononanos 21 Calibration of the International Speech Test Signa
30. Type Value Explanation battery voltage V Double 1 5 Supply voltage provided at ANLG AUX OUT Overrides the general setting O V means use voltage from general setting lower frequency limit Hz Double 200 Start frequency of sweep upper frequency limit Hz Double 8000 Stop frequency of sweep number of frequencies Integer 65 Number of sweep points lowest input level dB Double 60 Start level of sweep dBSPL or dB re 1 mA m highest input level dB Double 90 Stop level of sweep dBSPL or dB re 1 mA m number of levels Integer 31 Number of level steps in sweep selective measurement Boolean false True Selective measurement with fast 3rd octave filter measurement delay s Double 0 02 Pre delay between sweep Step and measurement trigger allows for settling of the DUT e g AGC inductive Boolean false False Acoustic input True Inductive input display curve maximum Boolean True Stipulates whether the absolute curve maximum should be determined lower limit of max dB Double 130 upper limit of max dB Double 150 check max limits Boolean true Stipulates whether pass fail check takes place Table 3 Available parameters for saturation SPL measurements The only standard conformal test based on the saturation SPL measurement routine is Saturation SPL IEC 0 35 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids Harmonic Distortion Measurement Harmonic Distortion Generic
31. UT e g AGC False Acoustic input True Inductive input Number of frequencies averaged in the high frequency average Upper limit for limit check Lower limit for limit check 0 means don t check 0 means dont calculate Level difference between HFA level and frequency response limit points Determines whether the frequency range is checked against the limits given below Stipulates whether the absolute curve maximum should be determined 0 means don t check Table 1 Available parameters for frequency response measurements 31 E 3 Acoustic Measurements on Hearing Aids If for example only an upper limit should be checked but not the corresponding lower one select the lower limit low enough to be always passed The following standard conformal tests are based on the frequency response measurement routine Frequency Response 60 dBSPL IEC 0 Frequency Response ANSI Field of Frequency Response Curves IEC 0 Frequency Response IEC 7 Frequency Response Induction ANSI Frequency Response Induction IEC 1 Full On Gain 50 dB IEC 0 Full On Gain 60 dB IEC 0 Full On Gain IEC 7 Response Curve at Maximum Gain IEC 1 Full On Gain ANSI Output SPL at Maximum Gain Induction IEC 1 OSPL90 ANSI OSPL90 IEC 7 OSPL 90 IEC 0 Multi Curve Measurement gt Multi Curve Output Level dBSPL l TER 1 l 1 l 1 Fc l 1 300 400 500600 98001000 200
32. able for providing disconnection from the AC supply network If products without power switches are integrated into racks or systems a disconnecting device must be provided at the system level 5 Never use the product if the power cable is damaged Check the power cable on a regular basis to ensure that it is in proper operating condition By taking appropriate safety measures and carefully laying the power cable you can ensure that the cable will not be damaged and that no one can be hurt by for example tripping over the cable or suffering an electric shock 6 The product may be operated only from TN TT supply networks fused with max 16 A higher fuse only after consulting with the Rohde amp Schwarz group of companies 7 Do not insert the plug into sockets that are dusty or dirty Insert the plug firmly and all the way into the socket Otherwise sparks that result in fire and or injuries may occur 8 Do not overload any sockets extension cords or connector strips doing so can cause fire or electric shocks 9 For measurements in circuits with voltages Vims gt 30 V suitable measures e g appropriate measuring equipment fusing current limiting electrical separation insulation should be taken to avoid any hazards 10 Ensure that the connections with information technology equipment e g PCs or other industrial computers comply with the IEC60950 1 EN60950 1 or IEC61010 1 EN 61010 1 standards that apply in each case
33. alibration of the IEC 711 ear simulator an adaptor part must be screwed onto the simulator which allows it to be inserted into the calibrator like a microphone The calibration routine is started with Calibration gt Ear Simulator gt IEC 711 and follows the course described above Entering correction values for Pistonphones With the menu Item Pistonphone in the Calibration menu volume and atmospheric correction values can be viewed and edited In addition the default nominal level and calibration frequency for pistonphone use can be modified Volume correction values are specific to the different microphone or coupler types and can therefore be entered separately The atmospheric correction value is common to all microphones and ear simulators 20 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids Pistonphone Correction Values Default Values Mominal Level 124 0 db Frequency 250 044 Hz Volume Correction IEC 11 Coupler 020 de Coupler Microphone pay dE Reference Microphone DEES Atmospheric Correction All Microphones 0 30 db Cancel Fig 19 Input window pistonphone correction values C Calibration of Sound Source Before a hearing aid can be tested the absolute sensitivity and frequency response of the sound source have to be measured and corrected with the aid of a previously calibrated reference microphone If Use coupler mic as reference mic is activ
34. aling Chart Type Level we Frequency Aspect Ratio Frequency Level Response sasaa pere m Ais mo Left 100 00 Right 1000 00 e Print Information on Test and Object bh Add Lines at 1600 Hz and 2500 Hz Scale Chart Size by 1 00 ea THT oe Fig 54 Data entry window for settings of the landscape report 57 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids Style allows to choose between black and white and Color output Curve Identification specifies how to include the parameter Values for the curves in a legend below the graph in a label inside the graph area or not at all Axis Scaling can be configured for each combination of x axis unit and y axis unit separately Standard means automatic scaling to achieve the y axis to x axis ratio defined in IEC 60118 0 Define enables the input fields below In the X Axis and Y Axis fields the scaling of each axis can be defined for the specified combination of axis units Auto uses the scaling from the result dataset Define enables the controls for the maximum and minimum values The checkbox Print Information on Test and Object enables inclusion of the measurement title and information about the tested hearing aid and about the operator Add Lines at 1600 Hz and 2500 Hz enables inclusion of auxiliary vertical lines at these frequencies provided that th
35. almacenar las celdas o bater as en estuches o cajones en cuyo interior puedan cortocircuitarse por contacto rec proco o por contacto con otros materiales conductores No deben extraerse las celdas o bater as de sus embalajes originales hasta el momento en que vayan a utilizarse Mantener bater as y celdas fuera del alcance de los ni os En caso de ingesti n de una celda o bater a avisar inmediatamente a un m dico Las celdas o bater as no deben someterse a impactos mec nicos fuertes indebidos 1171 0000 42 05 00 Page 11 Informaciones elementales de seguridad 6 En caso de falta de estanqueidad de una celda el l quido vertido no debe entrar en contacto con la piel ni los ojos Si se produce contacto lavar con agua abundante la zona afectada y avisar a un m dico En caso de cambio o recarga inadecuados las celdas o bater as que contienen electrolitos alcalinos p ej las celdas de litio pueden explotar Para garantizar la seguridad del producto las celdas o bater as solo deben ser sustituidas por el tipo Rohde amp Schwarz correspondiente ver lista de recambios Las bater as y celdas deben reciclarse y no deben tirarse a la basura dom stica Las bater as o acumuladores que contienen plomo mercurio o cadmio deben tratarse como residuos especiales Respete en esta relaci n las normas nacionales de eliminaci n y reciclaje Transporte 1 El producto puede tener un peso elevado Por eso es necesario desplazarlo
36. as de corriente sucias o llenas de polvo Introduzca el enchufe por completo y fuertemente en la toma de corriente La no observaci n de estas medidas puede provocar chispas fuego y o lesiones No sobrecargue las tomas de corriente los cables alargadores o las regletas de enchufe ya que esto podr a causar fuego o choques el ctricos En las mediciones en circuitos de corriente con una tensi n Ue gt 30 V se deber n tomar las medidas apropiadas para impedir cualquier peligro p ej medios de medici n adecuados seguros limitaci n de tensi n corte protector aislamiento etc Para la conexi n con dispositivos inform ticos como un PC o un ordenador industrial debe comprobarse que stos cumplan los est ndares IEC60950 1 EN60950 1 o IEC61010 1 EN 61010 1 v lidos en cada caso A menos que est permitido expresamente no retire nunca la tapa ni componentes de la carcasa mientras el producto est en servicio Esto pone a descubierto los cables y componentes el ctricos y puede causar lesiones fuego o da os en el producto 1171 0000 42 05 00 Page 9 12 13 14 15 16 17 18 Informaciones elementales de seguridad Si un producto se instala en un lugar fijo se deber primero conectar el conductor de protecci n fijo con el conductor de protecci n del producto antes de hacer cualquier otra conexi n La instalaci n y la conexi n deber n ser efectuadas por un electricista especializado En el caso de d
37. ated from a measured value of 10 mA m or 31 6 mA m by subtracting 20 dB or 30 dB respectively In Frequency Response at Ref Gain it can be chosen whether the second diagram shows output sound pressure level values or gain values In Curve Identification it is possible to choose between legends below the respective graph advantageous with color plots and labels inside the graphs compatible with printouts from the UPL B7 application program HEARPRO The scaling of each graph can be configured in the Axis Scaling field The diagram is chosen with the numeric entry control and the textbox besides shows the title of the chosen graph Autoscaling optimizes the size of the curves while preserving the aspect ratio between the axes 10 dB on 99 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids Y axis equals 10 dB on X axis for input output curves and 50 dB on Y axis equals 1 logarithmic frequency decade on the x axis for frequency response graphs like specified in IEC 60118 0 section 8 and in IEC 60263 Checkboxes Edit Comment Edit Serial Edit Equipment cause the respective information to be displayed for editing during generation of the report If Memorize Serial is checked the serial number is not taken from the information about the selected test object but can be entered during generation of the report To ease entry of consecutive serial numbers the last entered number is
38. ated in the Options menu the microphone of the IEC 126 coupler can be used for this purpose The frequency response of the microphone can be ignored in the test frequency range 100 Hz to 10 kHz see also calibration certificate of microphone capsule If a separate reference microphone is used this has to be calibrated beforehand with Calibration gt Microphone gt Reference After starting the sound source calibration with Calibration gt Sound Source the calibration level can be defined This allows to adapt the calibration to specific measurement levels It is also possible to store calibrations for different levels using multiple calibration devices see above The sound pressure generated at the point of the reference microphone is set to exactly the specified level in an automatic measurement routine at 1 kHz The generator voltage required is stored in a file on the hard disk and used as a reference for all subsequent settings with the same sound source If the sound pressure cannot be adjusted to the specified value an error message is displayed with a request to check the connection to the sound source and to repeat the measurement The uncorrected frequency response of the sound source is measured and displayed Next the frequency response is measured with the inverse frequency response correction automatically selected in the generator equalization Residual errors caused by nonlinearities of the speaker are
39. ce between input open and input sealed check off Boolean True True Repeat noise measurement with hearing aid Switched off min level difference dB Double 10 Minimum acceptable noise difference between hearing aid switched of and hearing aid switched on with input open maximum noise level GBSPL Double 40 Maximum noise level for pass fail check check limits Boolean True Stipulates whether limit should be checked display spectrum Boolean True True Noise spectrum is measured with a sweep of a fast 3 octave filter lower frequency Hz Double 200 Lowest 3 octave center frequency upper frequency Hz Double 5000 Highest 3 octave center frequency number of frequencies Double 15 Number of 3 octaves measured must match the number of 3 octaves including the lowest and highest one Table 7 Available parameters for equivalent input noise measurements The following standard conformal tests are based on the measurement routine for equivalent input noise Equivalent Input Noise ANSI Equivalent Input Noise 1 3 oct IEC 0 Equivalent Input Noise IEC 7 43 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids Battery Current Measurement Battery Current Generic oxi r ZS e D 2 o CH Di co 60 Input Level dB BE 500 He BY 1000 H2 BM 2000 Hz No Standard IEC 711 Comparison Sample Hearing Aid 1 1 3 I Show Discrete Add Save Curve As ee Save Curve 4s L
