for R&S®UPV Audio Analyzer
Contents
1. R amp S UPV K4 remote control option This option enables users to operate the R amp S UPV by remote control over either a LAN USB or IEC IEEE bus interface in line with IEC 625 IEEE 488 The commands used conform to the SCPI guidelines to the extent possible R amp S UPV K1 universal sequence controller This option enables users to create and execute measure ment sequences turning the R amp S UPV into an automatic tester As a result small test systems can be implemented cost effectively since no additional control PC is required For further information refer to page 15 Validated options enable users to perform acoustic measurements of mobile phones in line with standards that are applicable worldwide R amp S UP Z1MF XLR BNC adapter set R amp S UPV Z48 and R amp S UP Z3 connecting cables R amp S UP Z9 cable set The R amp S UPZ audio switcher can be controlled directly from the R amp S UPV Ne a Sa eae SS R amp S UPV U1 150 Q modification The modification changes the source impedance of the analog generators from 200 Q to 150 Q BNC monitoring outputs The standard audio monitoring output includes a head phone output and an integrated loudspeaker via which the input signal as well as filtered or weighted signals can be monitored Optionally the available connectors can be ex panded to include two BNC female connectors by adding the R amp SPUPV U2 option It then becomes possible to2. e Maintenance Rohde amp Schwarz R amp S UPV Audio Analyzer 23 About Rohde amp Schwarz Service that adds value Rohde amp Schwarz is an independent group of companies 1 Worldwide specializing in electronics It is a leading supplier of solu Local and personalized tions in the fields of test and measurement broadcasting TEU se OC radiomonitoring and radiolocation as well as secure Uncompromising quality RE EE h ae ere ee communications Established more than 75 years ago Rohde amp Schwarz has a global presence and a dedicated service network in over 70 countries Company headquar ters are in Munich Germany Environmental commitment 1 Energy efficient products 1 Continuous improvement in environmental sustainability 1 ISO 14001 certified environmental management system Certified Quality System ISO 9001 Rohde amp Schwarz GmbH amp Co KG www rohde schwarz com Regional contact 1 Europe Africa Middle East 49 89 4129 12345 customersupport rohde schwarz com 1 North America 1 888 TEST RSA 1 888 837 87 72 customer support rsa rohde schwarz com 1 Latin America 1 410 910 79 88 customersupport la rohde schwarz com 1 Asia Pacific 65 65 13 04 88 customersupport asia rohde schwarz com 1 China 86 800 810 8228 86 400 650 5896 customersupport china rohde schwarz com
3. 150 Scan 0 x of 1 fy 3fq fs 5fq Frequency Hz The R amp S UPV can perform a broad scope of measurements on both analog and optionally digital interfaces Level or S N measurement with RMS peak or quasi peak weighting integration times that are automatically adapted to the input signal produce high measurement speeds Selective level measurement The center frequency of the bandpass can be swept or coupled to the generator frequency or to the input signal SINAD or THD N measurement Measurement of the sum of all harmonics including noise Measurement of total harmonic distortion THD Analysis of the harmonics either individual ones all of them or any combination of them Modulation distortion analysis in line with IEC 60268 3 Second and third order intermodulations are measured Intermodulation measurement in line with the difference frequency distortion method with measurement of the second or third order inter modulations Dynamic intermodulation measurement In line with the DIM standard DC voltage measurement Frequency phase and group delay measurement Polarity test to check for any polarity reversal of a signal path Crosstalk measurement Waveform function for displaying the measurement signal in the time domain displays of slow time sequences can be com pressed e g in order to determine the settling of com pander or AGC circuits FFT analysis with a wide
4. rotary knob which is of enormous advantage when mak ing adjustments Softkeys at the bottom of the screen permit fast access to changing functions e g with graphical display The R amp S UPV can also be operated using an external key board and or mouse The easy to understand operating concept using the fa miliar Windows functions from the PC world and the simi lar handling of analog and digital measurements allow us ers to quickly master instrument operation Everything at a glance Multiple measurement diagrams can be arranged in any manner preferred on the screen analysis in the frequency and time domains can be displayed simultaneously Funct Chi THD N Mm Ejj Waveform loxi 2 na ce K 2 0 F Time s 100 920 0 70 60 Scan f0 zor Sweep Graphi 0 x FFT Graphi ol x 5 Level Ch1 V 1 0 1 2 25 0 2 5 LevMon RMS Ch1 dBr Phase FFT Level Ch1 dB Scan 0 xl of 1 100 1k 10k 5k 10k 15k Frequency Hz Scanl Sd oft Frequency Hz Graphics can be sized with vertical and horizontal cursors markers and limit traces make evaluation easier Multiple traces can be superimposed in user defined colors background colors etc can be selected to meet any requirement Amplitude RMS dBr 15 20 50 100 200 500 1k f2 2806k 5k 10k 20k ScanJ 9 of 14 Frequency Hz Lim AAW All measurement results at a glance The measurement results for one or bo
5. there is a strong trend toward formats that transmit more than two data chan nels At the same time numerous data formats are being developed To accommodate all of these applications the R amp S UPV B42 universal serial interface option was devel oped It can be inserted into one of the two slots on the rear of the R amp S UPV audio analyzer The generator and analyzer can be configured indepen dently of each other and they can be synchronized both Internally and externally master or slave mode Up to four data lines can be handled they can contain up to 256 audio data packets slots per frame in time multiplex One or two test signals can be output simultaneously in any number of user selectable slots and up to eight audio signals from any number of user selectable slots can be analyzed simultaneously Data formats up to 32 bit can be processed with sampling rates of 1 kHz to 400 kHz The bit sequence slopes and offset can be flexibly adjusted A de tachable probe permits short low reflection connections directly to the chips to be tested all common logic levels are supported In summation the user enjoys flexible digi tal audio interfaces that can be connected to practically all audio chips currently in use The R amp S UPV B42 consists of plug in card connecting cable and probe see figure ti LA Fer i Ree Bae FESSES DAIRE PLLA LOUGID PDM bitstream analysis R amp S UPV K421 option T
