Virtins technology VT RTA-168D User manual

VT RTA-168D Manual Rev. 1.5
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VT RTA-168D Manual
A Low-Noise Real Time Acoustic Analyzer, Sound Level Meter, Distortion
Analyzer, Polarity Tester …
Note: VIRTINS TECHNOLOGY reserves the right to make modifications to this manual at any time without
notice. This manual may contain typographical errors.

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TABLE OF CONTENTS
1 INSTALLATION AND QUICK START GUIDE..........................................................................................3
1.1 PACKAGE CONTENTS....................................................................................................................................3
1.2 HARDWARE CONNECTION DIAGRAM............................................................................................................4
1.3 HARDWARE DRIVER INSTALLATION.............................................................................................................5
1.4 MULTI-INSTRUMENT SOFTWARE INSTALLATION AND CONFIGURATION.......................................................5
1.4.1 Install Multi-Instrument.......................................................................................................................5
1.4.2 Start Multi-Instrument..........................................................................................................................5
1.4.3 Configure Multi-Instrument.................................................................................................................7
1.5 INPUT OF SOUND LEVEL CALIBRATION DATA AND ADJUSTMENT OF INPUT GAIN......................................10
1.5.1 Under Windows 8/8.1/10/11 ..............................................................................................................10
1.5.2 0dB Reference Vr...............................................................................................................................12
1.6 MICROPHONE FREQUENCY COMPENSATION ...............................................................................................13
1.7TWENTY MOST FREQUENTLY USED MEASUREMENT SETTINGS .................................................................16
1.8 MORE ACOUSTIC ANALYSIS FUNCTIONS AVAILABLE IN MULTI-INSTRUMENT PRO OR ABOVE..................19
1.9 LIST OF AUDIO TEST WAV FILES (AUDIOTESTCD.ZIP) .............................................................................19
1.10 OPERATION NOTES ...................................................................................................................................21
1.11 UAC2 CONTROL PANEL ...........................................................................................................................21
1.12 AUDIO AND ULTRASOUND ANALYSIS.......................................................................................................24
2 SPECIFICATIONS.........................................................................................................................................25
2.1 HARDWARE SPECIFICATIONS......................................................................................................................25
2.2 MULTI-INSTRUMENT SOFTWARE SPECIFICATIONS......................................................................................26
3 MULTI-INSTRUMENT SOFTWARE LICENSE INFORMATION ........................................................35
3.1 LICENSE TYPES...........................................................................................................................................35
3.2 LICENSE UPGRADE FROM ONE LEVEL TO ANOTHER...................................................................................35
3.3 SOFTWARE UPGRADE IN THE SAME LICENSE LEVEL...................................................................................35
4 WARRANTY...................................................................................................................................................35
5 DISCLAIMER.................................................................................................................................................36

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1 Installation and Quick Start Guide
1.1 Package Contents
A standard VT RTA-168D Package contains the following items:
1) USB Measurement microphone and its accessories (a windshield, a microphone clip and
stand)
2) USB cable (2 m)
3) CD (containing the copy-protected Multi-Instrument software)
The latest software can always be downloaded from www.virtins.com/MIsetup.exe.
4) USB hardkey (containing a Multi-Instrument Pro license)
5) Audio Test WAV files (containing a list of audio test tones and noises)
They can be downloaded at: www.virtins.com/AudioTestCD.zip and then burnt into a CD
or saved into a USB memory stick. They can also be generated directly from the Signal
Generator of Multi-Instrument.
USB Measurement Microphone
Windshield
Microphone Clip and Stand

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6) 1/8” TRS cable (1.8m)
7) Black Soft Pouch Case
8) Unique Sound Level Calibration Data (in CD)
9) Unique Microphone On-Axis and 90-degree Calibration Data (in CD)
1.2 Hardware Connection Diagram
Connect the corresponding ends of the USB cable to the USB measurement microphone and
a PC’s USB port. When this is complete, the blue LED lights up indicating that it is receiving
power.
Software Activation
The USB hardkey needs to be plugged into any USB port of the PC in order to activate the
Multi-Instrument software. Otherwise the software will run under the 21-day fully functional
free trial mode before the trial period expires.
Test Signal Generation
You can generate the test signals from the Signal Generator of Multi-Instrument. The USB
measurement microphone does not have any audio output channels, so you need to use your
computer’s built-in sound card or any other sound card for audio test signal output. The
quality of the test signals would depend on the sound card used. Generally, the built-in sound