40. chived together with other project data and re opened later for generating reports It is recommended to keep result files small and to generate backups at frequent intervals b Hearing Aid Tests Fie Data Calibration P Open results File Save results Save results as Mew results File Load settings Save settings Save settings as Exit Fig 52 File menu A new empty result file can be created with File gt New Result File from the main menu An existing result file can be opened with File gt Open Result File from the main menu A currently opened result file can be stored under a new name with File gt Save results as from the main menu Report Settings With Report gt Settings or Options gt Report settings a selection can be made of data which should appear in the reports Thus information which is the same for a larger number of measurements does not have to be printed with every report again Generating a Single Report A report on a single measurement result can be generated from the window of a measurement macro by clicking or pressing the softkey Generate report From the result overview of the main window a report on a single measurement can be generated by marking the row with the selected result by clicking on the row header to the left right clicking into the data grid and selecting Generate report from the context menu 96 E 3 1401 9353 12 03
41. ct according IEC 60118 8 is taken into account for speech tests according to IEC 60118 15 None No location effect is taken into account BTE Location effect for hearing aids worn behind the ear ITE Location effect for hearing aids worn inside the concha ITC Location effect for hearing aids inserted into the ear canal ClC Location effect for hearing aids which are worn completely inside the ear canal Use coupler mic as reference mic allows to use the microphone of the IEC 126 coupler for sound source calibration In this case the program applies the calibration value of the coupler microphone for the sound source calibration and the reference microphone has to be connected to analyzer input 1 instead of analyzer input 2 If Show operator instructions is checked instructions to the operator are displayed in a message box before the measurement starts The operator may be prompted to position the hearing aid in a defined way or to set the volume to a certain setting In Menu item Delay before closing a measurement in a sequence a time period can be defined for which the result of a completed measurement is shown during execution of a sequence before the measurement window is closed and the next measurement in the sequence is started Store results of further measurements allows to include results obtained with the Add measurement softkey to the result database All curves obtained this
42. current Direct alternating Device fully protected by voltage indication DC AC current DC AC double reinforced insulation 1171 0000 42 05 00 Page 1 Basic Safety Instructions Tags and their meaning The following signal words are used in the product documentation in order to warn the reader about risks and dangers indicates a hazardous situation which if not avoided will result in death or A DANGER serious injury A WARNING indicates a hazardous situation which if not avoided could result in death or serious injury indicates a hazardous situation which if not avoided could result in minor or moderate injury indicates the possibility of incorrect operation which can result in damage to NOTICE the product In the product documentation the word ATTENTION is used synonymously These tags are in accordance with the standard definition for civil applications in the European Economic Area Definitions that deviate from the standard definition may also exist in other economic areas or military applications It is therefore essential to make sure that the tags described here are always used only in connection with the related product documentation and the related product The use of tags in connection with unrelated products or documentation can result in misinterpretation and in personal injury or material damage Operating states and operating positions The product may be operated only under the operatin
43. desmontaje del producto debe tenerse en cuenta imprescindiblemente el cap tulo Eliminaci n punto 1 1171 0000 42 05 00 Page 10 5 Informaciones elementales de seguridad Ciertos productos como p ej las instalaciones de radiocomunicaci n RF pueden a causa de su funci n natural emitir una radiaci n electromagn tica aumentada Deben tomarse todas las medidas necesarias para la protecci n de las mujeres embarazadas Tambi n las personas con marcapasos pueden correr peligro a causa de la radiaci n electromagn tica El empresario operador tiene la obligaci n de evaluar y se alizar las reas de trabajo en las que exista un riesgo elevado de exposici n a radiaciones Tenga en cuenta que en caso de incendio pueden desprenderse del producto sustancias t xicas gases l quidos etc que pueden generar da os a la salud Por eso en caso de incendio deben usarse medidas adecuadas como p ej m scaras antig s e indumentaria de protecci n En caso de que un producto Rohde Schwarz contenga un producto l ser p ej un lector de CD DVD no debe usarse ninguna otra configuraci n o funci n aparte de las descritas en la documentaci n del producto a fin de evitar lesiones p ej debidas a irradiaci n l ser Reparaci n y mantenimiento 1 El producto solamente debe ser abierto por personal especializado con autorizaci n para ello Antes de manipular el producto o abrirlo es obligatorio desconectarlo de la tensi n d
44. e alimentaci n para evitar toda posibilidad de choque el ctrico El ajuste el cambio de partes el mantenimiento y la reparaci n deber n ser efectuadas solamente por electricistas autorizados por Rohde amp Schwarz Si se reponen partes con importancia para los aspectos de seguridad p ej el enchufe los transformadores o los fusibles solamente podr n ser sustituidos por partes originales Despu s de cada cambio de partes relevantes para la seguridad deber realizarse un control de seguridad control a primera vista control del conductor de protecci n medici n de resistencia de aislamiento medici n de la corriente de fuga control de funcionamiento Con esto queda garantizada la seguridad del producto Bater as y acumuladores o celdas Si no se siguen o se siguen de modo insuficiente las indicaciones en cuanto a las bater as y acumuladores o celdas pueden producirse explosiones incendios y o lesiones graves con posible consecuencia de muerte El manejo de bater as y acumuladores con electrolitos alcalinos p ej celdas de litio debe seguir el est ndar EN 62133 1 2 No deben desmontarse abrirse ni triturarse las celdas Las celdas o bater as no deben someterse a calor ni fuego Debe evitarse el almacenamiento a la luz directa del sol Las celdas y bater as deben mantenerse limpias y secas Limpiar las conexiones sucias con un pa o seco y limpio Las celdas o bater as no deben cortocircuitarse Es peligroso
45. e designed exclusively to enable personnel to transport the product It is therefore not permissible to use handles to fasten the product to or on transport equipment such as cranes fork lifts wagons etc The user is responsible for securely fastening the products to or on the means of transport or lifting Observe the safety regulations of the manufacturer of the means of transport or lifting Noncompliance can result in personal injury or material damage 3 If you use the product in a vehicle it is the sole responsibility of the driver to drive the vehicle safely and properly The manufacturer assumes no responsibility for accidents or collisions Never use the product in a moving vehicle if doing so could distract the driver of the vehicle Adequately secure the product in the vehicle to prevent injuries or other damage in the event of an accident Waste disposal 1 If products or their components are mechanically and or thermally processed in a manner that goes beyond their intended use hazardous substances heavy metal dust such as lead beryllium nickel may be released For this reason the product may only be disassembled by specially trained personnel Improper disassembly may be hazardous to your health National waste disposal regulations must be observed 2 If handling the product releases hazardous substances or fuels that must be disposed of in a special way e g coolants or engine oils that must be replenished regularly the saf
46. e entered and edited which will appear in the report about the respective measurement Creating a Report The softkey Create Report causes a report to be prepared The report preview window see below opens and shows the preview of the report Buttons in the preview window allow to print the report or to export it to PDF WORD EXCEL or Rich Text format For details see section Preview Window below Generating a Landscape Report Landscape reports are only available for frequency response graphs They show the result graph together with the measurement title and information about the tested hearing aid and about the operator The layout and scale is fixed and cannot be configured A landscape report can be generated from the measurement window by right clicking into the result graph of a frequency response measurement and selecting Create Landscape Report from the context menu Closing the Measurement Window The softkey Close closes the measurement window The control is returned to the R amp S UPV K7 main window All relevant data associated with the measurement is imported to the results database A new entry appears for the measurement as new row on the bottom of the overview data grid in the main window 2 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids Customizing Measurements The first item in the Measurement menu which is called Settings opens a sub menu with all available
47. e is 124 dBPL If the calibration values are deactivated the default is 93 98 dBSPL If selective calibration is activated in the calibration menu the frequency of the calibration signal has to be entered 19 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids Calibration Frequency Hz 1000 D0 Cancel dh Fig 18 Input window for calibration frequency If correction values for pistonphone are used the default for the calibration frequency is 250 Hz Otherwise the default calibration frequency is 1000 Hz Subsequently the output voltage of the microphone is measured and the sensitivity displayed with reference to 1 Pa If a mere power supply without gain is used the displayed sensitivity must approximately match the value in the calibration certificate of the microphone capsule typical value for microphone capsule 4134 of artificial ear 4185 is approx 12 mV Pa display 120 mV Pa If a conditioning amplifier with 20 dB gain recommended value is used the displayed sensitivity must be about 10 times higher If the voltage measured is below 3mV or instable an error message is displayed Possible error sources are for example a switched off microphone power supply or a disabled calibrator In this case the program requests that the calibration is repeated After switching on the microphone power supply wait approx 20 s before starting the calibration again Calibration of Ear Simulator IEC 711 For c
48. e modo distinto al indicado en la documentaci n del producto pueden causarse lesiones o incluso la muerte Gei No ponga el producto sobre aparatos que generen calor p ej radiadores o calefactores La temperatura ambiente no debe superar la temperatura m xima especificada en la documentaci n del producto o en la hoja de datos En caso de sobrecalentamiento del producto pueden producirse choques el ctricos incendios y o lesiones graves con posible consecuencia de muerte 1171 0000 42 05 00 Page 8 Informaciones elementales de seguridad Seguridad el ctrica Si no se siguen o se siguen de modo insuficiente las indicaciones del fabricante en cuanto a seguridad el ctrica pueden producirse choques el ctricos incendios y o lesiones graves con posible consecuencia de muerte 1 10 11 Antes de la puesta en marcha del producto se deber comprobar siempre que la tensi n preseleccionada en el producto coincida con la de la red de alimentaci n el ctrica Si es necesario modificar el ajuste de tensi n tambi n se deber n cambiar en caso dado los fusibles correspondientes del producto Los productos de la clase de protecci n con alimentaci n m vil y enchufe individual solamente podr n enchufarse a tomas de corriente con contacto de seguridad y con conductor de protecci n conectado Queda prohibida la interrupci n intencionada del conductor de protecci n tanto en la toma de corriente como en el mismo producto
49. e x axis unit is frequency Furthermore the chart size can be scaled between 0 5 and 1 2 Information text is included only with scale factors up to 1 0 A scale factor of 1 2 causes the graph to fill the whole A4 landscape page Generating a Landscape Report A landscape report shows the result graph on an A4 landscape page A landscape report can be generated from the measurement window by right clicking into the result graph of a frequency response measurement and selecting Create Landscape Report from the context menu Furthermore a Landscape report can be created from the results overview data grid in the main window by marking a row in the results overview by clicking into the row header right clicking into the results data grid and selecting Create Landscape Report for Marked Row Multi Curve Hearing Aid Test Hearing Aid 1 Serial No 0815 4711 Manufacturer Hearing Damage Inc Tested by Thomas Lechner Comment Time 07 26 2010 15 15 37 Rohde amp Schwarz Audio Analyzer UPV 60 dBSPL 90 dBSPL 20 dB mA m 30 dB mA m A F e e 20 i 51 428 100 200 300 400 500 700 1000 2000 3000 40005000 7000 10000 19445 Frequency Hz Fig 55 Sample landscape report 58 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids Selection Report A report on a selection of measurements can be generated from the results overview data grid in the main window by marking the rows with the desired re