6. Jitter and interface test R amp S UPV K22 option This option enables the user to analyze the physical pa rameters of the digital audio interface The R amp S UPV K22 option expands the functionality of the R amp S UPV B2 option Analysis 1 Measurement of the jitter amplitude and display of the jitter signal in the frequency and time domains 1 Measurement of the input pulse amplitude and of the sampling frequency 1 Measurement of the phase between audio input and reference input 1 Analysis of the common mode signal of the balanced input frequency amplitude spectrum etc Generation 1 The clock of the output signal can be jittered by applying a sine or noise signal with variable amplitude 1 A common mode signal can be superimposed on the balanced output 1 If digital audio data is generated jitter or common mode interferences can be superimposed on this data stream 1 An input signal with jitter superimposed can be output jitter free Test of audio ICs with I S interfaces R amp S UPV B41 option A close look at how the various modules and chips are in terconnected inside such audio equipment reveals primar ily serial digital data interfaces For several years now the inter IC sound bus 12S bus has found widespread use It is used throughout the world for dual channel device internal audio data transmission numerous audio A D and D A converters support this format The R amp S UPV B41 option which is ins
7. for higher transmission bandwidths and is also certified for acoustic measurements R amp S UPV K7 K71 software for hearing aid tests After the R amp S UPV K7 option has been installed in the R amp S UPV the audio analyzer can test hearing aids in com pliance with standards The tests conform to IEC 60118 parts 0 1 2 and 7 as well as ANSI 3 22 therefore cover ing all specified tests If in addition measurements with speechlike test sig nals in line with IEC 60118 part 15 need to be performed R amp S UPV K7 can be extended with the R amp S UPV K7 1 pro gram package When necessary the R amp S UPV Z7 cable set for connect ing the audio analyzer with an acoustic measurement chamber is available Further information is provided in the Hearing aid measurements using the R amp S UPV Audio Analyzer PD 5214 5878 92 application brochure Rohde amp Schwarz R amp S UPV Audio Analyzer 17 Acoustic measurements on mobile phones using the R amp S UPV K9 K91 K92 option package The acoustic transmission and reproduction quality of a mobile phone is the most important task In dally use Therefore this quality must be checked as part of quality assurance or sample checks during production as well as for type approval The R amp S UPV audio analyzer and options described here determine the acoustic characteristics of these phones as specified by the bodies responsible for acoustic tests In the type approval of m
8. processed by the R amp S UPV Dual channel measurements can for example also be used to determine input and output characteristics simultaneously therefore saving time 1 Up to 16 analog channels can be measured simultaneously This saves a significant amount of time such as when testing multichannel amplifiers The fast frequency response measurement achieved by using FFI analysis provides a critical edge particularly during the highly time critical frequency response measurement example measurement of a frequency response with approx 900 frequency values in 150 ms Long calibration intervals owing to the large portion of digital T amp M engineering contribute to high instrument availability Remote control capability over the IEC IEEE bus is particularly indispensable in large production facilities In the R amp S UPV audio analyzer special attention was also paid to data traffic via the IEC IEEE bus Especially in production scenarios the R amp S UPV66 model is the optimum solution The omission of a display keypad and CD DVD drive definitely saves money yet the instrument can be manually operated at any time by attaching a monitor PC keyboard and mouse Therefore the source of errors can be quickly located If any problems arise in production R amp S UPV K1 universal sequence controller This option enables users to create and execute measure ment sequences turning the R amp S UPV into an automatic tester As a resul
9. shifting between digital audio and reference output 1 The format of the generated channel status data can be selected independently of the selected interface where the choices are professional and consumer 1 Reference XLR and synchronization input BNC at the rear of the Instrument this allows the generator to be synchronized with the digital audio reference signal DARS in line with AES11 or with a word clock 1 Bit or word synchronous sync signals are generated that permit an accurate representation of the digital audio signal on an oscilloscope preamble eye pattern signal symmetry Superimposed noise etc 1 Generator and analyzer can be operated with clock rates of 32 kHz to 192 kHz the generator can also generate these clocks internally Dig Analyzer Protocol Channel 1 Channel 2 BytevBit Format r efo fos o ooon fersa poo fears po fpes o o Format Audio Mode TES Audio Mode Copy Bit of2 Pre emphasiz Pre emphasis a Source Freg Lack Chan Status Mode Of 7 Sample Frequency Category Code TSB Channel Mode L bit 1r Weer Bits Aux l Audio Bits Word Length Source Humber Channel Mumber Sample Frequency 4 0 Alignment Level 4 Clack Accuracy Multichannel Mode Max Word Length Channel Number Vvord Length Reference Signal Orig Sample Frey Sample Frequency Error Flags Frequency Scaling Pehl parity lock CRE validity Error Flags Ph party 1 The clock rat
10. variety of capabilities described in detail on page 6 Record function permits the long term recording of a signal on the hard disk so that It may be analyzed in detail at a later time Measurement of time difference between output and input signal this capability enables users to determine the delays of equalizers mixing con soles etc R amp S UPV K6 expanded analysis function Third octave analysis and 1 n octave analysis for acoustic measurements rub amp buzz transfer and coherence func tions as well as impulse response and Interchannel delay expand the range of applications see page 17 Psycho acoustic measurement methods PESO PEAO and POLOA in line with ITU recommenda tions are described on page 1 7 Rohde amp Schwarz R amp S UPV Audio Analyzer 5 Up to 256k points can be evaluated with the FFT analysis function in the undersample mode a frequency resolution of down to 0 2 mHz can be achieved Analyzer Function IOl x FFT Graphi Undersample Comp Factor fz Span Resolution Meas Time 349 525 s Level Monitor Off X Input Monitor Peak Freq Phase Frequency Meas Time Fast Prec Freq Settling Off X Waveform Vv Show Meas Mode Jlndersemple 7 Comp Factor jes Trace Length 640 000 Trigger Source fiers v 0 100 Prot Analysis J7 Shaw Scan 0 xl of 1 FFT Level Ch1 dBV Frequency Hz The FFT analysis function expands the THD
11. 01 7309 02 1401 7750 02 1402 1156 02 1401 9301 02 1402 1004 02 1402 0008 02 1402 0108 02 1402 0608 02 1424 2003 02 1424 2203 02 1401 7609 02 1401 7709 02 1411 3306 02 1411 3458 02 1411 3106 02 1096 3283 00 1120 8004 12 1120 8004 13 Service options Extended Warranty one year R amp S WE1 Please contact your local Extended Warranty two years R amp S WE2 Rohde amp Schwarz sales office Extended Warranty three years R amp S WES Extended Warranty four years R amp S WE4 Extended Warranty with Calibration Coverage one year R amp S CW1 Extended Warranty with Calibration Coverage two years R amp S CW2 Extended Warranty with Calibration Coverage three years R amp SPCW3 Extended Warranty with Calibration Coverage four years R amp S CW4 CDMA2000 is a registered trademark of the Telecommunications Industry Association TIA USA 22 Fro m re S a p The Rohde amp Schwarz network in over 70 countries ensures p optimum on site support by highly qualified experts User risks are reduced to a minimum at all stages of the to S e rVI Ce a aaa finding purchase Technical startup application develooment integration At your doorstep Ee estroontoai Sales level a i Sales locations D n ME Si k Service level Whe er a E Backup service ne le 2 oe Area support center i Local service center Calibration and maintenance with standardized automatic calibration systems Calibration and maintenance
