User Manual
Contents
1. NTi Audio TalkBox INTI AUDIO NTi Audio TalkBox features human head like dimensions A build in combination of solid state generator and DSP ensures highest playback accuracy and lowest sample freguency deviations with minimized jitter effects The internal precision loudspeaker is individually calibrated to achieve a very flat frequency response in the typical freguency range of the human voice Each TalkBox is individually egual ized and calibrated and has an excellent freguency response accuracy of 1 dB over the relevant freguency range The radiation characteristic complies with the ITU T P51 in wide ranges The perfect frequency response and the precisely correct playback sampling rate are specifically important to minimize systematic errors when performing STIPA measurements The IEC60268 16 standard specifies a sound pressure level for a speaker simulator of 60 dBA in 1 meter distance The NTi Audio TalkBox levels are calibrated to comply with this standard To avoid operating failures the TalkBox has no volume control The exact positioning the NTi Audio TalkBox in front of a microphone at the place where a real human speaker would be is easy using a conventional mic stand A universal mic stand mount is available at the bottom of the box INTi AUDIO Output Mode Selector CF Card Line In Line Out Output Mode Line In Line Out CF Card N TEST Fa KA D Mute LinkOut Power LED Select Track Switch P2. 25 INT AUDIO Typical Freguency Response Chart NTi Audio TalkBox e 60 dBSPL 1 m 66 dBSPL 0 5 m 70 PP Cr 69 E pk 68 1 dB Tolerance 1 67 a T D 66 3 OT 65 1 O 5 64 E ep D 63 e 3 62 o 92 61 10 Hz 1 kHz 10 kHz Frequency 26 You may stick this table onto your NTi Audio TalkBox nm OO Om Dlololsilo o KI OLIN STIPA Standard Pink Noise White Noise sine 1 kHz Male Speaker German Male Speaker English Delay Test Chirp STIPA Lombard Pink Noise White Noise sine 1 kHz Male Speaker German Male Speaker English 6OdBASPL Q 1m 60dBASPL Q 1m 60dBASPL Q 1m 60dBASPL Q 1m 60dBASPL Q 1m 6OdBASPL Q 1m 7OdBASPL 1m 7OdBASPL 1m 7OdBASPL 1m 7OdBASPL 1m 7OdBASPL 1m 7OdBASPL 1m INTi AUDIO 27 INTI AUDIO 28 INTI AUDIO 29 INTI AUDIO 30 LL CL 4P 008 d
3. gt 30 dBu flashing Error indication which might be caused by e The CFCard is not plugged in or damaged e he file serialnumber xxx cal is not found on the card e he selected audio file is not available damaged or of wrong format This switch allows the following selections This position selects the input signal from the input connector Line In to the speaker 17 F These positions select the individually stored audio tracks from the CF Card in hexorder form 1 9 A B C D E F The red Clip LED is activated when the Line In mode is selected Select Track switch set to 0 Reduce the input level when the Clip LED flash es INTI AUDIO XLR input connector for external audio signals The Line In mode Select Track switch 0 enables to play an external audio sig nal with the NTi Audio TalkBox In the Line In mode the Play LED indicates an input signal gt 30 dBu and the Clip LED is activated at input signals gt 15 dBu The DSP based equalization introduces a signal propagation delay of 59 ms be tween the Line In and the acoustical output Consequently and in order to guaran tee synchronicity between the acoustical output and the line output for delay time measurements the latter is also delayed by 59 ms Using the balanced line out the TalkBox operates as a signal generator The stored signal of the CF Card or any connected signal from the Line In connector is directly send to th
4. English 60dBASPL Q 1m 60dBASPL Q 1m 60dBASPL 1m 60dBASPL 1m 60dBASPL 1m 60dBASPL 1m 7OdBASPL 1m 7OdBAspL 1m 7OdBAspL 1m 7OdBAspL 1m 7OdBAspL 1m 7OdBAspL 1m INTI AUDIO Any hot swap of the CF Card is not supported In case the CFCard has been removed during operation it shall be returned and the mains power shortly disconnected to initiate the operation again e wav file e Sample rate 44100 Hz e Mono e 16Bit e PCM linear quantization The first character of wav file name matches the output selector switch position So the audio files names are e g 1anyName wav or 8anyName wav whereby anyName may describe the content of the wav file for example 1 STIPA wav The maximum length of the filename is 8 digits e g oooooxx wav The CFCard keeps additionally the individual calibration data of the NTi Audio TalkBox The file is named xxx cal The CFCard is labeled with the serial number of the corresponding TalkBox so the CFCard and the NTi Audio TalkBox do have the same serial number guaranteeing accurate and calibrated operation The serial number on the CFCard must match with the serial num ber of the NTi Audio TalkBox otherwise the acoustical parameters of the TalkBox are out of specifications INTi AUDIO The green Play LED indicates the following continuously e The audio signal is replayed on e At Line In mode Select Track switch set to 0 and input signal