50. each other or where they can be short circuited by other conductive materials Cells and batteries must not be removed from their original packaging until they are ready to be used Keep cells and batteries out of the hands of children If a cell or a battery has been swallowed seek medical aid immediately Cells and batteries must not be exposed to any mechanical shocks that are stronger than permitted If a cell develops a leak the fluid must not be allowed to come into contact with the skin or eyes If contact occurs wash the affected area with plenty of water and seek medical aid Improperly replacing or charging cells or batteries that contain alkaline electrolytes e g lithium cells can cause explosions Replace cells or batteries only with the matching Rohde amp Schwarz type see parts list in order to ensure the safety of the product Cells and batteries must be recycled and kept separate from residual waste Rechargeable batteries and normal batteries that contain lead mercury or cadmium are hazardous waste Observe the national regulations regarding waste disposal and recycling Transport 1 The product may be very heavy Therefore the product must be handled with care In some cases the user may require a suitable means of lifting or moving the product e g with a lift truck to avoid back or other physical injuries 1171 0000 42 05 00 Page 5 Informaciones elementales de seguridad 2 Handles on the products ar
51. easurement of artificial mouth output during calibration to be inserted into IEC 126 2cc coupler and for comparison measurement Y measurement microphone with high sensitivity and low self noise for speech tests according to IEC 60118 15 Acoustic coupler according to IEC 126 Type examples R amp S UPL B7 or Interacoustics TBS25 or B amp K 4232 B amp K 4938 with B amp K 2670 or G R A S 4OBP with G R A S 26AC G R A S 40AP with G R A S 26AC and right angled adapter RA0001 Part of R amp S UPL B7 with internal microphone or with Jl microphone with preamplifier G R A S RA0038 IEC 126 coupler for 7 Acoustic coupler according to microphone IEC 126 for use with Y microphone IEC 711 ear simulator IEC 711 type occluded ear simulator B amp K 4157 8 2669 or optional with adapters for calibration and G R A S RA0045 connection to the output of the DUT with 1 2 preamplifier Sound level calibrator or B8K 4231 or pistonphone for calibrating the G R A S 42AB measuring microphones Acoustic calibrator Microphone power supply Power supply and preamplifier for B amp K 2829 5935L or the measuring microphone 2690A0S2 or G R A S 12AD or 12AA Note With the amplifier set to 0 dB the microphone power supply B amp K 2690A0S2 produces too much noise for measuring idle noise and distortion It is therefore advisable to set a gain of 20 dB Theoretically the reference microphone for sou
52. ect Standard none IEC 118 0 1 2 IEC 115 7 IEC 118 15 ANSI 53 22 Ac orl standard measurements Do not show this dialog again Cancel e Fig 4 Query window for selection of applied standard If none is selected in the standard selection window all measurements appear in the Measurement menu If a standard is selected all measurements appear in the Measurement menu but compliant measurements are checked in the menu If Allow only standard measurements is checked non compliant measurements are suppressed in the Measurement menu 10 E 3 Acoustic Measurements on Hearing Aids Select Ear Simulator IEC 126 IEC 711 Do not show this dialog again Cancel Ok Fig 5 Query window for selection of ear simulator When the checkbox Do not show this dialog again is checked the corresponding selection window will not appear at the program start in future However the selection is still available in the Options menu see below The next window to open is the input window for the ambient conditions temperature relative humidity and atmospheric pressure Ambient Conditions Temperature 0 0 E sl Relative humidity 00 Atmospheric pressure 0 0 kPa a ca CSL i Fig 6 Query window for input of ambient conditions The units can be switched between C and F and between kPa and mmHg respectively After the last of the three selection windows has been
53. el producto de la alimentaci n de tensi n p ej red de alimentaci n o bater a Realice la limpieza de los aparatos con un pa o suave que no se deshilache No utilice bajo ning n concepto productos de limpieza qu micos como alcohol acetona o diluyentes para lacas nitrocelul sicas Funcionamiento 1 2 3 4 El uso del producto requiere instrucciones especiales y una alta concentracion durante el manejo Debe asegurarse que las personas que manejen el producto est n a la altura de los requerimientos necesarios en cuanto a aptitudes f sicas ps quicas y emocionales ya que de otra manera no se pueden excluir lesiones o da os de objetos El empresario u operador es responsable de seleccionar el personal usuario apto para el manejo del producto Antes de desplazar o transportar el producto lea y tenga en cuenta el cap tulo Transporte Como con todo producto de fabricaci n industrial no puede quedar excluida en general la posibilidad de que se produzcan alergias provocadas por algunos materiales empleados los llamados al rgenos p ej el n quel Si durante el manejo de productos Rohde amp Schwarz se producen reacciones al rgicas como p ej irritaciones cut neas estornudos continuos enrojecimiento de la conjuntiva o dificultades respiratorias debe avisarse inmediatamente a un m dico para investigar las causas y evitar cualquier molestia o da o a la salud Antes de la manipulaci n mec nica y o t rmica o el
54. ely to determine the cause and to prevent health problems or stress Before you start processing the product mechanically and or thermally or before you take it apart be sure to read and pay special attention to the section titled Waste disposal item 1 Depending on the function certain products such as RF radio equipment can produce an elevated level of electromagnetic radiation Considering that unborn babies require increased protection pregnant women must be protected by appropriate measures Persons with pacemakers may also be exposed to risks from electromagnetic radiation The employer operator must evaluate workplaces where there is a special risk of exposure to radiation and if necessary take measures to avert the potential danger Should a fire occur the product may release hazardous substances gases fluids etc that can cause health problems Therefore suitable measures must be taken e g protective masks and protective clothing must be worn If a laser product e g a CD DVD drive is integrated into a Rohde amp Schwarz product absolutely no other settings or functions may be used as described in the product documentation The objective is to prevent personal injury e g due to laser beams 1171 0000 42 05 00 Page 4 Basic Safety Instructions Repair and service 1 The product may be opened only by authorized specially trained personnel Before any work is performed on the product or before the product is
55. etaciones equivocadas y tener por consecuencia da os en personas u objetos Estados operativos y posiciones de funcionamiento El producto solamente debe ser utilizado seg n lo indicado por el fabricante respecto a los estados operativos y posiciones de funcionamiento sin que se obstruya la ventilaci n Si no se siguen las indicaciones del fabricante pueden producirse choques el ctricos incendios y o lesiones graves con posible consecuencia de muerte En todos los trabajos deber n ser tenidas en cuenta las normas nacionales y locales de seguridad del trabajo y de prevenci n de accidentes 1 Sino se convino de otra manera es para los productos Rohde amp Schwarz v lido lo que sigue como posici n de funcionamiento se define por principio la posici n con el suelo de la caja para abajo modo de protecci n IP 2X grado de suciedad 2 categor a de sobrecarga el ctrica 2 uso solamente en estancias interiores utilizaci n hasta 2000 m sobre el nivel del mar transporte hasta 4500 m sobre el nivel del mar Se aplicar una tolerancia de 10 sobre el voltaje nominal y de 5 sobre la frecuencia nominal N No sit e el producto encima de superficies veh culos estantes o mesas que por sus caracter sticas de peso o de estabilidad no sean aptos para l Siga siempre las instrucciones de instalaci n del fabricante cuando instale y asegure el producto en objetos o estructuras p ej paredes y estantes Si se realiza la instalaci n d
56. ety instructions of the manufacturer of the hazardous substances or fuels and the applicable regional waste disposal regulations must be observed Also observe the relevant safety instructions in the product documentation The improper disposal of hazardous substances or fuels can cause health problems and lead to environmental damage Informaciones elementales de seguridad Es imprescindible leer y observar las siguientes instrucciones e informaciones de seguridad El principio del grupo de empresas Rohde amp Schwarz consiste en tener nuestros productos siempre al d a con los est ndares de seguridad y de ofrecer a nuestros clientes el m ximo grado de seguridad Nuestros productos y todos los equipos adicionales son siempre fabricados y examinados seg n las normas de seguridad vigentes Nuestro sistema de garant a de calidad controla constantemente que sean cumplidas estas normas El presente producto ha sido fabricado y examinado seg n el certificado de conformidad adjunto de la UE y ha salido de nuestra planta en estado impecable seg n los est ndares t cnicos de seguridad Para poder preservar este estado y garantizar un funcionamiento libre de peligros el usuario deber atenerse a todas las indicaciones informaciones de seguridad y notas de alerta El grupo de empresas Rohde amp Schwarz est siempre a su disposici n en caso de que tengan preguntas referentes a estas informaciones de seguridad Adem s queda en la responsabilidad de
57. evel steps Integer 50 Number of level steps in sweep display result as gain Boolean false False Level on the Y axis True Gain on the Y axis selective measurement Boolean False True selective measurement with fast 3 octave filter number of sweeps Parameter count 3 Number of sweeps with frequency as parameter sweep 1 frequency Hz Double 500 sweep 2 frequency Hz Double 1000 sweep 3 frequency Hz Double 2000 measurement delay s Double 0 05 Pre delay between sweep Step and measurement trigger allows for settling of the DUT e g AGC induction Boolean false False Acoustic input True Inductive input calculate values Boolean true True AGC threshold and compression ratio are determined for each curve AGC threshold upper limit Double 80 Upper limit for limit check of dB AGC threshold AGC threshold lower limit Double 60 Lower limit for limit check of dB AGC threshold compression input level 1 Double 80 Lower input level for dB compression ratio calculation dBSPL or dB re 1 mA m compression input levl 2 dB Double 85 Higher input level for compression ratio calculation dBSPL or dB re 1 mA m compression ratio upper limit Double 8 Upper limit for limit check of compression ratio compression ratio lower limit Double 4 Lower limit for limit check of compression ratio check limit for curve no Byte 2 0 means don t check Table 6 Available parameters for input out
58. g conditions and in the positions specified by the manufacturer without the product s ventilation being obstructed If the manufacturer s specifications are not observed this can result in electric shock fire and or serious personal injury or death Applicable local or national safety regulations and rules for the prevention of accidents must be observed in all work performed 1 Unless otherwise specified the following requirements apply to Rohde amp Schwarz products predefined operating position is always with the housing floor facing down IP protection 2X pollution severity 2 overvoltage category 2 use only indoors max operating altitude 2000 m above sea level max transport altitude 4500 m above sea level A tolerance of 10 shall apply to the nominal voltage and 5 to the nominal frequency N Do not place the product on surfaces vehicles cabinets or tables that for reasons of weight or stability are unsuitable for this purpose Always follow the manufacturer s installation instructions when installing the product and fastening it to objects or structures e g walls and shelves An installation that is not carried out as described in the product documentation could result in personal injury or death Ss Do not place the product on heat generating devices such as radiators or fan heaters The ambient temperature must not exceed the maximum temperature specified in the product documentation or in the data sheet Product ove
59. g to ANSI 3 22 They can be used for collecting the data for the one page reports Running a Sequence When the softkey Start sequence is pressed all checked measurements in the right list box are executed in sequence The state of the checkboxes may be altered by marking a measurement and then clicking on the checkbox Each measurement window may be kept open for a time period defined in Options gt Delay before closing a measurement in a sequence This value can also modified on the bottom right corner of the sequence window In addition a screenshot of each terminated measurement is copied to a new tab in the sequence results overview Hearing Aid Tests File Data Calibration Measurement Standards Config Meas Sequence Report Options Help Fail Pass Pass Pass Fail Pass Pass Pass Pass Fail Pass Pass aT nt wo co a K gt D S 3 it E l l 1 50 60 70 Input Level dB SPL Z 500 Hz AGC Threshold 87 69 dBSPL Compression Ratio 1 32 BR 2000 Hz AGC Threshold 67 80 dBSPL Compression Ratio 12 50 Z 1000 Hz AGC Threshold 73 69 dBSPL Compression Ratio 6 34 IEC 118 0 1 2 IEC 711 Substitution Sample Hearing Aid 1 1 300 Y Tig first Stop Eont Repeat last Report Start sequence equence Next Step a Sequence Hide Results Save and close Fig 51 Sequence results window 54 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids The view can be to