12. 2003 02 SCREEN k OCE WINDOW gt 4 gt BBB ECGS WINBAR MODIFY HIDE CLOSE Co HELP SAVE LOAD PRESET Vwa R amp S UPV Audio Analyzer Benetits and key features All test signals and measurement functions in a single box 1 Generation of a wide variety of analog and by using the R amp S UPV B2 B41 B42 options digital test signals 1 Extensive measurement capabilities on analog and also when the R amp S UPV B2 B41 B42 options are installed digital interfaces 1 Efficient as well as multichannel FFT analysis with a resolution down to the mHz range 1 User programmable filters adaptable to the measurement task at hand in a matter of seconds 1 Everything included no peripherals required gt page 4 Largest variety of interfaces offered in a single instrument 1 Analog generator outputs as standard 1 Dual channel analyzer with analog inputs as standard 1 Expansion to 8 or 16 measurement channels R amp S UPV B48 option 1 Digital audio interfaces R amp S UPV B2 option 1 Digital protocol analysis and generation R amp SSUPV K21 option 1 Jitter and interface test R amp S UPV K22 option 1 Test of audio ICs with S interface R amp S UPV B41 option 1 Virtually any audio circuit adaptable using the universal serial interface R amp S UPV B42 option 1 PDM bitstream analysis R amp S UP K421 option 1 For both the generator and analyzer all interfaces can be
13. Hz to 40 kHz 0 1 uV to 50 V RMS wideband RMS selective peak S N DC FFT THD THD N SINAD Mod Dist DFD DIM polarity waveform frequency phase group delay XLR male floating grounded balanced unbalanced short circuit proof balanced RMS sine open circuit unbalanced RMS sine open circuit base unit sine R amp S UPV B1 option sine base unit R amp S UPV B3 option balanced unbalanced optical R amp S UPV B2 option R amp S PUPV K21 option R amp S UPV K22 option 0 1 mV to 20 V 0 1 mV to 10 V 0 1 Hz to 80 kHz 10 Hz to 185 kHz sine multisine sine burst sine burst Mod Dist DFD noise arbitrary waveform polarity FM AM DC play WAVE files stereo sine DIM square XLR female male transformer coupling 110 Q BNC grounded 75 Q TOSLINK 1 2 or both 8 to 24 30 kHz to 200 kHz professional format AES3 and consumer format IEC 60958 same as with analog device digital audio protocol jitter common mode 25 pin D Sub male BNC for external sync clock signal 1 2 or both 16 24 32 bit per channel WO SZ 6 75 kHz to 400 kHz same as with analog device Specifications in brief Universal serial interface R amp S UPV B42 option Interface Data lines Channels Slot length Number of audio bits Sampling rate Operating modes Output signals measurement functions Universal serial interfaces with PDM bitstream analysis R amp S UPV K421 option Measure
14. N measurement in this case the automatic marking of the harmonics makes nonharmonic parts visible at a glance FFT Level Ch1 dB 1 1 10k 20k Frequency Hz 0 50 00 50 0 Scanl0 I off Efficient as well as multichannel FFT analysis with a resolution down to the mHz range The R amp S UPV offers several FFT capabilities each of them is designed for two or multichannel applications and can be applied to the filtered input signal FFT The FFT measurement function is used when high require ments are placed on the dynamic range Up to 256k points can be selected in binary steps where the points are eval uated in double precision mode Post FFT The post FFT can be used for example in THD and intermodulation measurements to analyze the distortion products In greater detail Undersample FFT A special feature is the undersample FFT R amp S UPV K6 op tion required Here digital preprocessing of the measure ment signals which reduces the bandwidth is used to increase the frequency resolution by a factor of 2 to 1024 This yields a resolution of down to 0 2 mHz It should be noted that this does not involve a zoomed graphical display but instead a measurement with true higher resolution 1 n octave analysis A further special case is the 1 n octave analysis R amp S UPV K6 option required which is primarily used for acoustic measurements In fractions of an octave the bins of an FFT are combi
15. R amp S UPV Audio Analyzer Compact instrument for all audio measurements D ROHDE amp ScHwarz DIGITAL AUDIO OUTPUT UPV AUDIO ANALYZER UNBAL Q MANGAR MOOY NOE QOS j NHP j SAW LOAD PRESE OIR Cc d WINDOW ANALOG Test amp Measurement Product Brochure 05 00 R amp S UPV Audio Analyzer At a glance Although audio signals are mainly processed digital ly nowadays analog technology will remain a viable alternative that is continuously being enhanced Therefore both analog and digital measurements must be performed The R amp S UPV audio analyzer is designed precisely for this purpose The R amp S UPV enables users to perform virtually all mea surements that are necessary in the audio world frequen cy response measurement total harmonic distortion THD displays spectral displays analysis of digital interfaces and much more Ihe generator is just as versatile It can be used to create any conceivable signal from sinewave and noise signals up to multi sinewave signals The R amp S UPV is an all in one instrument with an inte grated control PC making it easy to transport Since the instrument comes factory ready it merely needs to be un packed and switched on before being put into operation Peripherals are therefore not required Optional modules and software expansions that can be integrated into the instrument open up a broad scope of further applicat
16. Short Mame f APSO OHz T Funct Chi dBr 50 100 20 50 100 200 500 1k Scar 0 of 1 Frequency Hz 2k 5k 10k Filters can be programmed sim ply by entering a few parameters which takes only a few seconds they can be used both in the ana lyzer and the generator Rohde amp Schwarz R amp S UPV Audio Analyzer 7 Largest variety of interfaces offered in a single instrument Suy a Mee TIMER P a SZ Qa iz frx Vea aj F bap Be af Vi lty e 2 amp 4 S ay 5 gt x gt L 91 99 90 09 00 sii amp a SER kp a amp Kak 2 ag De Analog generator outputs as standard 1 Balanced outputs floating e g for avoiding hum loops 1 The generator outputs can be connected Internally to the analyzer inputs so that changes In measurement tasks can frequently be handled without any external recabling being necessary Dual channel analyzer with analog inputs as standard 1 Dual channel balanced inputs with high common mode rejection and various impedances that are common in studio equipment lines with phantom powering can be measured 1 Due to the wide dynamic range and the powerful autorange function tests are possible even on class D amplifiers without inserting expensive external filters as Is necessary with conventional audio analyzers The analog analyzer can be expanded to 8 or 16 measurement channels R amp S UPV B48 opti