5. e Position the NTi Audio TalkBox at the typical speaker position in front of the speaker s microphone e Connect the external power supply After approx 10 seconds the start up process is completed and the NTi Audio TalkBox is ready for operation e Selected the required track number with the Track Selection Switch e Output Mode Set the selector switch to e Speaker for acoustical output e LineOut for electrical output signal or e Stop the signal using the Mute position The output level of the provided standard STIPA test signals is 60 dBA Q 1 m dis tance to the speaker Additionally further test signals at other levels are provided please see the CF Card Track List for details 14 INTI AUDIO At increasing environmental noise the human persons speaking into the micro phone at PA systems gradually increase the sound pressure level of their speech The standardized speaking level is 60 dBA Our ears recognize a speaking level in crease of 10 dBA as subjective double sound pressure level To verify the PA system operating in good order at this physical effect the following shall be carried out e Follow the prior described measurement procedure using the STIPA test signal with 60 dBA Q 1m e Select the STIPA test signal with 70 dBA Q 1m and verify the operation of the PA system no clipping shall occur INTI AUDIO CF Card We recommend to use original CF Cards NTi Audio 600 000 087 only Other CF Cards may not be co
6. product without writ ten authorization by NTi Audio Date 15 September 2005 Signature i i echo Position of signatory Technical Director CE 24 Waveforms Line Out Line Input CF Card Acoustical Flatness Acoustical Output Level Power Supply External Mute Mounting Dimensions LxWxH Weight Operating Temperature INTi AUDIO e Up to 15 different signals e Waveforms can be added changed by the user e Factory signal set NTi Audio STIPA Test Signal TNO verified Reference Speech Signal White Noise Pink Noise Delay Test Signal Sine 1 kHz e XLR balanced 100 Ohm unbalanced 50 Ohm e Maximum output level 18 dBu 1 kHz file with 60 dB Q 1 meter typically 11 dBu e XLR balanced 38 kOhm e Max input level 18 dBu acc to EBU R68 ITU R rec 645 e nternal delay from XLR input to speaker 59 ms e 256 MB included FAT32 formatted NTi Audio 600 000 087 e Wav file format 16 Bit 44 1 kHz mono STIPA band levels in axis e typ lt 0 5 dB 24 C e typ lt 1 0 dB Q 10 C 30 C e STIPA 60 dBAsPL Q 1 m 0 5 dB acc to IEC60268 16 e STIPA band sensitivity gradient 0 07dB C average e Others see track list in user manual e 10 18 VDC 10 Watt e External switching power supply included 110 V 240 V Jack 3 5 mm 1 8 floating switch required Mic Stand 5 8 with Adapter to 3 8 150 x 150 x 175 mm 5 9 x 5 9 x 6 9 inch 3 5 kg 0 to 45 C 32 to 113 F
7. CE Declaration Of COnDTOFImlty siens 7 Technical Data TalkBox INTi AUDIO INTI AUDIO Congratulations and thank you for buying NTi Audio s TalkBox a product specially suited as test signal source for speech intelligibility measurements This product pro vides in combination with an NTi Audio Acoustic Analyzer the all in one solution for fast and comprehensive STIPA testing of a complete public announcement system Additionally various other test signals are supported for further test applications We are convinced you will enjoy using it This manual describes the NTi Audio TalkBox operation and functions in detail Fur ther application information can be found on the web site The NTi Audio TalkBox product package includes the following items e NTi Audio TalkBox e Protection Cover mounted with NTi Audio lanyard e CFCard with test signals amp individual calibration data e Mains Power Supply amp Power Cord e CD NTi Audio TalkBox backup copy of Memory Card e Carrying Pouch e User Manual INTI AUDIO NTi Audio TalkBox greatly simplifies the acoustical feed of the STIPA intelligibility test source signal into closed sound reinforcement systems It presents the stan dardized voice like acoustical signal emission simulating a human talker according to IEC 60268 16 combined with a TNO certified speech intelligibility signal at stan dardized levels TalkBox