60. gain normalize to level dBSPL show speech gain number of percentiles percentage 1 percentage 2 percentage 3 include LTASS gain normalize to LTASS gain Double String Parameter count Double Double Double Boolean Boolean Boolean Boolean Boolean Double Boolean Parameter count Single Single Single Boolean Boolean 45 SELECTED 55 65 80 False False False False True True 30 65 99 True False Table 9 Available parameters for speech tests 48 Length of analyzed time interval which starts after completion of settling time Microphone location effect to be taken into account SELECTED means MLE selected in Options Other values NONE BTE MITES DTC CIC Number of signal levels to be tested Average signal level Average signal level Average signal level Specifies whether the delay should be determined frequency selective Specifies whether frequency dependent delay should be plotted in an extra graph Specifies whether correction values should be applied for 2cc coupler Specifies whether open ear gain values from IEC 60118 8 2005 Annex B should be subtracted from the gain results Specifies whether the LTASS gains should be shown in an own diagram Specifies the LTASS gain curve to which all curves should be normalized 0 means no normalization Specifies whether the percentile gain curve
61. ggled between results and sequence by using the Hide Results Show Results bitton respectively Each tab indicates the verdict Pass or Fail of the respective result If the mouse is hovered into the visible screenshot the tooltip displays the measurement title Alternatively the tabs can also be configured in the context menu to show the titles of the measurements Running a Single Measurement within a Sequence When the softkey Run highlighted is pressed the measurement currently selected in the right checked list box is executed regardless of its checked state Results are added to the result database however the measurement started this way will not appear in the sequence report This allows to use sequences as customized sets of measurements which can be stored and opened later again Reporting on Sequence Results A report on all executed measurements of the last run sequence is prepared and displayed after the Report Sequence softkey has been pressed After the sequence window has been closed a report on the last sequence can be obtained by pressing the Report last sequence softkey in the main window 55 E 3 Acoustic Measurements on Hearing Aids 8 Reporting Storing Loading and Deleting Results 1401 9353 12 03 Result Files Measurement results are stored together with all associated data in XML files Separate files can be used for different projects or operators They can be ar
62. he cables shown in Fig 2 can be ordered as Accessory R amp S UPV Z7 The cables of R amp S UPL B7 can be re used for R amp S UPV K 7 As the supply voltage is now provided by the ANLG AUX OUT on the rear panel of the R amp S UPV the following adapter is required in addition 6 3 mm stereo jack female BNC male sE A SZ Gees Le Fig 3 Adapter cable to connect the R amp S UPL B7 battery supply cable to the ANLG AUX OUT of the R amp S UPV 1401 9353 12 03 9 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids Starting the Application Software After installation the program can be started by double clicking the Icon UPV K7 Hearing Aid Tests or by clicking R amp S UPV Applications gt UPV K7 Hearing Aid Tests in the Programs menu At the fist start of the program selection windows appear for the standard according to which the measurements should be made and for the measurement coupler used The entered selections are stored with the settings and automatically loaded at the next start of the program At each start of the program the ambient conditions temperature relative humidity and atmospheric pressure are queried for protocol purpose The entered values are not stored in the settings because the ambient conditions are supposed to change with time The query can be deselected and values can be changed any time in the Options menu Sel
63. he left mouse button is pressed a rectangle can be marked in the graph As soon as the left mouse button is released the graph is zoomed into the area of the marked rectangle Zoom Out in the graph context menu reverses the last zooming step Unzoom zooms completely out to the original scaling 25 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids Changing the Scale of the Graph Change Scale in the context menu opens a window in which the upper and lower bounds of both axes can be entered by numbers gt Change Scale JIL x Minimurn Masimurn 1 00 00 10000 00 Y Minimum Y Masmum 50 004 0 00 rea P i HA Fig 25 Window for changing the scale of the graph Cursor When the item Show Cursor is marked in the graph context menu a cursor is displayed which can be dragged along the graph with the mouse X and Y values of the data points below the cursor are displayed Fig 26 Cursor with data display Data Point Size Data Point Size in the graph context menu opens a window in which the size of marks at the measured data points can be specified Moving the mouse cursor over one of the marks causes the associated X and Y values to be displayed 8 1000 00 48 05 Fig 27 Data points with data display Making Additional Measurements The softkey Add Measurement triggers another measurement according to the specification of the test Loudness ratings a
64. ic Distortion IEC 0 Frequency Response 60 dBSPL IEC 0 Heide Battery Current IEC 0 Field of Frequency Response Curves lEC 0 Equivalent Input Noise IEC 0 Input Output Characteristics IEC 2 Derry Switch 2 telecoil E f i Adjust induction output to acoustic 60 dBSPL Dynamic Behaviour at High Level IEC 2 Magnetic Field Alignment Dynamic Behaviour at Speech Level IEC 2 Frequency Response Induction IEC 1 Harmonic Distortion UEL UI Edit Parameters Multi Curve Battery Current IEC 0 Gain Adjustment Induction IEC 1 Equivalent Input Noise 1 3 oct IEC 0 Run Highlighted Harmonic Distortion Induction Gain Adjustment Induction IEC 1 wi Create One Page Report for IEC 60118 0 1 2 Freg Resp Induction 31 6 m m IEC 1 Clear Freg Resp Induction 10 m m IEC 1 Harmonic Distortion Induction IEC 1 Check all Response Curve Max Gain Induction IEC 1 IEC 118 7 Uncheck all ANSI 53 22 Generic Save sequence as Utilities Messages and Control Save sequence More Enter Comment Close Close measurement after fo seconds Change Save sequence Save and close 4 IEC 118 0 1 2 IEC 711 Substitution Sample Hearing Aid 1 1 300 Tia first Stop lsont Repeat last Report Measurement Sequence Measurement Sequence Start sequence ext Sten Fig 50 Sequence window Initially the right checked list box is empty The list box on the left side displays all available measurement defini
65. ispositivos fijos que no est n provistos de fusibles interruptor autom tico ni otros mecanismos de seguridad similares el circuito de alimentaci n debe estar protegido de modo que todas las personas que puedan acceder al producto as como el producto mismo est n a salvo de posibles da os Todo producto debe estar protegido contra sobretensi n debida p ej a una ca da del rayo mediante los correspondientes sistemas de protecci n Si no el personal que lo utilice quedar expuesto al peligro de choque el ctrico No debe introducirse en los orificios de la caja del aparato ning n objeto que no est destinado a ello Esto puede producir cortocircuitos en el producto y o puede causar choques el ctricos fuego o lesiones Salvo indicaci n contraria los productos no est n impermeabilizados ver tambi n el cap tulo Estados operativos y posiciones de funcionamiento punto 1 Por eso es necesario tomar las medidas necesarias para evitar la entrada de l quidos En caso contrario existe peligro de choque el ctrico para el usuario o de da os en el producto que tambi n pueden redundar en peligro para las personas No utilice el producto en condiciones en las que pueda producirse o ya se hayan producido condensaciones sobre el producto o en el interior de ste como p ej al desplazarlo de un lugar fr o a otro caliente La entrada de agua aumenta el riesgo de choque el ctrico Antes de la limpieza desconecte por completo
66. istortion ECO IEC 7 ANSI Harmonic Distortion Harmonic Distortion Harmonic Distortion Induction Induction Induction Battery Current Battery Current IEC 7 Battery Current IEC 0 ANSI 60 E 3 IEC 1 Induction IEC 7 Induction ANSI 1401 9353 12 03 Acoustic Measurements on Hearing Aids IEC 60118 0 1 2 Dynamic Behaviour at Speech Level IEC 2 Input Output Characteristics IEC 2 IEC 60118 7 ANSI 3 22 Dynamic Behaviour Dynamic Behaviour IEC 7 ANSI Input Output Characteristics ANSI Input Output Characteristics IEC 7 Table 12 Measurement titles of the data sources for the one page report The following figure illustrates which of the above measurements serves as data source for the respective areas of the one page report Hearing Aid Test UPV K7 Standard IEC60118 0 1 2 Comment Equipment IEC 711 Coupler Default Sound Measurement Results REF 1600 Hz Max OSPL90 OSPL 31 6 mA m ref OSPL90 OSPL 31 6 mA m ref REF Max Gain 60 dB Gain 60 dB REF OSPL 1mA m ref Max Gain 50 dB Gain 50 dB REF Equ Input Noise 60 0 dB THD 500 Hz 70dB 100 0 mA m THD 800 Hz 70dB 100 0 mA m DSPL90 IEC 0 THD 1 600 Hz 70dB 100 0 mA m 0 3 0 1 Batt Current Idle odp 1600 Hz 0 89 mA 9 0 89 mA Attack Release Time 80 dB 55 dB 14 1 ms 1 040 0 ms amp ROHDE amp SCHWARZ Tested by Thomas Lechner Time 07 02 2010 15 30
67. l ISTS 22 5 Data Entry for Reportmg 24 Opera ira 24 TOSTOD SO EE 24 O Measure MES sara aia 25 Functionality and control of the measurement macros cccoccco 25 2 A 25 Changing the Scale of ieGrapnb 26 QUISO A EE EEEE E E A E 26 Data Point EE 26 Making Additional Meaeurements 26 Storing and Loading Curves oocccocccccccccncnccncnconcnnnnnnnnnnnoncncnannnnnos 27 Storing Curves as Limit Curves occoccccccccocccocncocnconncocncocnnononononos 27 Entering a Comment 27 Creating a Report oocoocccccncccncccncccncconoconoconoconncncnnnnncnnnconononinnnnnos 27 Generating a Landscape Hepnort 27 Closing the Measurement WiNdOW occcccccccocccccccccccnccncnconcnnnnos 27 Customizing Measurements ccoocccccccccncocncocnnocnnocononnnonnconnnonnnnnnonanos 28 Notes on Individual Measurements 30 Frequency Response Measurement 30 Multi Curve Meaeurement 32 Saturation Sound Pressure Level Measurement 34 Harmonic Distortion Measurement occcocccccnconncocncocnconncconconnnnnnos 36 Measurement of Dynamic Behaviour AGC Settling 38 Measurement of Input Output Characteristics cceceeee 40 Measurement of Equivalent Input Noise 00nn0nnnannannnannnannennne 42 Battery Current Measurement 44 Speech Test according to IEC oUOTI1 210 eeee scenes 46 Routine for Reference Test Gain Gettng eee 50 Routine for Alignment of the Hearing Aid in the Magnetic Field 52 1401 9353
68. l 1 l 100 200 300 400 500 600 800 1000 2000 3000 4000 5000 6000 8000 10000 Frequency Hz Was Wi Lower Limit KR Upper Limit BRR 65 x BOR Lower Limit IE Upper Limit T gt Li TREE oos init _ vel Upper Limit 4 30 SZ Lower Limit KS Upper Limit sei 99 agaj Lower Limit Close Fig 21 ISTS calibration result For each calibrated speech level the window contains a tab with a result graph Each result graph shows long term average speech spectrum LTASS and percentile levels for this speech level together with limits calculated from the nominal levels given in IEC 60118 15 for the ISTS at 65 dBSPL speech level 3 dB The calibration is valid even if not all limits are passed Particularly ad 55 dBSPL it might be difficult to pass the limits for the 30 percentile 1401 9353 12 03 23 E 3 Acoustic Measurements on Hearing Aids 5 Data Entry for Reporting 1401 9353 12 03 Operator Under Data gt Operator an operator s name can be entered which is stored in association with all calibration and measurement results If Operator is activated in the report settings the name will appear in all reports about these measurements Test object Under Data gt Test object gt New a description of the device under test can be entered gt Test Object EI x Name Type EE M anuracturer SE Serial Number m M AGC Cancel Save and close Fig 22 Window for input of information about a
69. l usuario utilizar el producto en la forma debida Este producto est destinado exclusivamente al uso en la industria y el laboratorio o si ha sido expresamente autorizado para aplicaciones de campo y de ninguna manera deber ser utilizado de modo que alguna persona cosa pueda sufrir da o El uso del producto fuera de sus fines definidos o sin tener en cuenta las instrucciones del fabricante queda en la responsabilidad del usuario El fabricante no se hace en ninguna forma responsable de consecuencias a causa del mal uso del producto 1171 0000 42 05 00 Page 6 Informaciones elementales de seguridad Se parte del uso correcto del producto para los fines definidos si el producto es utilizado conforme a las indicaciones de la correspondiente documentaci n del producto y dentro del margen de rendimiento definido ver hoja de datos documentaci n informaciones de seguridad que siguen El uso del producto hace necesarios conocimientos t cnicos y ciertos conocimientos del idioma ingl s Por eso se debe tener en cuenta que el producto solo pueda ser operado por personal especializado o personas instruidas en profundidad con las capacidades correspondientes Si fuera necesaria indumentaria de seguridad para el uso de productos de Rohde amp Schwarz encontrar a la informaci n debida en la documentaci n del producto en el cap tulo correspondiente Guarde bien las informaciones de seguridad elementales as como la documentaci n del producto y ent