17. adjusted independently of one another and they may be used together in any combination gt page 8 Convenient operation throughout 1 Owing to the intuitive user interface operation can be learned in next to no time 1 All measurement results at a glance 1 Effective online help functions gt page 12 Powerful and fast 1 High measurement speed throughout the system 1 Especially suitable for use in production 1 R amp S UPV K1 universal sequence controller for entire measurement sequences gt page 14 Options for further applications 1 R amp S UPV B1 low distortion generator for extremely pure analog sinewave signals and for expanding the frequency range Second analog generator R amp S UPV B3 for generating different sinewave signals on the two analog output channels Simultaneous pickup of measurement values for up to 16 analog channels with the R amp S UPV B48 option eight channels each 192 kHz R amp S UPV B2 digital audio I O with digital audio interfaces in line with AES EBU and in consumer format Universal digital interfaces R amp S UPV B42 or in I7S format R amp S UPV B41 for connecting digital audio Circuits PDM bitstream analysis R amp S UPV K421 as an add on to the R amp SPUPV B42 option Expanded analysis functions with the R amp S UPV K6 option PESO measurement R amp S UPV K61 option for analyzing speech signals in line with psycho acoustic methods PEAO measurement R
18. amp S UPV K62 option for analyzing broadband audio signals in line with psycho acoustic methods POLOA measurement R amp S UPV K63 option for analyzing broadband speech quality in line with psycho acoustic methods Standard compliant measurement of hearing aids using the R amp S UPV K7 and R amp S UPV K71 options R amp S SUPV K9 K91 K92 K98 K101 option package for acoustic measurements on mobile phones R amp S UPV K4 remote control option for remote control of the R amp S UPV audio analyzer R amp S UPV K1 universal sequence controller for creating and executing measurement sequences Change of the source impedance from 200 to 150 Q R amp S UPV U1 option BNC monitoring outputs R amp S UPV U2 option XLR BNC adapter set R amp S UP Z1MEF option R amp S UPZ audio switcher for switching up to 128 channels to the inputs and outputs gt page 16 PESO PEAOQ and POLOA are registered trademarks of OPTICOM Dipl Ing M Keyhl GmbH Germany Rohde amp Schwarz R amp S UPV Audio Analyzer 3 All test signals and measurement functions in a single Dox The generator of the R amp S UPV audio analyzer generates a variety of signals here a 32 tone signal Frequency amplitude and phase can be adjusted FFT Graphi 500 m Signal z tones FFT Level Ch1 dBV Scan jo zl J of 1 The waveform function shows the time characteristic of the measured signal in this case a si
19. con nect an oscilloscope for example R amp S UP Z1MF XLR BNC adapter set Two XLR male to BNC and two XLR female to BNC adapt ers make the use of unbalanced cables easier Connecting cables The R amp S UPV B41 and R amp S UPV B48 options are fitted with 25 pin D Sub connectors 1 The R amp S UP Z3 S cable routes the RX Data RX BitClk RX FSync TX Data TX BitClk TX FSync and TX MasterClk lines from the D Sub connector to separate BNC male connectors 1 The R amp S UPV Z48 cable for connecting the eight analog measurement channels of the R amp S UPV B48 provides the junction from D Sub to eight XLR female connectors Modern mobile phones are often connected to the audio analyzer via the phone s headset jack The R amp S UP Z9 cable set covers all common pin assignments for different connection requirements Audio switcher If multiple DUTs channels have to be connected by means of cables such as during production the R amp S UPZ au dio switcher is the solution The switcher is connected directly to the R amp S UPV audio analyzer and is operated from the control panel via an USB interface The eight channel R amp S UPZ is available as an input version and out put version and it can be cascaded to support up to 128 channels Further information is provided in the R amp S UPZ Audio switcher PD 0758 1170 32 data sheet Rohde amp Schwarz R amp S UPV Audio Analyzer 19 specifications in brief Specif
20. erted at the rear of the base unit provides the R amp S UPV audio analyzer with I7S interfaces for generator and analyzer The transmit chip uses either internal master or external slave synchro nization This is important because In more complex sys tems with multiple transmitters and receivers It must be possible to centrally generate the system clock to ensure interference free data transmission Depending on the ap plication S formats with different word lengths are used The R amp S UPV B41 option can be adjusted to all common word lengths of 16 bit 24 bit and 32 bit where the num ber of audio bits used can be adjusted independently of the word length In addition to the standard I S format special formats are also Supported The R amp S UPV B41 is connected to the DUT via a 25 pin D Sub male connector A cable with a junction to seven BNC male connectors is available as the R amp S UP Z3 option R amp S UPV B41 option I S interface R amp S UPV B42 option universal serial interface a R amp S UPV B41 ii R amp S UPV B42 OLOO u 000 Analog interfaces j R amp S UPV B2 option digital audio interfaces 10 Virtually any audio circuit adaptable using the universal serial interface R amp S UPV B42 option Although numerous digital audio applications can use dual channel data transmission
21. es of the analyzer and the generator are independent of each other which allows clock rate converters to be analyzed 1 Audio words of 8 bit to 24 bit can be selected independently for the generator and the analyzer Digital protocol analysis and generation R amp S UPV K21 option This software option expands the functions of the R amp S UPV B2 option to include a conclusive analysis and the generation of additional digital data 1 Analysis of the channel status data the data is output in binary format and evaluated on the basis of the professional or consumer format in line with AES3 or IEC 60958 1 Generation of channel status data and of the validity bit the channel status data can be entered either in binary format hex format or in the professional or consumer format in line with AES3 or IEC 60958 1 Simultaneous measurement of the clock rate and display of interface errors that occur e g parity errors 1 Protocol analysis can be carried out simultaneously with other measurement functions ByytevBit ori Off IPES Of5 of leis qir 2 fot Pre omen sone fo fem o mo festa hoa fas 0 ooon000 fonemnet 5 0 n4 0 oul el aa The generation and analysis of pro tocol data in the digital data stream is extremely easy In addition to the binary data the lock CRO validity evaluated data is output in either professional or consumer format Rohde amp Schwarz R amp S UPV Audio Analyzer 9
22. f the base unit provides the R amp S UPV with S inter faces for generator and analyzer For further information see page 10 R amp S UPV B42 universal digital interfaces The R amp S UPV B42 option expands the R amp S UPV audio analyzer by adding universal digital audio interfaces with which the parameters of the digital formats can be set with great flexibility Virtually all common audio chips can be connected R amp S UPV K421 PDM bitstream analysis The PDM bitstream analysis option makes It possible to analyze the audio contents of digital 1 bit data streams in PDM format For further information about R amp S UPV B42 and R amp S UPV K421 see page 11 R amp S UPV K6 extended analysis functions The rub amp buzz measurement enables users to determine production errors in loudspeakers In next to no time by measuring the interference signals in the frequency range above the usual distortion products The third octave analysis and 1 n octave analysis are im portant measurements throughout the field of acoustics The levels are determined simultaneously in up to 32 third octave bands and 128 single tone bands in line with the requirements of class O of IEC 1260 The undersample FFT see page 6 Is also part of this option The transfer and coherence functions are used to deter mine the transmission behavior of a DUT with the aid of music speech or noise signals The impulse response dis play is based on these fu