8. INTiI AUDIO INTI AUDIO TalkBox INTI AUDIO Headquarter 423 239 6060 bx info nti audio com Americas 1 503 684 7050 americasQnti audio com China 86 512 6802 0075 chinaQnti audio com Czech 420 2209 99992 czech nti audio com Japan 81 3 3634 6110 japan nti audio com South Korea 82 2 6404 4978 korea nti audio com www nti audio com NTi Audio is an ISO 9001 2008 R Net 7 certified company NTi Audio AG Release 1 15 7e Apr 2013 All information subject to change without notice C AIl rights reserved Minirator is a registered trademark of NTi Audio IM XL2 EXEL and TalkBox are Made in trademarks of NTi Audio Switzerland Index 1 Introduction iuo imaam v Rx nS ERU Us takka aka t nak da 2 Overview eeeeeseesseeeeenee nnne nnne nni nna naar aad a d aan SUC MAAS AAS AM la na ou NT Audio TalkBox Controls ss Side amp Rear Panel LS 3 How to use the NTi Audio TalkBox FOCUS a seated Output Level eee Lombard ENESCU ua inanan Aae SENNA ENANA CFCard iii MY OWE FIIS siniraan Tatsi ec 4 Battery Option mernnrnnnannnnnnnnnnnnnnannnnanni 5 Related Products eren n nmn 6 Further Information eese PV CES Lire ION MM Vaman y COMANO RII ue nan Service and Repairs sesiesiissriuesrirrriierirerrrrrrrreen SAS dunce oe tati aa a a Calibration Certificate serseri
9. ct type and enter the serial number e Confirm with Register e Now your product is listed in the table My Products 21 INTI AUDIO NTi Audio guarantees the function of its products and the individual components for a period of one year from the date of sale During this period defective products will either be repaired free of charge or replaced These guarantee provisions do not cover damage caused by accidents transporta tion incorrect use carelessness non original accessories the loss of parts opera tion with non specified input voltages adapter types or incorrectly inserted batter ies NTi Audio accepts no responsibility for subsequent damage of any kind The warranty will be voided by carrying out repairs or services by third parties who are not part of an approved NTi Audio Service Centre Consumers may have legal statutory rights under applicable national laws relat ing to the sale of consumer products This warranty does not affect your statutory rights You may assert any legal rights you have at your sole discretion If your product is not functioning correctly or is damaged please contact the local NTi Audio partner for assistance If the product needs to be returned for service kindly follow the service guidelines at www nti audio com service 22 INTI AUDIO In order to avoid any problems during the operation of the instrument follow the notes listed below e Remove the transport protectio
10. e Line Out connector not egualized INTi AUDIO External Mute Input NTi Audio TalkBox Label be ae CE ot PR PH PP Swiss Less rm se a Mure sun Made NTI TalkBox S No TNN039 Select Track 0 i for Line Input Serial Number m z c o 3 o2 v DC In e A8L OL ut 9d NTi Audio TalkBox Side amp Rear Panel The External Mute Input provides the possibility to mute the NTi Audio TalkBox from a remote position such as by using a mobile phone or radio control devices Clos ing an external switch connected with this 3 5mm jack connector connecting dip amp ring will mute the audio signal equally to the output selector switch in mute posi tion This feature is of great help e g at STIPA measurements in large buildings The TalkBox handles an input voltage range of 10 18 VDC An external power supply for worldwide operation is supplied as standard The wide input voltage range al lows the operation even from a battery pack INTI AUDIO Using the NTi Audio TalkBox as acoustical test source for STIPA measurements provides two major advantages e Extended test coverage e Easy to handle test signal injection The human head sized NTi Audio TalkBox replaces and simulates a real speaker when measuring speech intelligibility Such a setup considers the entire signal path including the used microphone the acoustical characteristics of the speaker s cabin and existing background noise