70. lates whether the thd curve is displayed Stipulates whether curve of 200 harmonic is displayed Stipulates whether curve of 3 harmonic is displayed Etc Stipulates whether limit curve is checked 0 means no limit check Number of discrete measured values Value triples specifying measurements and upper limits Stipulates whether limits are checked in discrete measurements Table 4 Available parameters for harmonic distortion measurements 37 E 3 Acoustic Measurements on Hearing Aids The following standard conformal tests are based on the harmonic distortion measurement routine Harmonic Distortion ANSI Harmonic Distortion IEC 7 Harmonic Distortion ECO Measurement of Dynamic Behaviour AGC Settling amp Dynamic Behaviour Generic _ O x High level settling time 16 513 ms Low level settling time 126 ms 85 71 l 1 1 l 1 l l l l 1 0 01 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 99 Time s Y High level settling time 16 513 ms Low level settling time 126 000 ms No Standard IEC 126 Substitution other 15Y Wide Band l A Save Curve s o Load Curve Get eech As Create Report Fig 38 Measurement window for dynamic behaviour The dynamic behaviour measurement inputs a step up and step down burst of a sinewave signal to the hearing aid The output sound pressure level of the hearing aid is plotted over time The settling time is the time elapsing from the level ste
71. lectrost tica ESD El aparato est protegido en su totalidad por un aislamiento doble reforzado Page 7 Informaciones elementales de seguridad Palabras de se al y su significado En la documentaci n del producto se utilizan las siguientes palabras de se al con el fin de advertir contra riesgos y peligros PELIGRO identifica un peligro inminente con riesgo elevado que A PELIGRO provocar muerte o lesiones graves si no se evita ADVERTENCIA identifica un posible peligro con riesgo medio de provocar muerte o lesiones graves si no se evita ATENCI N identifica un peligro con riesgo reducido de provocar lesiones leves o moderadas si no se evita AVISO indica la posibilidad de utilizar mal el producto y como consecuencia da arlo En la documentaci n del producto se emplea de forma sin nima el t rmino CUIDADO Las palabras de se al corresponden a la definici n habitual para aplicaciones civiles en el rea econ mica europea Pueden existir definiciones diferentes a esta definici n en otras reas econ micas o en aplicaciones militares Por eso se deber tener en cuenta que las palabras de se al aqu descritas sean utilizadas siempre solamente en combinaci n con la correspondiente documentaci n del producto y solamente en combinaci n con el producto correspondiente La utilizaci n de las palabras de se al en combinaci n con productos o documentaciones que no les correspondan puede llevar a interpr
72. libration menu By default it is set to 2 0 Measurement frequency range allows to enter the frequency range in which the sound source is calibrated In general this will be 100 Hz to 10kHz which is the default Number of points specifies the number of logarithmically spaced frequencies measured for the sound source equalization High pass rumble filter allows to set a high pass filter which is active in most measurements except distortion measurements battery current measurements and noise measurements The edge frequency of the high pass filter can be set and the filter can be activated and deactivated The high pass filter is not applied to battery current measurements 13 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids If File defined is deactivated the edge frequency can be set in the Limit frequency field The R amp S UPV firmware then calculates the filter coefficients and the delay to account for the filter settling If File defined is activated a file with filter coefficients can be loaded using the Browse button A measurement delay for the filter settling time can be set manually if the Def delay checkbox is activated Highpass Filter i Active Lirrit frequency 100 Hz he File defined Browse DAU PY Usen HP 1004 C0E IY Det delay 20 m ren Le Fig 10 Input window for filter settings Low pass hiss noise filter allows to set a l
73. man and Spanish Segments are mounted in sections of 10 or 15 seconds with pauses in between The total length of the test signal used in this software is 60 seconds The ISTS is equalized and pre filtered as described in the Calibration section Recordings of the signal at the input and output of the hearing aid are analyzed using the following steps e Input and output signal are time aligned by a cross correlation delay measurement e Both signals are filtered in third octave bands with centre frequencies from 250 Hz to 6300 Hz e The RMS value within each 3 octave band is determined in sections of 125 ms length overlapping by a factor of 2 such that a level value is obtained every 62 5 ms e A percentile analysis of the input signal is performed on the levels pertaining to each third octave band done during calibration e Within each third octave band time sections are identified having a level within 3 dB of certain percentile values done during calibration As a standard the 30 65 and 99 percentile are used The 99 percentile is defined as the level to which 99 of the samples are lower and 1 of the samples are higher in level e For each combination of percentile and third octave band the percentile gain is determined by subtracting the input level from the output level of each selected section and averaging the level difference in all selected sections of this percentile third octave band combination e
74. measurements in it Clicking on a measurement in this sub menu opens a window which allows to change parameters of the selected measurement gt Parameters of Frequency Response Generic Of x Template Files No File Name Uppermargin dB Lower margin dB Description Gain or output level over frequency with input a level as parameter Ed Add Number Delete Edit 1 4 2007 10 03 51 AM Operator instruction Parameters Connect output of hearing aid to measurement coupler Set gain control to pre defined position and switch on hearing aid Place hearing aid in 1 battery voltage MI ie 2 lower frequency limit Hz Double 200 Fal reference test position 3 upper frequency limit Hz Double 5000 Fal 4 number of frequencies Integer 57 Fals 5 display result as gain Boolean true Fals Program File FRI 6 selective measurement Boolean False Fal 7 number of sweeps Parameter 1 Fal Setup Files 8 sweep 1 level dB Double 60 Fal 9 measurement delay s Double 0 02 Fal No File name 1 FR1 set 10 inductive Boolean false Fal 11 number of HFA frequencies Parameter 3 Fabel b Number 13 Edit Number 13 Edit Cancel ox Fig 28 Measurement setup window The Title appears in the measurement menu and forms the heading of the report The Description can be chosen to be included into the report Date shows the date of the last change to this measurement defi
75. ment with fast 3 octave filter OSPL as gain Boolean false Stipulates whether the full on value is measured as gain or as level OSPL dB Double 90 Input level for the full on measurement RTS as gain Boolean true Stipulates whether the value during adjustment is measured as gain or as level RTS level dB Double 60 Input level during adjustment dBSPL or dB re 1 mA m measurement delay s Double 0 Pre delay between generator setting and measurement trigger allows for settling of the DUT e g AGC induction Boolean false False Acoustic RTS input True Inductive RTS input OSPL measurement is always acoustic number of HFA frequencies Parameter count 3 Number of frequencies averaged for gain measurement HFA frequency 1 Hz Double 1000 HFA frequency 2 Hz Double 1600 HFA frequency 3 Hz Double 2500 level difference dB Double 77 Difference between target value and full on value upper tolerance dB Double 1 5 Maximum allowed difference between value during adjustment and target value lower tolerance dB Double 1 5 Minimum allowed between value during adjustment and target value Table 10 Available parameters for the reference test gain setting The following standard conformal tests are based on the reference test gain setting routine Reference Test Setting ANSI Reference Test Setting IEC 0 Reference Test Setting IEC 7 1401 9353 12 03 51 E 3 1401 9353 12 03 Acoustic Measurements o
76. n Hearing Aids Routine for Alignment of the Hearing Aid in the Magnetic Field Magnetic Field Alignment Iof x Maximum Current 80 80 Align orientation of the hearing 75 75 aid such that the indication in 70 70 the right bar is maximised 65 65 Maximum 60 60 55 55 50 50 45 45 Current 40 35 30 IEC 711 Substitution 1 3V Selective Max Reset Change Scale Stop Done Fig 48 Display of the routine for magnetic field alignment This routine shows the output SPL of the hearing aid with a defined magnetic field strength in real time on a graphic thermometer display and on a numeric display In addition a maximum hold display is provided The maximum reading can be reset by clicking the Max Reset button The range of the graphic displays can be adapted using the Change Scale button The Stop button stops the continuous measurement and leaved the window open The Done button stops the continuous measurement and closes the window The following table lists all available parameters for magnetic field alignment Name Type Value Explanation Selective Boolean True True selective measurement with fast 3 octave filter induction Boolean True False Acoustic input True Inductive input number of HFA frequencies Parameter count 1 Number of frequencies averaged for gain measurement HFA frequency 1 Hz Double 1600 Input level dB re 1 mA m
77. n Ratio 4 43 No Standard IEC 126 Substitution other EA Wide Band Diss Gain Seet 5 Me Ge ort Save Curve As Load Curve SE As Create Report cose Fig 39 Measurement window for input output characteristics The softkey Display Gain or Display Level respectively toggles the Y axis data between gain and sound pressure level With the softkey Calculate Comp Ratio a compression ratio may be calculated for any of the measured curves Compression Ratio Calculate compression ratio for curve with frequency E 2000 Hz 85 00 E El Close Fig 40 Window for calculation of compression ratio Lower Level With Lower Level and Upper Level the input levels for the compression ratio calculation are determined The combo box top right selects one of the measured curves When the button Calculate is clicked the compression ratio is calculated and displayed in the text box below 40 E 3 Acoustic Measurements on Hearing Aids The following table lists all available parameters in the generic input output measurement Name Type Value Explanation battery voltage V Double 0 Supply voltage provided at ANLG AUX OUT Overrides the general setting O V means use voltage from general setting lowest input level dB Double 40 Start level of sweep dBSPL or dB re 1 mA m highest input level dB Double 90 Stop level of sweep dBSPL or dB re 1 mA m number of l
78. nd averaged at the specified HFA frequencies From this value a target level is calculated The gain of the hearing aid at the specified frequencies is repeatedly measured until the STOP button is clicked The thermometer shows the deviation from the target value If the deviation becomes smaller than 3 dB the scale is enlarged The colour of the thermometer is red as long as the deviation is higher than the allowed tolerance and turns green as soon as the deviation is within tolerance Reference Test Setting IEC 0 Iof x Adjust volume setting of the hearing aid such that 4 the bar to the left is close to 0 If the bar is green the gain is within the specified tolerance 3 2 1 OSPL HFA Current HFA S Mozos Fee 2 3 Comment 4 5 NEC 711 Substitution Sample Hearing id1 1 3V Wide Band DUNE Create Report Fig 47 Display of the routine for reference test gain setting adjusted 1401 9353 12 03 50 E 3 Acoustic Measurements on Hearing Aids A comment to be printed with the report e g setting of the gain control may be entered in the Comment field The following table lists all available parameters for reference test gain setting Name Type Value Explanation battery voltage V Double 0 Supply voltage provided at ANLG AUX OUT Overrides the general setting O V means use voltage from general setting selective measurement Boolean false True selective measure
79. nd noise values are 26 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids calculated and displayed in the legend However limits are not checked This function can e g be used to compare different settings in a device under test If the item Store results of further measurements is activated in the Options menu graphs and result values obtained with this functionality are added to the results database and will appear later in reports on this measurement All curves obtained within the same measurement will appear in the report in the same graph Storing and Loading Curves All measured curves in the graph can be stored to an ASCII file and stored curves can be loaded back into the graph The softkey Store Curve opens a window in which a combo box offers choice between the legends of all measured curves in the graph The curve associated in which the selected entry is stored to the file at the specified location Storing Curves as Limit Curves With Store As Limit Curve a curve can be selected and stored into a R amp S UPV format limit file with a specified shift in Y axis direction This functionality can be used to generate limit curves from golden devices for evaluation purpose Regarding the use of such limit curves see section Customizing Measurements below Entering a Comment With the softkey Enter Comment or the item Comment in the graph context menu a comment can b