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card of a laptop is good enough for generating quality test signals for magnitude frequency
response measurement of an audio system.
The 1/8” TRS cable provided in the product package can be used to connect the sound card’s
audio output (e.g. Line Out, Headphone, Speaker) to the AUX input of the audio system
under test.
Alternatively, you can play the test signals from an audio CD or a memory stick.
1.3 Hardware Driver Installation
The device driver installer is located in the Drivers\VTRTA168D directory in the CD. When
you install the Multi-Instrument software, a copy of the device driver installer will also be
installed in the software installation directory\Drivers\VTRTA168D. Two installers are
provided, RTA168D_DriverInstallerForWinXP_Vista.exe for Windows XP and Vista, and
RTA168D_DriverInstaller.exe for Windows 7 or later. Run the respective driver installer to
install the driver. After driver installation, the device will be supported by both sound card
MME and ASIO drivers in Multi-Instrument.
1.4 Multi-Instrument Software Installation and Configuration
Multi-Instrument is a powerful multi-function virtual instrument software. It supports a
variety of hardware ranging from sound cards which are available in almost all computers to
proprietary ADC and DAC hardware such as NI DAQmx cards, VT DSOs and so on. It
consists of multiple test instruments such Oscilloscope, Spectrum Analyzer, and Multimeter,
etc.
1.4.1 Install Multi-Instrument
Insert the Multi-Instrument installation CD into your computer’s CD-ROM drive and follow
the instruction on the screen to install the Multi-Instrument software. The installation file
can also be downloaded from www.virtins.com/MIsetup.exe.
1.4.2 Start Multi-Instrument
To start Multi-Instrument, on the Windows desktop, select [Start]>[All Programs]>[Multi-
Instrument]>[VIRTINS Multi-Instrument], or simply double click the MI icon.
If the software is started for the very first time after installation, it will prompt the user to
select a default device (see figure below). Select VT RTA-168D according to the hardware
device to be used.

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The default device can also be changed later via [Setting]>[ADC Device], [Setting]>[DAC
Device], and [Setting]>[Configure Hot Panel Setting Toolbar], or simply [Setting]>[Restore
to Factory Default]. However, if [Restore to Factory Default] command is executed, all
calibration data entered manually via [Setting]>[Calibration] after software installation
will be reset to the default values of the selected product. To avoid the loss of the
manually entered calibration data, you can save them as a calibration file first.
Otherwise, you will have to enter the unique calibration data that come with the
product package again.
In case the driver has not yet been installed, the software will prompt the user to install the
driver. Restarting program is required after that.

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After the default device is selected, the software will prompt the user to select a default color
scheme (Skin). The default skin can also be changed later via [Setting]>[Display].
The main window of the software will open after the above skin selection. The following
figure shows a typical screen layout (obtained by clicking the “OCT3” button in the Hot
Panel Setting Toolbar after the launch of the software). Please refer to the software manual
for detailed functions of the software. The software manual can be accessed via [Start]>[All
Programs]>[Multi-Instrument]>[VIRTINS Multi-Instrument Manual] (in PDF format) or
[VIRTINS Multi-Instrument Help] (in HTML format) on Windows Start menu, or
[Help]>[Software Manual] or F1 inside the software.
1.4.3 Configure Multi-Instrument
In Multi-Instrument, the menu items are enabled / disabled based on context. Many menu
items are disabled when the Oscilloscope or the Signal Generator is running. To do the
configuration, stop the oscilloscope first by pressing the green button at the upper left corner
of the screen (see figure below). The button will turn red once the Oscilloscope is stopped.