23. fol x Anir1 Stopped Anlr2 Stopped Gen Running Trace Autoscale Cursor Marker ao VEEE Config Lim Violation Sweep Stopped Operation can be learned in next to no time The R amp S UPV features an intuitive user interface with Windows as the operating system The large screen plays a key role not only for displaying measurement results All settings on the large screen are made in panels containing all interrelated functions and settings Five different screen displays are available The user can switch between these screens merely by pressing a key Each panel can therefore be quickly accessed without jam ming the screen Panel size can be changed and the panels may be moved to any position on the screen Basic settings of the instrument such as audio interface configuration are grouped in separate panels once the settings are made they can be hidden for the remaining measurement To make the user s task easier only function blocks that are currently required are displayed all other function blocks remain in the background Example Sweep pa rameters are not displayed in the generator panel until the sweep function has been selected The entire instrument can be operated from its front panel The rotary knob plays a major role here Users can move the cursor around Inside a panel on the screen with only one hand and select a function by pressing the rotary knob Numeric values can be varied directly by using the
24. ge is displayed for every menu that may require the entry of a number Furthermore all higher level parameters are taken into account e g the sampling rate for measurements on digital interfaces Protection against operating errors Entries outside the permissible value range are not accept ed such entries are automatically changed to their permis sible minimum or maximum value Rohde amp Schwarz R amp S UPV Audio Analyzer 13 P f d f t High measurement speed throughout the system owe U d n d S When the R amp S UPV audio analyzer was designed special attention was paid to the speed of the overall measure ment system 1 Time critical and computation intensive process steps are carried out by digital signal processors the PC Is largely used for instrument operation and to display results The R amp S UPV can also perform the complex measurement functions simultaneously on both channels this alone cuts the time required for stereo measurements in half as compared with other analyzers on the market The digitally implemented measurement routines optimally adapt the measurement time to the input frequency this yields a significant increase in measurement speed particularly in the case of frequency sweeps Owing to digital signal processing the internal setting and settling times can be kept shorter than with exclusively analog instruments In addition they are taken into consideration in the measurement routine This yield
25. h the methods licensed by the Opticom GmbH company in Erlangen Germany Standard compliant testing of hearing aids using the R amp S UPV K7 and R amp S UPV K71 options The measurement method referred to as the perceptual evaluation of speech quality PESO was published in 2001 as Recommendation ITU T P 862 by the International Tele communication Union It is used to measure the quality of speech signals that are transmitted at a low bit rate us ing high compression psycho acoustic coding methods R amp SSUPV K61 option The measurement method referred to as the percep tual evaluation of audio quality PEAQ was published in 1998 as Recommendation ITU R BS 1387 by the Inter national Telecommunication Union It is used to measure the quality of broadband audio signals e g music that are transmitted at a low bit rate using high compression psycho acoustic coding methods R amp S UPV K62 option To measure dual channel analog signals the R amp S UPV B3 option Is additionally required Equipped with the R amp S UPV K63 option the R amp S UPV audio analyzer now also offers the measurement method referred to as the perceptual objective listening quality analysis POLOA which was published in 2011 as Rec ommendation ITU T P 863 by the International Telecom munication Union POLOA a technology update to PESO was developed to meet the voice quality testing require ments of mobile network services It offers measurements
26. his software package expands the R amp S UPV B42 option to include the measurement of digital audio signals that are transmitted in line with pulse density modulation This transmission mode is used for example for operating MEMS microphones sigma delta converters also use this 1 bit data stream For both the generator and analyzer all interfaces can be adjusted independently of one another and they may be used together in any combination The interfaces for the R amp S UPV generator and analyzer can be adjusted independently of one another Therefore DUTs with virtually any combination of interfaces can be tested A D and D A converters can be directly connected This is also true for complicated DSPs or format converters which for example require a 384 kHz clocked S format at the input and supply an AES EBU signal with a sam pling rate of 96 kHz to the analyzer In addition to the analog interfaces that are always present and the optional standard digital interfaces on the front panel of the R amp S UPV audio analyzer two further interface cards can be plugged into the slots at the rear of the in strument Therefore up to four different interfaces can be made available in one instrument without any additional equipment being necessary Ever more complex chips demand a measuring instrument that can easily be adapted to a wide variety of data formats The R amp S UPV audio analyzer when used with the R amp S UPV B42 optio
27. ications in brief Dual channel analog analyzer Inputs 2 channels Frequency range Voltage range Measurement functions XLR female balanced unbalanced measurements possible with R amp S UP Z1MF XLR BNC adapter XLR pin 1 floating grounded slectable AC DC coupling selectable bandwidth 22 kHz 40 kHz 80 kHz 250 kHz RMS sine base unit R amp SPUPV K6 option R amp S UPV K61 option R amp S UPV K62 option R amp S UPV K63 option Eight channel analog inputs R amp S UPV B48 option Inputs 8 channels Frequency range Voltage range Measurement functions Analog generator Outputs 2 channels Voltage Frequency range Output signals Digital analyzer generator Digital audio interfaces R amp S UPV B2 option Connectors Channels Number of audio bits Sampling rate Format Output signals measurement functions I S interface R amp S UPV B41 option Connector Channels Word length Number of audio bits Sampling rate Output signals measurement functions 20 RMS sine DC 10 Hz to 21 76 kHz 40 kHz 80 kHz 250 kHz 0 1 uV to 110 V RMS wideband RMS selective peak quasi peak S N DC FFT THD THD N SINAD Mod Dist DFD DIM polarity waveform frequency phase group delay rub amp buzz 1 n octave analysis undersample FFT impulse response transfer and coherence inter channel delay RESO PEAQ POLOA 25 pin D Sub female balanced AC DC coupling selectable DC 20