80. nd source calibration and comparison measurement should be a free field type and the IEC 126 coupler should be used with a pressure field type However with a microphone the frequency response difference is negligible up to at least 10 kHz Acoustic Measurements on Hearing Aids When using a 2 pressure microphone as reference microphone a good approximation of a flat free field response is achieved if the microphone is place such that the sound incidence is from 90 degrees relative to the microphone axis Note An external USB keyboard and a mouse must be connected to the R amp S UPV Caution R amp S UPV K7 does not support the use of headphones Do not connect headphones to the R amp S UPV during hearing aid tests High level signals may be present at the headphone connector The audio analyzer must meet the following firmware requirements e R amp S UPV firmware version 3 1 0 or higher e License key R amp S UPV K 7 installed e For tests with speech like signals according to IEC 60118 15 license key R amp S UPV K71 must be installed in addition Installing the Software The application program requires key K7 to be installed The application program and the key are installed in the factory in case a new R amp S UPV is ordered together with this option If the option is ordered separately the key as well as the installation manual is part of the delivery The program required and the associated files are in the folder UPV
81. ne of our Customer Support Centers A team of highly qualified engineers provides telephone support and will work with you to find a solution to your query on any aspect of the operation programming or applications of Rohde amp Schwarz equipment Up to date information and upgrades To keep your instrument up to date and to be informed about new application notes related to your instrument please send an e mail to the Customer Support Center stating your instrument and your wish We will take care that you will get the right information USA amp Canada Monday to Friday except US public holidays 8 00 AM 8 00 PM Eastern Standard Time EST Tel from USA 888 test rsa 888 837 8772 opt 2 From outside USA 1410 910 7800 opt 2 Fax 1 410 910 7801 E mail CustomerSupport rohde schwarz com East Asia Monday to Friday except Singaporean public holidays 8 30 AM 6 00 PM Singapore Time SGT Tel 65 6 513 0488 Fax 65 6 846 1090 E mail CustomerSupport rohde schwarz com Rest of the World Monday to Friday except German public holidays 08 00 17 00 Central European Time CET Tel 49 89 4129 13774 Fax 49 0 89 41 29 637 78 E mail CustomerSupport rohde schwarz com ROHDE amp SCHWARZ 1171 0200 22 04 00 1 Overview 1401 9353 12 03 Acoustic Measurements on Hearing Aids Tests of basic properties of hearing aids are specified in standards IEC 60118 and ANSI S3 22 They comprise measurement of output sound
82. nition Operator instruction is the text displayed before the start of each measurement provided that the item Show operator instructions is activated in the Options menu The entry in the field Program File designates the measurement type and must not be changed The field Setup Files specifies the R amp S UPV setups used by the measurement The specified file can be replaced by a user defined file but the number of setups is defined by the measurement type The customized setup file must be stored in folder D Hearing It is recommended to generate customized setups by copying existing ones Note that changes in the setup like changing the analysis function or generator signal may cause malfunction of the measurement Some parameters of the setup might be overwritten by the macro during the measurement run The field Template files specifies limit template curves for the response curve The buttons Add or Edit produce the following input window 28 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids Template Curve Number i Upper limit Lower limit File name Browse Fig 29 Input window for limit template curve The radio buttons allow to determine whether the given curve should be used as upper limit lower limit or for information only no limit check The field File name must contain the path name of the file To generate a new limit curve file use the s
83. oad Curve eyes Create Report Close Fig 42 Graphic display of battery current measurement Battery Current Generic Result Data iy Frequency H Level dB Current m Lower limit m Upper limit m Verdict oa No Standard IEC 126 Substitution other 1 5 Show Graph M pee Save Curve As Load Curve SE Create Report Close Fig 43 Value table display of battery current measurement The softkey Show Discrete Values or Show Graph respectively toggles between the graph view and the data table view of the measurement window 44 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids The following table lists all available parameters in the generic battery current measurement Name battery voltage V lowest input level dB highest input level dB number of level steps number of sweeps sweep 1 frequency Hz sweep 2 frequency Hz sweep 3 frequency Hz measurement delay s induction check limits for curve no number of discrete points point 1 Hz dB lower limit upper limit point 2 Hz dB lower limit upper limit point 3 Hz dB lower limit upper limit check limits Type Double Double Double Integer Parameter count Double Double Double Double Boolean Byte Parameter count String String String Boolean Value 0 40 90 50 500 1000 2000 0 05 false 2 3 1000 0 0 05
84. oftkey Save as limit curve of the respective measurement window or copy and edit an existing limit file using a text editor All other available parameters of a measurement definition are shown in the Parameters data grid The rightmost column with the headline Fixed displays whether the respective parameter can be changed by the operator or not In generic measurements all parameters may be changed In measurements which follow standards only parameters which are not determined by the standard may be changed by the operator The Edit button opens an input window for the parameter in the line specified in Number Humber Type Double e Value i A Locked on JSL me Fig 30 Input window for parameter value Alternatively this input window can be opened by double clicking on the row header of the parameter to be edited Name appears in the report and explains the meaning of the parameter Type is determined by the measurement routine and cannot be changed In the field Value a value must be entered which conforms with the syntax rules of the selected data type The syntax is checked automatically when the text box is left However there is no check for the allowable range of the value Entering inadequate values e g too high levels negative frequencies may cause malfunction of the measurement 29 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids Note
85. olo debe ser desmontado por personal especializado con formaci n adecuada Un desmontaje inadecuado puede ocasionar da os para la salud Se deben tener en cuenta las directivas nacionales referentes a la eliminaci n de residuos En caso de que durante el trato del producto se formen sustancias peligrosas o combustibles que deban tratarse como residuos especiales p ej refrigerantes o aceites de motor con intervalos de cambio definidos deben tenerse en cuenta las indicaciones de seguridad del fabricante de dichas sustancias y las normas regionales de eliminaci n de residuos Tenga en cuenta tambi n en caso necesario las indicaciones de seguridad especiales contenidas en la documentaci n del producto La eliminaci n incorrecta de sustancias peligrosas o combustibles puede causar da os a la salud o da os al medio ambiente 1171 0000 42 05 00 Page 12 Qualitatszertitikat Certificate of quality Certificat de qualite Sehr geehrter Kunde Sie haben sich fur den Kauf eines Rohde amp Schwarz Produktes ent schieden Hiermit erhalten Sie ein nach modernsten Fertigungsmethoden hergestelltes Produkt Es wurde nach den Regeln unseres Qualitatsmanage mentsystems entwickelt gefertigt und gepr ft Das Rohde amp Schwarz Qualitatsmanagementsystem ist u a nach 1509001 und ISO 14001 zertifiziert Der Umwelt verpflichtet 1 Energie effiziente ROHS konforme Produkte 1 Kontinuierliche Welterentwicklung nachhaltiger Umweltkonzepte 1 1
86. opened it must be disconnected from the AC supply network Otherwise personnel will be exposed to the risk of an electric shock Adjustments replacement of parts maintenance and repair may be performed only by electrical experts authorized by Rohde amp Schwarz Only original parts may be used for replacing parts relevant to safety e g power switches power transformers fuses A safety test must always be performed after parts relevant to safety have been replaced visual inspection PE conductor test insulation resistance measurement leakage current measurement functional test This helps ensure the continued safety of the product Batteries and rechargeable batteries cells If the information regarding batteries and rechargeable batteries cells is not observed either at all or to the extent necessary product users may be exposed to the risk of explosions fire and or serious personal injury and in some cases death Batteries and rechargeable batteries with alkaline electrolytes e g lithium cells must be handled in accordance with the EN 62133 standard 1 2 Cells must not be taken apart or crushed Cells or batteries must not be exposed to heat or fire Storage in direct sunlight must be avoided Keep cells and batteries clean and dry Clean soiled connectors using a dry clean cloth Cells or batteries must not be short circuited Cells or batteries must not be stored in a box or in a drawer where they can short circuit
87. ow pass filter which is active in most measurements except battery current measurements and noise measurements The edge frequency of the high pass filter can be set and the filter can be activated and deactivated The low pass filter is not applied to battery current and distortion measurements The settings in the Lowpass Filter window are according to those for the highpass filter With noise measurements the filters from the Options menu are only applied to the gain measurement The noise measurement has own parameters for the band limits of the noise level measurement Note Filters slow down the measurement Therefore they should only be used if necessary In particular a combination of selective measurement with high pass and or low pass filter is not recommended Adaptive measurement function settling causes gain and level measurements to be repeated until the result has settled within a specified tolerance This is helpful to assure that an AGC which is present in the signal path has adapted to the applied input signal of the hearing aid 14 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids gt Settling Ox M Active Type C Exponential Ce Flat Samples 33 Tolerance moy E Resolution 40 04 dBSPL Timeout sioa S ze i Fig 11 Input window for adaptive measurement With the Flat type measurements are repeated until the last Samples number of results are wi
88. p until the level settles within a defined tolerance band around the final output level The tolerance bands and the settling periods are indicated in the graph with dotted lines The following standard conformal tests are based on the dynamic behaviour measurement routine Dynamic Behaviour ANSI Dynamic Behaviour at High Level IEC 2 Dynamic Behaviour at Speech Level IEC 2 Dynamic Behaviour IEC 7 1401 9353 12 03 38 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids The following table lists all available parameters in the generic dynamic behaviour measurement Name battery voltage V test frequency Hz high level dB low level dB on time s interval s selective measurement induction store diagram display dB attack tolerance dB attack time lower limit ms attack time upper limit ms release tolerance dB release time lower limit ms release time upper limit ms check limits Type Double Double Double Double Double Double Boolean Boolean Boolean Boolean Double Double Double Double Double Double Boolean Value 0 2000 80 55 0 25 False false true true 20 150 50 300 true Explanation Supply voltage provided at ANLG AUX OUT Overrides the general setting O V means use voltage from general setting Frequency of sine burst tone High level of sine burst dBSPL or dB re 1 mA m
89. point and limit check in comparison to the requirements in IEC 60118 15 e Analysis of the speech signal at the reference point as input signal to the hearing aid according to IEC 60118 15 Raw results like 3 octave spectra over time and selected intervals in each 3 octave for given percentiles are stored in files for later use in the measurement function e Pre filtering of the equalized signal according to the different microphone location effects Standard speech levels are 65 dBSPL 80 dBSPL and optionally 55 dBSPL Additionally calibration can also be performed at other levels if required Especially for low levels like 55 dBSPL a low noise microphone is required to get correct values for the 30 percentile Before starting the ISTS calibration routine either a coupler microphone or a reference microphone must be calibrated If the coupler microphone is to be used for this calibration function select Optiones gt Use coupler mic as reference mic The coupler microphone must be connected to analyzer input 1 If a separate reference microphone is to be used Optiones gt Use coupler mic as reference mic must be unchecked The reference microphone must be connected to analyzer input 2 22 E 3 Acoustic Measurements on Hearing Aids d Wave Test Signal Calibration Pale x 55 dBSPL 65 dBSPL 80 dBsPL wo Le CO o J o 60 Level AB SPL 8 GA ak Limits Pass 10 1 1 l 1 l 1 l 1 1 1 l
90. put measurements The following standard conformal tests are based on the measurement routine for input output characteristics Input Output characteristics ANSI Input Output characteristics IEC 2 Input Output characteristics IEC 7 1401 9353 12 03 41 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids Measurement of Equivalent Input Noise Equivalent Input Noise 1 3 oct Generic Ol x SPL Gain dBSPL dB d l l l 67 058 100 1000 10000 14745 Frequency Hz L 26 93 dBSPL Pass Y Equivalent input noise Y Gain YB 3 inp noise closed Diff 1 36 dB Input noise off Diff 16 70 dB No Standard IEC 126 Substitution other 1 54 PEA Save Curve As Load Curve SS As Create Report Fig 41 Measurement window for equivalent input noise The test routine for equivalent input noise determines the gain at an average of pre defined frequencies The output noise is measured and the equivalent input noise is determined by subtracting the gain from the output noise level In addition to the wideband input noise it is optionally possible to measure the 3 octave spectrum of the equivalent input noise Additional measurements can be performed with sealed input and with hearing aid switched off The equivalent input noise with sealed input should not differ significantly from that measured with open input because otherwise the noise must be assumed to be picked up from the acoustic en