11. ge the battery for min 5 hours prior its first use Connect the TalkBox power supply to the IN con 18 INTI AUDIO nector of the Battery pack The connectors are compatible The red charge LED will light up during the charge process Once the battery is full the red LED will go off and the rightmost green Full LED will go on The DC output of the battery pack is disabled during the charge process and thus not usable Connect the DC output of the battery pack with the DC input of the TalkBox using the provided connection cable and the G G4 adaptor As soon as the connection is established the NTi Audio TalkBox starts running For storage or when not used for a longer period of time please disconnect the battery cable preventing the complete discharging of the battery To check the charge indication press the black charge test button and the three green LED will indicate the charge level Battery type Li lon Battery Input voltage 12V 24V DC 1A max Output voltage 9V 2A max Capacity 39 Watt hours nominal Dimensions 153 mm x 93 mm x 23mm 6 x 3 72 x 0 9 Weight 400g 0 8lbs Idle mode Standby Electrical output 15 hours STIPA Output on 60dBep 12 hours STIPA Lombard Output on 70dBepy 7 hours INTI AUDIO 5 Related Products 20 Se eos O 88STI B5 bdB Lar Bo Ud XL2 Audio and Acoustic Analyzer The XL2 analyzer forms the unique combination of a state of the art Sound Le
12. lay LED Clip LED NTI Audio TalkBox Controls The output selector switch offers the following three modes D The audio signal is available at the speaker and the Line Out The audio signal is muted no signal at Line Out and speaker LineOut The audio signal is available at the Line Out The speaker amplifier is muted INTI AUDIO The red Power LED indicates the following fast The power up sequence is in process about 10 seconds flashing continuously The TalkBox is powered on and ready for operation on slow The outputs are muted by flashing e the Output Mode Selector or e the External Mute Input INTi AUDIO The supplied CF Card needs to be pushed into the provided slot Up to 15 test sig nals can be stored on the CFCard The size of the test signals is as big as required for the looped operation The selected signal is further processed and seamlessly looped by the built in DSP The CFCard is FAT32 formatted and can be read written by any PC MAC with CFCard reader The TalkBox repeats the selected audio track as long aS mains power is connected Besides the STIPA test signal the CFCard contains the following additional wave forms CF Card Track List STIPA Standard Pink Noise White Noise sine 1 kHz Male Speaker German Male Speaker English Delay Test Chirp Oo 1 GIR NN gt STIPA Lombard Pink Noise White Noise sine 1 kHz Male Speaker German NM O0 wW Male Speaker
13. mpatible with the NTi Audio TalkBox thus e g wav files are not replayed For operation the calibration file xxx cal has to be copied on a new CF Card You may format the CF Card as follows e Connect the CFCard to the PC the card is recognized e g as letter z e Select Run from the Windows Start menu see picture below e Insert the term format z fs FAT32 a 512 x e The CFCard is formatted to FAT32 with 512 byte cluster size and can now be used with the NTi Audio TalkBox Administrator Internet i4 My Documents Internet Explorer i My Recent Documents gt 34 E mail Microsoft Office Outlook 9 My Pictures Sport E My Music Type the name of a program Folder document or Internet resource and Windows will open it For you Cancel Browse Help and Support Adobe Acrobat 6 0 9 Professional ari au Programs gt LR off shut Down Format CF Card INTI AUDIO You can load your own audio files onto the CFCard and replay with the NTi Audio TalkBox Kindly observe the following details The NTi Audio TalkBox requires the calibration data to meet the product specifica tions A back up copy of the calibration data is on the NTi Audio TalkBox CD en closed containing the original data of the CF Card e wav file e Sample rate 44100 Hz e Mono e 16 Bit e PCM linear quantization The first character of the wav file name matches the output selector switch posi tio