28. ions oof UPV AUDIO ANALYZER DC 250 kHz DIGITAL AUDIO OUTPUT Level Ch1 V 12 5m Time s 15m 17 5m 20m The R amp S UPV features an intuitive user interface Windows operating system The large screen plays a key role not only for displaying measurement results All set tings are made in panels that contain all interrelated func tions and settings Since the operating philosophy is easy to understand and since analog and digital measurements are performed in a similar manner users can quickly mas ter instrument operation The instrument features scalable graphical windows that can be moved around on the screen as needed provid ing all measurement results at a glance Results can be displayed in realtime for one or both channels and can op tionally be expanded to a maximum of 16 channels Multi ple measurement functions graphics are available simulta neously For example analyses in the frequency and time domains can be displayed at the same time With graph ics results can be read off using vertical and horizontal cursors and limit lines or stored measurement results can be superimposed on them or compared with them Key facts Suitable for all interfaces analog digital and combined 1 Simultaneous display of multiple measurement functions 1 Sampling rate up to 400 kHz 1 User programmable filters for analyzer and generator 1 Compact instrument with integrated PC 1 Slots for future options 1146
29. is Extended Analysis Functions Software for PESO Measurement Software for PEAO Measurement Software for POLOA Measurement Software for Hearing Aid Measurements Hearing Aid Speech Tests Base Software for Mobile Phone Tests UMTS GSM Mobile Phone Tests CDMA2000 Mobile Phone Tests Background Noise Control Software for R amp S UPV K91 92 Background Noise Measurements for R amp S UPV K91 92 System components Cable Set for R amp S UPV K7 Cable for R amp S UPV B48 XLR BNC Adapter Set 2 male 2 female 7S Cable for R amp S UPP B2 UPV B41 Mobile Phone Headset Cable Set to R amp S UPV 19 Rack Adapter Audio Switcher Input Audio Switcher Output R amp S UPV R amp S UPV66 R amp S UPV B1 R amp S UPV B2 mises IPAS S38 R amp S UPV B41 R amp S UPV B42 R amp S UPV B48 R amp S UPV U1 R amp S UPV U2 R amp S UPV K1 R amp S PUPV K21 R amp S UPV K22 R amp S UPV K4 R amp S UPV K421 R amp S UPV K6 R amp S UPV K61 R amp S UPV K62 R amp S UPV K63 Roo ORY R amp S UPV K71 Row UP Wake R amp S UPV K91 Rises WIEN EW R amp S UPV K98 rises UEY 0 RES URAZA R amp S UPV Z2Z48 R amp S UP Z1MF R amp S UP Z3 Inter UR Z9 R amp S ZZA 41 1 eS UEZ R amp S UPZ 1146 2003 02 1146 2003 66 1146 5202 02 1146 4306 02 1146 4806 02 1146 5402 02 1146 5802 02 1402 2200 02 1146 1507 02 1402 1704 02 1401 7009 02 1401 7809 02 1401 7909 02 1401 9001 02 1402 1104 02 1401 9201 02 14
30. ment channels channel mode mono channel mode stereo Bitstream clock rate Bitstream clock duty cycle Downsampling factor Sampling rate Number of audio bits Measurement functions FFT analysis Frequency range digital analog bandwidth 22 kHz 40 kHz 80 kHz 250 kHz Dynamic range digital R amp SPUPV B2 option digital R amp S UPV B41 B42 option analog bandwidth 22 kHz 40 kHz 80 kHz analog bandwidth 250 kHz Noise floor digital R amp S UPV B2 option digital R amp S UPV B41 B42 option analog bandwidth 22 kHz 40 kHz 80 kHz analog bandwidth 250 kHz FFT length Window functions probe with female connector strips 1to4 1 or 2 signals in up to 256 slots per frame 8 bit to 256 bit OOS 0 85 kHz to 400 kHz master slave with numerous sync modes same as with analog instrument plus jitter generation 1 to 4 mono channels data lines 1 to 4 1 to 2 stereo channels data lines 1 and 2 512 kHz to 12 8 MHz 40 to 60 1 4 8 16 32 64 1 28 256 2 kHz to 200 kHz Sto 32 same as with analog analyzer DC to 0 5 x sampling rate DC to 22 5 kHz 43 5 kHz 87 kHz 250 kHz 170 dB 220 dB 120 dB 100 dB 7 0 elle 220 dB 140 dB 120 dB 512 1k 2k 4k Sk 16k 32k 64k 128k 256k points rectangle Hann Blackman Harris Rife Vincent 1 3 Hamming flat top Filters Weighting filters A weighting C weighting CCIR 1k weighted CCIR 2k weighted CCIR unweighted CCITT C message DC noise highpass deem
31. n installed is optimally designed for this requirement Rohde amp Schwarz R amp S UPV Audio Analyzer 11 Convenient operation throughout The large screen provides a straightforward display of all important set tings and states of the R amp S UPV audio analyzer Five virtual displays screens are available for better arrangement of the large number of pos sible panels and display windows W Rohde amp Schwarz Audio Analyzer UPY Screen 5 D UP Setups Demo setups START set W Rohde amp Schwarz Audio Analyzer UP Screen 4 D UP Setups Demo setups START set W Rohde amp Schwarz Audio Analyzer UPY Screen 3 D UP Setups Demo setups START set W Rohde amp Schwarz Audio Analyzer UP Screen 2 D UP Setups Demo setups START set W Rohde amp Schwarz Audio Analyzer UP Screen 1 D UP Setups Demo setups START set File Edit Screens Instruments DispConfig Displays Sequence Utilities Windows Help Analyzer Function Jol x Numeric Display Function RMS RMS SIN Sequence Meas Time Auto Notch Gain Off Filter Off Fitter Off Fitter Off Fnct Setting for Bargraph lel Show Post FFT IV WinFFTSize 16k Window Rite Vincent 2 gt Level Monitor RMS X Input Monitor Peak Freq Phase Frequency Ef Meas Time Fast Prec tehel reliehiclichse ul Level Ch1 V ul Freq Settling jOff v Waveform Vv H Scan 0 oft Time s Generator Config ojx Generator Function fe al x Analyzer Config a
32. nctions These functions can also be used for measuring the inter channel delay for example to determine the time delay of two channels during active transmission Speech and audio quality measurements PESQ R amp S UPV K61 option PEAQ R amp S UPV K62 option and POLOA R amp S UPV K63 option Psycho acoustic coding methods use the characteristics of the human ear and remove signal sections that have no effect on auditory perception before transmission To de velop suitable test methods a large number of recorded audio samples with various speech and music examples were used These recordings were compressed using a variety of cod ers and therefore different quality levels and degraded by introducing typical network transmission interferences A large number of test listeners rated these samples in a series of acoustic tests based on the standard scale for au dio quality ranging from 1 poor to 5 excellent The development of PESO for speech signals and PEAQ for broadband audio signals provides methods that com pare the original undegraded signals reference signals with the degraded signals measurement signals and then output objective measured values that correlate very well with the average of the listening test results The lat est method POLOA was developed primarily to handle the advanced coding and transmission methods for mo bile phones The R amp S UPV offers all these measurements in line wit