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1.4.3.1 Configure Sound Recording Devices for Multi-Instrument
The USB measurement microphone can be used with either MME or ASIO driver. ASIO
driver is recommended as it uses the sampling rate selected in Multi-Instrument directly and
bypasses the possible sampling rate conversion and audio signal enhancement by Windows,
which may otherwise alter the original samples and lead to measurement inaccuracies.
1.4.3.1.1 Using ASIO Driver
Go to [Setting]>[ADC Device], and select “Sound Card ASIO”in the “Device Model”field.
Then choose “miniDSP ASIO Driver” in the “Device No.” field (see figure below). This is
to configure the USB measurement microphone Umik-2 as the sound recording device for
the software.
Now, if you start the oscilloscope by pressing the red button at the upper left corner of the
screen, and then talk before the measurement microphone, you should be able to see your
“voices” in the Oscilloscope and Spectrum Analyzer.
1.4.3.1.2 Using MME Driver
Go to [Setting]>[ADC Device], and select “Sound Card MME”in the “Device Model”field.
Then choose “Line (UMIK-2)” in the “Device No.” field (see figure below). This is to
configure the USB measurement microphone Umik-2 as the sound recording device for the
software.

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Note that the displayed name of the USB microphone may vary a bit under different
Windows versions or with different USB ports.
Now, if you start the oscilloscope by pressing the red button at the upper left corner of the
screen, and then talk before the measurement microphone, you should be able to see your
“voices” in the Oscilloscope and Spectrum Analyzer.
1.4.3.2 Configure Sound Playback Devices for Multi-Instrument
The USB microphone does not have any audio output channels, but you can use your
computer’s built-in sound card or any other sound card for audio test signal output, if you
want to use the Signal Generator in Multi-Instrument to generate the test signals. To
configure the sound card for the Signal Generator, go to [Setting]>[DAC Device] and choose
the corresponding sound card’s name in the “Device No.” field. By default, Multi-
Instrument will use the computer’s built-in sound card for signal output. The “Device
Model”field should be set to “Sound Card MME”unless you want to use a sound card with
its own ASIO driver.
Now, if you press the Signal Generator button (see figure above), the Signal Generator panel
will be opened (see figure below). Press the red triangle button at the upper right corner of
the Signal Generator panel, you should hear a 1kHz test tone from the speaker or earphone
connected to the selected playback sound card. Press it again to stop the sound.

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1.5 Input of Sound Level Calibration Data and Adjustment of Input Gain
Sound Level Calibration is not required for those relative measurements such as frequency
response, THD, THD+N, IMD, etc.. It is required only if you want to measure the absolute
sound level.
The USB measurement microphone has been calibrated in the factory. The sound level
calibration data are provided in a separate sheet inside the product package. Please refer to
the calibration data sheet provided and enter the calibration data in the respective highlighted
fields in the Calibration Setting dialog box (see figures below). Note that different calibration
data are required for different Windows versions. The Calibration Setting dialog box is
opened via [Setting]>[Calibration] in Multi-Instrument.
You can adjust the sound level measurement range by adjusting the input gain of the USB
microphone through software.
1.5.1 Under Windows 8/8.1/10/11
Input of the Sound Level Calibration Data

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Note that the calibration data in the following figure are examples only, you should enter the
actual calibration data provided inside the product package.
Adjustment of Input Gain via Software
You can adjust the input gain by clicking the respective radio buttons beside the “Line In
100%”, “Line In 80%”, “Line In 60%”, “Line In 40%” and “Line In 20%” in the above
figure. It should be noted that the selection status of the radio button does not necessarily
reflect the actual input gain (For example, when you open the Calibration Setting dialog box,
if the selected radio box is “Line In 80%”, it does not necessarily mean the current input gain
is set at 80%.). The actual input gain is reflected by the “Mixer” status under the “Sound
Card Input Status” in the above figure. You can press the “Refresh” button to make sure the
status display has been refreshed.
The input gain is also adjustable in the Sound Recording Tab under Windows Control Panel.
You can access the Sound Recording Tab by clicking the “Windows Recording Control”
button (see figure below) in Multi-Instrument.
This will bring up the Sound Recording Tab (see left part of the figure below).