14. n So the audio files names are e g nr anyName wav whereby nr is the Talk Box selection switch position and anyName describes the content of the wav file for example 9 myfile1 wav or A myfile2 wav FE myfile3 wav The maximum length of the filename anyName are 8 digits The test signal level shall be physically tested by using an NTi Audio Acoustic Ana lyzer and the source data adjusted to requirements The minimum length of your wave file is 100ms INTI AUDIO NTI Audio 600 000 086 For enabling mains power independent operation a re chargeable Li lon Battery pack is available for the Talk T Box Its size has been optimized to perfectly fit to the NT side of the TalkBox The battery comes complete with E all the connectors adaptors and works perfectly with ELT the TalkBox power supply for charging An integrated 1 charge indicator shows the remaining energy in the bat tery Supplied Welcroe strips simplify the mounting of the battery to the TalkBox A fully charged battery drives the TalkBox for more than 7 hours under worst case conditions e he battery pack contains Li lon batteries Please recycle the bat tery pack in accordance with local regulations e Only charge the battery with the TalkBox power supply Store the battery on a dry place e Never attempt to connect the output of the battery to the output of an external device As the battery comes only partially charged please char
15. n cover prior using the TalkBox e The NTi Audio TalkBox includes a high precision electromechanical transduc er with open air gap Dust could degrade the function of this transducer Please take care to use and store the NTi Audio TalkBox only in clean environ ments e Head this manual thoroughly prior using this product e Use the product for the intended purpose only e Do not disassemble the product e Never use the product in a damp environment Your NTi Audio instrument has been carefully tested during production and cor responds to the specifications listed in Technical Data Calibration certificates for new products are optional NTi Audio recommends annual calibration of the products after the pur chase The calibration provides documented and traceable measurement ac curacy and confirms that your NTi Audio product meets or exceeds the published specifications The calibration and adjustment procedures fol low the documentation and traceability requirements of the standard EN ISO IEC 17025 For calibrations kindly follow the service guidelines at www nti audio com service 23 INTI AUDIO We the manufacturer NTi Audio AG Im alten Riet 102 9494 Schaan Liechtenstein Europe hereby declare that the product NTi Audio TalkBox released in 2005 conforms to the following standards EMC Directives 2004 108 EG Harmonized Standards EN 61326 1 This declaration becomes void in case of any changes on the
16. vel Meter a com prehensive Acoustical Analyzer as well as a pow erful Audio Analyzer The wide range of function alities are tailored for challenging applications in Installations Live Sound Studio Broadcast and Environmental Noise measurements Measurement microphones are available for acoustical measurements The microphones are 48V phantom powered and include an electron ic data sheet The Automated Sensor Detection ASD of the XL2 Analyzer automatically reads this data i e the microphone model and cali bration data This promotes faster setup and en sures accurate measurements STIPA Measurement Option for XL2 The STIPA analyzer option allows the reli able measurement of the speech trans mission index according to the latest IEC standards within 15 sec Besides the single value STI or CIS test result a detailed view of the modulation indices and individual band level results is provided INTi AUDIO Register your instruments at My NTi Audio and benefit from the following pos sibilities e Free updates for your instruments e Activation of optional product functions e Premium access to downloads e Receive application and product news e Faster worldwide support e Tracing support in case of loss or theft e Calibration support e Open the web page http my nti audio com e You are prompted to login or create your My NTi Audio account e The web page My NTi Audio Products opens e Select the produ
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