91. r guelas a usuarios posteriores Tener en cuenta las informaciones de seguridad sirve para evitar en lo posible lesiones o da os por peligros de toda clase Por eso es imprescindible leer detalladamente y comprender por completo las siguientes informaciones de seguridad antes de usar el producto y respetarlas durante el uso del producto Deber n tenerse en cuenta todas las dem s informaciones de seguridad como p ej las referentes a la protecci n de personas que encontrar n en el cap tulo correspondiente de la documentaci n del producto y que tambi n son de obligado cumplimiento En las presentes informaciones de seguridad se recogen todos los objetos que distribuye el grupo de empresas Rohde amp Schwarz bajo la denominaci n de producto entre ellos tambi n aparatos instalaciones asi como toda clase de accesorios S mbolos y definiciones de seguridad Aviso punto de peligro general Observar la documentaci n del producto Tensi n de alimentaci n de PUESTA EN MARCHA PARADA Atenci n en el manejo de dispositivos de peso elevado Peligro de choque el ctrico Corriente continua DC Indicaci n de estado de espera Standby 1171 0000 42 05 00 tencia superficie caliente Conexi n a tierra Conexi n a conductor de protecci n Corriente alterna Corriente AC continua Corriente alterna DC AC Conexion a masa Aviso Cuidado en el manejo de dispositivos sensibles a la e
92. requency limit Hz number of frequencies display result as gain selective measurement number of sweeps sweep 1 level dB measurement delay s inductive number of HFA frequencies HFA frequency 1 Hz HFA frequency Hz HFA frequency Hz HFA upper limit dB HFA lower limit dB check limit for sweep no calc freq range for swp no level difference dB check frequency range limits max lower frequency Hz min upper frequency Hz display curve maximum lower limit of max dB upper limit of max dB check max limits for swp no Type Double Double Double Integer Boolean Boolean Parameter count Double Double Boolean Parameter count Double Double Double Double Double Byte Byte Double Boolean Double Double Boolean Double Double Byte Value 0 200 5000 57 True false 60 0 02 false 1000 1600 2500 30 10 20 True 500 3500 True 40 Explanation Supply voltage provided at ANLG AUX OUT Overrides the general setting O V means use voltage from general setting Start frequency of sweep Stop frequency of sweep Number of sweep points rue Gain on Y axis False SPL on Y axis True Selective measurement with fast 3rd octave filter Number of sweeps with level as parameter Sweep level for each sweep dBSPL or dB re 1 mA m Pre delay between sweep Step and measurement trigger allows for settling of the D
93. rheating can cause electric shock fire and or serious personal injury or death 1171 0000 42 05 00 Page 2 Basic Safety Instructions Electrical safety If the information on electrical safety is not observed either at all to the extent necessary electric shock fire and or serious personal injury or death may occur 1 Prior to switching on the product always ensure that the nominal voltage setting on the product matches the nominal voltage of the AC supply network If a different voltage is to be set the power fuse of the product may have to be changed accordingly 2 In the case of products of safety class with movable power cord and connector operation is permitted only on sockets with an earthing contact and protective earth connection 3 Intentionally breaking the protective earth connection either in the feed line or in the product itself is not permitted Doing so can result in the danger of an electric shock from the product If extension cords or connector strips are implemented they must be checked on a regular basis to ensure that they are safe to use 4 If the product does not have a power switch for disconnection from the AC supply network the plug of the connecting cable is regarded as the disconnecting device In such cases always ensure that the power plug is easily reachable and accessible at all times corresponding to the length of connecting cable approx 2 m Functional or electronic switches are not suit
94. s In the combo box lower left a category of devices must be selected Subsequently the table is reduced to available devices in this category At first startup there is only a Default device for each category but when more devices have been created with the New device function a choice will be available in this view In this state a row in the table can be marked with a mouse click on its left end A mouse click on the button Select selects this device for the associated usage Select Calibrated Devices Mi x Usage Manufacturer Type Serial No Date and Time Calib value File name PEC 126 GRAS 4046 1234 1 11 2007 11 004M null D Hearing Calt EC 126 Default 1 10 2007 6 24PM null D 4Hearing Call D flec 126 Coupler Microphone D Fig 15 Selection window for particular device type here IEC 126 coupler Subsequently this procedure may be repeated for other categories Finally all selections are confirmed by clicking the Ok button All calibration data are stored on the R amp S UPV hard disk and are therefore automatically available again after every restart The calibration values for the R amp S UPV K7 option are stored independently of other options All calibration routines below require as pre requisite that a device for the respective usage has been generated and selected 18 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids To simplify the procedure for the case tha
95. s should be shown in a separate diagram for each tested speech level Specifies number of percentiles for which a speech gain is determined Selected percent value of first percentile Selected percent value of second percentile Selected percent value of third percentile Specifies whether the LTASS gains should be shown in the speech gain diagrams Specifies whether the percentile gains at each level should be normalized to the LTASS gain at the respective level E 3 Acoustic Measurements on Hearing Aids The following standard conformal tests are based on the speech test routine EIG Estimated Insertion Gain CG Couple Gain IEC 60118 15 EIG 55 65 80 dBSPL Abs IEC 60118 15 EIG 55 65 80 dBSPL Rel IEC 60118 15 EIG 65 80 dBSPL Abs IEC 60118 15 EIG 65 80 dBSPL Rel IEC 60118 15 EIG 55 dBSPL Abs IEC 60118 15 EIG 55 dBSPL Rel IEC 60118 15 EIG 65 dBSPL Abs IEC 60118 15 EIG 65 dBSPL Rel IEC 60118 15 EIG 80 dBSPL Abs IEC 60118 15 EIG 80 dBSPL Rel IEC 60118 15 CG 55 65 80 dBSPL Abs IEC 60118 15 CG 55 65 80 dBSPL Rel IEC 60118 15 CG 65 80 dBSPL Abs IEC 60118 15 CG 65 80 dBSPL Rel IEC 60118 15 CG 55 dBSPL Abs IEC 60118 15 CG 55 dBSPL Rel IEC 60118 15 CG 65 dBSPL Abs IEC 60118 15 CG 65 dBSPL Rel IEC 60118 15 CG 80 dBSPL Abs IEC 60118 15 CG 80 dBSPL Rel Furthermore the test software provides non standard short tests with a set
96. s on Individual Measurements Frequency Response Measurement Frequency Response Generic F lower 200 97 Hz Gain dB 0 11331 l l l l l I I l l l 100 200 300 400 500 600 800 1000 2000 3000 4000 50006000 8000 10000 HFA 60dB 41 45 dB Fail Frequency Hz Y 60 desPL HFA 41 4548 PY Limit Gain No Standard IEC 128 Substitution other 1 5V Wide Band r Calculate HFA M EN Save Curve As Load Curve So ede As Create Report Fig 31 Display window of frequency response measurement The softkey Display Level or Display Gain respectively allows to toggle between gain and level in the Y axis of the graph The button Calculate HFA allows to calculate a high frequency average or special frequency average from one of the displayed curves HFA frequencies Hz Calculate HFA for tooo Eure with input level 1600 500 60 00 dE 43 49 dE Close SS Fig 32 Input window for HFA calculation In the text box on the left side the HFA frequencies are entered in separate lines In the combo box top right one of the existing curves is chosen When the button Calculate is clicked the text box below shows the associated HFA value 30 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids The following table lists all available parameters in the generic frequency response measurement Name battery voltage V lower frequency limit Hz upper f
97. st penetration by liquids If the necessary precautions are not taken the user may suffer electric shock or the product itself may be damaged which can also lead to personal injury Never use the product under conditions in which condensation has formed or can form in or on the product e g if the product has been moved from a cold to a warm environment Penetration by water increases the risk of electric shock Prior to cleaning the product disconnect it completely from the power supply e g AC supply network or battery Use a soft non linting cloth to clean the product Never use chemical cleaning agents such as alcohol acetone or diluents for cellulose lacquers Operation 1 Operating the products requires special training and intense concentration Make sure that persons who use the products are physically mentally and emotionally fit enough to do so otherwise injuries or material damage may occur It is the responsibility of the employer operator to select suitable personnel for operating the products Before you move or transport the product read and observe the section titled Transport As with all industrially manufactured goods the use of substances that induce an allergic reaction allergens such as nickel cannot be generally excluded If you develop an allergic reaction Such as a skin rash frequent sneezing red eyes or respiratory difficulties when using a Rohde amp Schwarz product consult a physician immediat
98. stic input the level is set in dBSPL For inductive input the level can be entered in mA m or dB mA m If there are already sweeps present in the graph the input window always opens with the settings done for the last sweep In addition buttons are provided for increasing or decreasing the level from the previous sweep by 1 5 or 10 dB 1401 9353 12 03 33 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids Add Measurement Input Type Acoustic Induction Input Level dB m m 1 db 1 dE 5 dB 5 db 10 dB 10 db Cancel Measure gt Kc Fig 34 Entry window for sweep level in Multi curve measurements Saturation Sound Pressure Level Measurement Saturation SPL Generic O x 130 76 120 110 59 238 i l D l 1 l l 1 l 1 m 1 D 100 200 300 400 500600 800 1000 2000 3000 4000 50006000 800010000 Frequency Hz Y 1 Max 121 53 dBSPL No Standard IEC 128 Substitution other 1 5 Wide Band e Save Curve As Load Curve e As Create Report Fig 35 Display window of saturation sound pressure level measurement The saturation sound pressure level measurement performs the specified number of level sweeps and records the maximum level obtained in each sweep 34 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids The following table lists all available parameters in the generic saturation sound pressure level measurement Name
99. sults in the Select column and choosing item Report Selection gt Report Selected Results see Fig 49 Rows marked with XXXXX in the Select column will be added to the report The selection can be toggled by clicking into the respective Select cells Note that another cell must be clicked before the same cell can be toggled again Configuring the One Page Report Menu item Report gt One Page Report Settings opens the following input window One Page Report Settings M Style Color Black and W hite HF amp Gain value at 60 dB Telecoil OSPLImA m Dep n s Frequency Response at Ref Gain Show Level Show Gain M Curve Identification Show Legends Show Labels Axis Scaling Diagram i osPL max X Axis Auto Define Left 100 00 pel 10000 00 24 CY Axis gt l Auto Define Bott eoma Top 130 00 Edit Comment T Edit Serial Edit Equipment M Memorize Serial Sg Fig 56 Data entry window for settings of the one page report Style allows to choose between black and white and Color output HFA Gain vale at 60 dB Telecoil selects whether the output sound pressure level measured at HFA ref frequency with 10 mA m is displayed in column Setting Telecoil and row Gain 60 dB REF OSPL 1mA m ref or whether a virtual value at 1 mA m is displayed calcul
100. t it is not intended to use multiple devices of the same category nor to include information about the used devices into a report there is a Default device selected for each device type or category after the first start of the program Microphone Calibration gt Insert the measuring microphone fully into the adapter of the sound level calibrator and switch on the calibrator Note After inserting the microphone wait about 10 s to allow for static pressure equalization gt Call the test routine with Calibration gt Microphone gt Coupler or Calibration gt Microphone gt Reference from the main menu depending on the microphone Connect microphone to Analyzer input 1 Insert microphone into calibrator and switch on calibrator Fig 16 Initial window of microphone calibration Next the nominal SPL of the calibrator has to be entered Nominal Value 124 00 dESPL k Apply Correction Values for Fistonphone Volume Correction DEES dESPL Atmospheric Correction 1 304 dE SPL Effective Pressure Level 1235 dBSPL Cancel Ok E Fig 17 Input window for calibration SPL Checkbox Apply Correction Values for Pistonphone allows to specify volume correction and atmospheric correction values which are added to the nominal calibration value to calculate the effective pressure level at the microphone during calibration If this checkbox is checked the default for the nominal calibration valu