33. nd start measuring When an audio analyzer is operated using an external PC the computer itself the monitor or the interface con nections can emit a level of disturbance that impedes the measurement of the audio DUT In contrast the R amp S SUPV s EMC properties including the integrated PC have been tested and therefore meet all requirements placed on a measuring instrument No conventional PC offers such extensive shielding measures which include magnetically shielded AC power transformers or filter plates in front of the display Sweep Graphl 20 Filter Fitter 01 Paseh Lo sooo Hz 1200 00 Hz roms Hz n6 Hz Jeo o000 aB Fassb Upp Stoph Loy 20 topb Upp Attenuation Delay 0 02592 z Another aspect worth mentioning The PC is included in the purchase price of the R amp S UPV 1 Integrated hard disk and CD DVD combo drive 1 Connectors for keyboard mouse monitor and printer 1 Four USB connectors 1 LAN interface for connecting to networks 1 Remote control via IEC IEEE bus USB or LAN 1 Further processing of measurement data with standard software possible Windows XP 1 All measurement results are available in common data formats making the transfer of graphics documents etc an easy task 1 Easy addition of functions and software expansions In the future 1 Automatic execution of measurement sequences or measurement routines by means of the universal sequence controller see page 15
34. ne burst Waveform Cixi Is Level Ch1 V Scan jo j Zio The generators of the R amp S UPV can generate a wide variety of analog and digital test signals Sinewave signal for level and THD measurements Dual channel sinewave signals Different signals are always possible on both digital output channels for the analog interfaces the R amp S UPV B3 op tion is required Two tone signal for modulation distortion analysis various amplitude ra tios can be selected continuous frequency adjustment is possible Difference frequency distortion for intermodulation measurements with continuous adjustment of both frequencies DIM test signal Squarewave signal with superimposed sinewave R amp S UPV B3 required in analog applications Multitone signals from up to 7400 frequencies with either identical or user selectable amplitude and phase the frequency spacing can be linked to the resolution used for the fast Fourier transform FFT which allows the frequency response of a DUT to be determined quickly and precisely in one shot Sine burst signal and sine2 burst with adjustable interval time and on time as well as us er programmable low level e g for testing automatic gain control devices Noise with various amplitude distribution functions e g for acoustic measurements Arbitrary signals Any voltage characteristic from up to 256k points can be generated With the play functi
35. ned in each case to yield a measure ment value where the fraction may be selected with an n value of 1 3 6 12 or 24 User programmable filters adaptable to the measurement task at hand in a matter of seconds The filters of the R amp S UPV are implemented as software This enables the user to define as many as necessary which is also beneficial for analog applications The most common weighting filters are already included as stan dard Additional filters can be programmed in only a few seconds after the type lowpass highpass bandpass bandstop notch third octave or octave filter frequency and attenuation have been entered Particularly in the case of special requests the strengths of the instrument concept become readily apparent Spe cial filters can be calculated using commercially available filter design programs The data record is transferred to the R amp S UPV and the required filter can be looped into the signal path As many as four filters can be combined Everything included no peripherals required The R amp S UPV audio analyzer is a compact instrument that already contains an integrated PC The disadvantages of audio analyzers that are controlled from an external PC can therefore be avoided The instrument is easy to transport and no additional key board monitor or other PC peripherals are needed The R amp S UPV comes ready to use right out of the box Users only need to unpack it switch It on a
36. obile phones The tests are checked and validated by an independent test house The package of options for mobile phone measure ments with the R amp S UPV audio analyzer consists of the R amp S SUPV K9 base software package and modules for the individual standards R amp S UPV K9x or R amp S UPV K1 0x The R amp S UPV K91 option covers all tests for UMTS and GSM phones in line with 3GPP TS 26 132 The R amp S SUPV K92 option is required when measuring CDMA2000 phones in line with the TIA 1042 and 3GPP2C S0056 0 standards 18 The R amp S UPV also supports measurements on mo bile phones using background noise tn line with ETSI ES 202 396 1 The following components are required 1 The R amp S UPP B8 eight channel generator in the R amp S UPP audio analyzer see R amp S UPP product brochure PD 5214 3846 12 processes the necessary noise signals for each individual loudspeaker to obtain the required homogeneous sound field 1 The R amp SPUPV K98 option allows the R amp S UPV audio analyzer to control and measure the sound field 1 The 3Q0UEST method R amp S UPV K101 option enables analyses in line with ETSI TS 103 106 and EG 202 396 3 and is used for measurements on mobile phones Operation always requires a combination of R amp S UPV K9 and at least one of the R amp S UPV K91 K92 options for de tailed information refer to the Acoustic Measurements on Mobile Phones PD 5214 5884 92 application brochure
37. on any test signals can be output from the hard disk e g speech or music signals provided as a WAV file AM and FM for sinewave signals DC voltage also with sweep function Squarewave signal R amp S UPV B3 option required in analog applications A user programmable filter and or equalizer with user selectable nominal frequency response can be inserted with most signals in order to compensate for the frequen cy response of the test setup for example An offset can also be added to the signals plus a dither with an adjustable level and different amplitude distribu tion can be added to the digital audio signals During the THD measurement all individual or any combination of harmonics can be measured Bargraphi iol x Numeric Display olx THD all di cht JO x Function THD v Meas Mode E di v Dynamic Mode Fast Prec Fundamental auto X Equalizer E Frit Settling for Bargraph Vv Show PostFFT M Show Level Monitor fort Input Monitor jor Freq Phase Off X Waveform T Show Prot Analysis 7 SHON x Analyzer Function 50 THD Ch1 dB 100 Scan 0 xl of 1 d1 d2 d3 d4 d5 d6 d7 d8 d9 Frequency Hz Even less common measurement functions such as the measurement of the dynamic intermodulation as seen here can be performed using the R amp S UPV audio analyzer Jol x Bargraph1 50 Funct Ch1 dB 100
38. on If the R amp S UPV B48 eight channel card is installed in one of the two slots on the rear the R amp S UPV audio analyzer is transformed into a fast multichannel analyzer for surround sound applications Since this option can be installed in the other slot as well up to 16 analog channels can be measured simultaneously With this option it is also possible to perform measure ments directly on class D amplifiers without using expen sive external filters Digital components with different data formats and clock rates are common in the world of profes sional audio equipment which re quires a measuring instrument that provides maximum performance at all interfaces Digital audio interfaces for professional studio operation and for the consumer electronics market R amp S UPV B2 option Digital audio equipment can be interconnected via stan dardized interfaces With professional equipment the AES EBU format has become standard with consumer equipment the S P DIF interface is used The R amp S UPV B2 option supports both areas 1 Balanced XLR unbalanced BNC and optical TOSLINK inputs and outputs for connecting consumer electronics equipment and professional studio equipment 1 The level of the balanced and of the unbalanced output can be adjusted so that the sensitivity of digital audio inputs can be determined Simulation of long cable lengths by using an integrated cable simulator 1 Adjustable phase
39. phasis J 17 50 15 50 75 preemphasis 50 15 50 75 IEC tuner jitter weighted rumble weighted unweighted highpass 22 Hz 400 Hz lowpass 22 kHz 30 kHz 80 kHz AES 17 User definable filters design parameters 8th order elliptical type C for highpass and types of filters file defined filters General data Rated voltage Dimensions WxHxD Weight with all options For data sheet see 0758 1306 22 and www rohde schwarz com lowpass also 4th order selectable stopband attenuation up to approx 120 dB selectable highpass lowpass bandpass bandstop notch third octave and octave filter any 8th order filter cascaded from 4 biquads defined in the z plane by poles zeroes or coefficients 100 V 120 V 220 V 230 V 50 Hz to 60 Hz 300 VA 465 mm x 197 mm x 495 mm 18 31 in x 7 76 in x 19 49 in 15 0 kg 33 07 b Rohde amp Schwarz R amp S UPV Audio Analyzer 21 Ordering information Base unit Audio Analyzer Audio Analyzer without display Accessories supplied Power cable Compact manual CD with operating manual service manual Hardware options Low Distortion Generator Digital Audio Interfaces AES EBU S P DIF Second Analog Generator IS Interface Universal Serial Interface Eight Channel Analog Inputs Modification 150 Q BNC Phone Out Software options Universal Sequence Controller Digital Audio Protocol Jitter and Interface Test Software for R amp S UPV B2 Remote Control PDM Bitstream Analys
40. rement values for up to 16 analog channels with the R amp S UPV B48 option eight channels each This option can be installed in one or both of the slots at the rear This makes the R amp S UPV audio analyzer a fast multichannel analyzer that can pick up as many as 16 ana log channels simultaneously Two plug in cards of the R amp S UPV B4x option series can be operated si multaneously in the R amp S UPV e g for measuring digital audio chips In fact two R amp S UPV B48 options can be installed to process up to 16 ana log measurement channels at the same time 16 Fields of use include surround sound applications or multi channel amplifiers in the automotive sector Simultaneous testing of multiple DUTs can also increase throughput in production The measurement channels are connected via a 25 pin D Sub male connector to which conventional cable whips can be connected A cable with a junction to eight XLR fe male connectors is available as the R amp S UPV Z48 option R amp S UPV B2 digital audio interface This option contains the digital audio interfaces balanced unbalanced and optical for the standard sampling rates of 32 kHz to 192 kHz Pages 9 and 10 describe the option and its software expansions R amp S UPV K21 digital audio protocol and R amp S UPV K22 jitter and interface test in greater detail R amp S UPV B41 I S interfaces The R amp S UPV B41 option which can be inserted at the rear o
41. s stable measurements even without having to activate a settling function Settling function Repetition of measurements until the measurement value con sistently remains within a tolerance band The R amp S UPV66 the special model for use in production svstems offers the full flexibilitv of the standard model iy neas ii l ii a ki EL UTPUT 1146 2003K66 OUTPUT OFF GEN OVLD ANLR OVLD POWERON SWITCH OFF WAN Busy REMOTE 14 High measurement speed multichannel measurements and remote con trol capability are indispensable in production lines The long calibration intervals of the R amp S UPV assure high availability and reduce operating costs In the measurement of electro acoustical converters the test setup fre quently includes measurement microphones and loudspeakers whose specific frequency response must be compensated for during the mea surement In this case the filters and equalizer in the R amp S UPV are used Especially suitable for use in production Measuring instruments for production tests must meet a large number of requirements 1 High measurement speed is crucial in order to achieve high production throughput By making appropriate use of the instrument functions Go NoGo decisions can already be made in the R amp S UPV audio analyzer This reduces the turnaround time for the DUT even further Even complete parts of the analysis macros can be
42. t small test systems can be implemented cost effectively since no additional control is required Every manual operating step is recorded in SCPI record ing and then translated into a complete syntactically cor rect command line The command lines generated in this manner contain the instructions in a form that can be read IEC IEEE bus syntax in line with SCPI and is not simply a sequence of pressed keys This enables the user to set up user defined measurement routines without having to look up the command syntax each time This significantly reduces the effort necessary to create remote control rou tines and Internally executed macros Rohde amp Schwarz R amp S UPV Audio Analyzer 15 Options for further applications R amp S UPV B1 low distortion generator The low distortion generator is required for all applications where extremely pure analog signals are necessary or when an extended frequency range up to 185 kHz Is need ed Its inherent distortion is lower than the excellent values for the universal generator R amp S UPV B3 second analog generator This hardware option provides the R amp S UPV with a second analog output amplifier This also allows dual channel sine wave signals to be output on the two analog output chan nels Furthermore this option is required in order to gener ate the DIM signal and the squarewave signal as well as to play stereo WAV files for PEAO measurements Simultaneous pickup of measu
43. th channels and multiple measurement functions are displayed in realtime scalable graphical windows can be arranged anywhere on the screen When their size is changed the labels font sizes grid lines etc are automatically adapted Multiple measurement diagrams are simultaneously avail able so that analysis in the frequency and time domains can be displayed simultaneously for example With graphics results can be read off using vertical and horizontal cursors and limit lines or stored measurement results can be superimposed on them or compared with them The graphical capabilities range from trace displays and bargraphs through to spectrum graphics By using color profiles the user can determine the look of the measurement diagrams The settings can be differ ent for screen printer and file output so that for example a black and white printer can be used alongside a screen with color display Effective online help functions The R amp S UPV offers various help functions Context sensitive help HELP information either in German or English can be called up for any entry field by pressing a key When detailed information about a function is needed the integrated user manual is available The user can quickly navigate to the term in question by using the rotary knob or mouse Warning boxes These boxes which are clearly marked alert the user to settings that may be Incorrect Entry help The permissible value ran
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