101. tation the following safety instructions Using the product requires technical skills and a basic knowledge of English It is therefore essential that only skilled and specialized staff or thoroughly trained personnel with the required skills be allowed to use the product If personal safety gear is required for using Rohde amp Schwarz products this will be indicated at the appropriate place in the product documentation Keep the basic safety instructions and the product documentation in a safe place and pass them on to the subsequent users Observing the safety instructions will help prevent personal injury or damage of any kind caused by dangerous situations Therefore carefully read through and adhere to the following safety instructions before and when using the product It is also absolutely essential to observe the additional safety instructions on personal safety for example that appear in relevant parts of the product documentation In these safety instructions the word product refers to all merchandise sold and distributed by the Rohde amp schwarz group of companies including instruments systems and all accessories Symbols and safety labels Notice general Caution Danger of Warning PE terminal Ground Ground Be careful when danger location when electric Hot surface terminal handling handling electrostatic heavy sensitive equipment devices Observe product documentation ON OFF supply Standby Direct current Alternating
102. test object se With Data gt Test object gt Select one of the entered test objects can be selected The data of this selected test object will be stored in association with all measurements and appear on the associated reports if DUT information is activated in the report settings 24 E 3 6 Measurements 1401 9353 12 03 Acoustic Measurements on Hearing Aids Functionality and control of the measurement macros Frequency Response Generic F lower 200 97 Hz 5 000 0 z Gain dB 0 11331 l l l l l l l l l l l l l l l 100 300 400 500 600 800 1000 2000 3000 4000 50006000 8000 10000 HFA 60dB 41 45 dB Fail Frequency H2 MY 60 dBSPL HFA 41 45 dB PY Limit Gain No Standard IEC 126 Substitution other d SES DV Wide Band Display Level Level Calculate HFA fees Save Curve As Load Curve sme ai Create Report Close Fig 23 Example of a measurement window When a measurement macro is started e g from the Measurement menu the standardized measurement is immediately executed With a single measurement the window of the measurement macro stays open after the measurement is terminated At that time the following functionality is available Geer Sle ltz Show Cursor Change Scale Data Point Size Comment Fig 24 Context menu of the graph window Zooming When the Shift key on the keyboard is pressed the mouse cursor changes to the zoom cursor When t
103. thin the given Tolerance or the difference between two subsequent measurement results is below the Resolution value The Resolution can be used to take into account the idle channel noise of hearing aid and measurement equipment Note The resolution value must be set high enough to take idle channel noise into account If it is set too low especially measurements with high gain at low input levels may be aborted due to invalid result values Note If the use of filters leads to slow measurements the timeout value may have to be increased With the exponential type of settling differences between the earlier results may be higher than specified but the results must converge exponentially into the specified values If the settling time of the hearing aid is known measurement may be faster with settling turned off In this case the known settling time has to be entered as pre delay in the measurement parameters of each measurement Function settling is generally not applied to battery current measurements For harmonic distortion measurements the resolution is set fix to 0 01 THD Standard allows to select one of the available standards Measurements belonging to this standard will be checked in the measurement menu If Allow only standard measurements is checked it is not possible to start single measurements which do not belong to the standard lf Select standard at startup is checked the
104. tions sorted by standards like in the Standards menu A measurement is appended to the sequence by highlighting it in the tree view box on the left side and clicking the Append button Subsequently a measurement which is highlighted in the checked list box on the right side can be moved within the sequence using the buttons Move up and Move down and deleted from the sequence with the Delete X button It is possible to edit parameters which are not defined by the standard before appending the measurement to the sequence This is done by clicking the button Edit and append It is for example possible to assemble a test sequence which repeats a certain test with different battery voltages 99 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids Opening an Existing Sequence The menu item Sequence gt Open opens a file selector for specifying the sequence to be loaded The sequence window opens with the specified sequence loaded The sequence can then be edited and or run Using a Sample Sequence Sample sequences are provided in the folder C Program Files Rohde amp Schwarz UPV K7 Hearing Aid Tests Before being edited or run the files should be copied to the current D Hearing directory This can be done with menu item Sequence gt Insert sample sequence Sample sequences are provided for measurements according to IEC 60118 0 1 2 according to IEC 60118 7 and accordin
105. tling time of 5 seconds and an analysis time of 15 seconds Short EIG 55 65 80 dBSPL Abs Short EIG 55 65 80 dBSPL Rel Short EIG 65 80 dBSPL Abs Short EIG 65 80 dBSPL Rel Short EIG 55 dBSPL Abs Short EIG 55 dBSPL Rel Short EIG 65 dBSPL Abs Short EIG 65 dBSPL Rel Short EIG 80 dBSPL Abs Short EIG 80 dBSPL Rel Short CG 55 65 80 dBSPL Abs Short CG 55 65 80 dBSPL Rel Short CG 65 80 dBSPL Abs Short CG 65 80 dBSPL Rel Short CG 55 dBSPL Abs Short CG 55 dBSPL Rel Short CG 65 dBSPL Abs Short CG 65 dBSPL Rel Short CG 80 dBSPL Abs Short CG 80 dBSPL Rel The short tests are meant to speed up alignment procedures and quick tests whereas precise testing according to the standard requires the full analysis time of 45 seconds after a settling time of 15 seconds 1401 9353 12 03 49 E 3 Acoustic Measurements on Hearing Aids Routine for Reference Test Gain Setting Reference Test Setting IEC 0 Of x 20 Adjust volume setting of the hearing aid such that the bar to the left is close to 0 If the bar is green 15 the gain is within the specified tolerance 10 5 a OSPL HFA Current HFA 102 90 dB 100 85 dB 10 Comment 15 20 EC 711 Substitution Sample Hearing id1 1 3 Wide Band Fig 46 Initial display of the routine for reference test gain setting At start of the macro the full on gain or output SPL is measured a
106. utput signal of the hearing aid The speech level can be selected whereas the speech level which is currently on display is pre selected Level and output volume can be set in the following window 100 50 0 Y Speaker Enable MV Phone Enable Close Fig 45 Volume control for replay of output signal Caution When using a headset beware of excessive sound pressure Take off and or disconnect the headset after listening and before starting a new test The following table lists all available parameters in the generic speech test Name Type Value Explanation battery voltage V Double 0 Supply voltage provided at ANLG AUX OUT Overrides the general setting UV means use voltage from general setting Induction Boolean False Must always be False lowest band Byte 4 Lowest analyzed 27 octave band Band 0 corresponds to 100 Hz highest band Byte 18 Highest analyzed 3 octave band Band 20 corresponds to 10 kHz test signal without file extension String ISTS V1 0_60s_16bit_48kHz Currently only this signal file is supported analysis start time s Double 15 Length of settling time 47 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids analysis length s microphone location number of signal levels signal level 1 dBSPL Signal level 2 dBSPL signal level 3 dBSPL frequency dependent delay show freq dep delay add OES2CCD for 2cc coupler subtract OEG show LTASS
107. vices Show all Values Fig 12 Calibration menu For every device to be calibrated an entry must be created using Calibration gt New device in the main menu This menu item opens an entry window to specify the calibrated device A category of device must be chosen from the combo box on top Type manufacturer and serial number are entered into the text boxes below The entries are confirmed by clicking on the Save and close button gt Calibrated Device JO NI Usage Manufacturer m Serial Number cancel Fig 13 Input window for information about calibrated device SE 17 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids Before a device can be calibrated or used it must be selected with Calibration gt Select device in the main menu Clicking on this item opens a window with a table of all entered devices Select Calibrated Devices Efel ES Manufacturer Type Serial No Date and Time Calib value File name CN ef Mic Default 1 10 2007 6 24 PM null D HearingsCall IEC 126 G R A S 404G 1234 1 11 2007 11 004M null D Hearing Call EC 126 Default 1 10 2007 6 24PM In D Hearing Call E IEC 711 Default 1 10 2007 6 24 PM null D Hearing Calz ed Source Default 1 10 2007 6 24 PM mall D Hearing Calz ES Coil Default 1 10 2007 6 24 PM null D Hearing Cal4 Select Cancel E Fig 14 Window for selection of calibrated device
108. vironment The noise measured with hearing aid switched off should be significantly lower than the measured equivalent input noise because otherwise the noise must be assumed to be at least partly generated by the coupler microphone 42 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids The following table lists all available parameters in the generic measurement of equivalent input noise Name Type Value Explanation battery voltage V Double 0 Supply voltage provided at ANLG AUX OUT Overrides the general setting O V means use voltage from general setting lower cutoff freq Hz Double 175 Lower band limit for wideband noise measurement upper cutoff frequency Hz Double 5650 Upper band limit for wideband noise measurement gain test input level dB Double 60 Level for measurement of gain dBSPL or dB re 1 mA m integration time s Double 1 Integration time for noise measurement predelay s Double 0 Pre delay between sweep Step and measurement trigger allows for settling of the DUT e g AGC induction Boolean False False Acoustic input True Inductive input number of HFA frequencies Parameter count 1 Number of frequencies averaged for gain measurement HFA frequency 1 Hz Double 1600 check closed input Boolean True True Repeat noise measurement with sealed input and check level difference max level difference dB Double 1 Maximum acceptable noise level differen
109. w shows a preview of the report as it will be printed or appear in an exported PDF file If the report comprises more than one page the pages can be browsed using the buttons Lk ken Fi To open the print dialog for installed windows printers click To open a file selector for export of the report to PDF WORD EXCEL or Rich Text format click ES The scale of the document in the preview can be adjusted with ak Page Width Whole Page 400 30105 005 150 100 To we 50 NN bc a Customize Ku mor d Dee EE Fig 99 Scale menu of the preview window 1401 9353 12 03 62 E 3 1401 9353 12 03 Acoustic Measurements on Hearing Aids Storing and Loading Curves Measured curves can be stored from and loaded into the graph of a measurement macro see above This allows easy import into spreadsheets as well as direct comparison of curves measured at different times or places Measured curves can also be stored in a R amp S UPV limit file for use as a limit curve either in a R amp S UPV sweep graph or in the graph of a R amp S UPV K7 window This allows e g to derive tolerance schemes from golden devices The measured curve can be arbitrarily shifted before being stored Shit Curve by T oo de area Gei Fig 60 Input window for defining a shift of a measured curve for storage as limit curve Measured curves can be stored out of the results overview to an ASCII file by right
110. way will be reported in the same graph This allows e g to measure responses depending on settings of the hearing aid and to report them in a field of curves Store Loaded Curve Data to results includes curve data which is loaded with the button Load Curve to the result database such that the loaded curves will appear in the diagram of the respective report Battery voltage allows to specify the supply voltage for the hearing aid If a supply voltage is specified in the parameters of a measurement the general setting is overridden This allows to measure response curves for different supply voltages within one sequence Report settings allows to define the type of information which should appear in the reports For details on reporting see section 8 below 16 E 3 4 Calibration 1401 9353 12 03 Acoustic Measurements on Hearing Aids Calibration Devices R amp S UPV K7 allows to simultaneously store calibration values for multiple individuals of the same type This allows to switch devices without the requirement for re calibration However regular re calibration is recommended in order to assure the correct function of the used devices gt Hearing Aid Tests File Data Calibration Measurement St EIS ERT Y Selective ag Microphone Ear Simulator Pistonphone Sound Source Se Induction Coil Current Sense Resistor UPY Calibration Info Mew Device Select Device Show Selected De

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R&S®UPV-K7 User Manual