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If you right click “Line (Umik-2)” and select “Properties”, the right part of the figure above
will be shown. You can then adjust the input gain through the “Line” slider. It is
recommended that only 100%, 80%, 60%, 40% or 20% is used.
1.5.2 0dB Reference Vr
The “0dB Reference Vr”in the Calibration Setting dialog box is used to finally calibrate the
input voltage to dBSPL. The input voltage here should be considered as a relative value as
the actual input is not a voltage but a sound pressure. The “0dB Reference Vr”is the
parameter to be recalibrated if a sound level recalibration is necessary. To do the
recalibration, simply enter the actual sound level value into the “Actual Value”edit box and
the measured sound level value into the “Read Value”edit box, and then press the
“Calculate”button once. It should be noted that the Sensor Sensitivity is kept at 1V/V in his
method.
In case you want to display the measured raw data in Pa rather than Volt, then you should
enter the “actual”Sensor Sensitivity in V/Pa, which can be calculated using the following
formula:
Sensitivity = [“0dB Reference Vr”(in Volt)] / [Standard 0dB Reference (in Pa)]
where the Standard 0dB Reference for sound pressure level in air is 20 µPa (i.e. 2e-005 Pa)
and that in water is 1 µPa (i.e. 1e-006 Pa). If the “actual”Sensor Sensitivity is used, then the
standard 0dB reference should be entered into the “0dB Reference Vr”edit box. For
example, the following two methods are equivalent.
Method 1: [0dB Reference Vr] = 2.4e-006 (V) and [Sensor Sensitivity] = 1 V/V
Method 2: [0dB Reference Vr] = 2.0e-005 (Pa) and [Sensor Sensitivity] = 0.12 V/Pa

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1.6 Microphone Frequency Compensation
The measurement microphone in RTA-168 series has an extremely flat frequency response in
the audio frequency range. Generally, there is no need to compensate for the microphone
frequency response. However, a higher degree of accuracy can be achieved if the
microphone comes with a frequency response file or a frequency compensation file. The
difference between these two files is the sign of the gain values (in dB). For example, a gain
of 3dB in a frequency response file should have a gain of -3dB in its equivalent frequency
compensation file.
The USB microphone Umik-2 in RTA-168D comes with an individually calibrated Original
Frequency Response File RTA-168D.txt. “Original” means that it has exactly the same
format and contents as the calibration file provided by the microphone manufacturer. This
file is located in the CD directory “\Microphone Frequency Compensation File”. Please
copy this file to the “\fcf”directory under the root directory of Multi-instrument in the
hard disk (if the file already exists, overwrite it), so that you can use it later. This file is
also used by the default panel settings configured in the Hot Panel Setting Toolbar (The third
toolbar from the top) except the one labelled “Ultrasound”.
You can load the Original Frequency Response File by right clicking anywhere within the
Spectrum Analyzer window, selecting [Spectrum Analyzer Processing]> “Intra-Frame
Processing”> “Compensation 1”, changing the “Files of type”from “Frequency
Compensation File (*.fcf)”to “Original Frequency Response File (*.txt)”in the pop-up File
Open dialog box, and loading that file (see figures below). If you want to apply it to the
twenty most frequently used panel settings in the Hot Panel Setting Toolbar, you will need to
configure and save the corresponding panel setting files one by one. Luckily, this has already
been done for the default panel settings.

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The above frequency compensation file RTA-168D.txt is actually copied and renamed from
the original calibration file supplied by the manufacturer of Umik-2. Two original calibration
files are provided: one for 0 degree (on-axis) and the other for 90 degree. The RTA-168D.txt
is renamed from the 0 degree calibration file by default. Normally the 0 degree file should be
used in a mono or stereo system with the microphone pointing to the sound source while the
90 degree file should be used in a surround sound environment with the microphone pointing
upwards. These two original calibration files can also be found in the CD directory
“\Microphone Frequency Compensation File”. Their file names are something like
xxxxxxx.txt and xxxxxxx_90deg.txt where xxxxxxx is the serial no. labelled on the
Umik-2 microphone body.
Some Windows versions / editions come with some audio signal enhancement features which
are enabled by default. These features must be disabled through the Sound Recording Control
under Windows Control Panel to prevent them from altering the originally sampled data, as
shown below. One of the possible problems caused by these features is the unwanted
alteration of the frequency response of the setup. Using ASIO driver instead of MME driver
can avoid these problems.

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1.7 Twenty Most Frequently Used Measurement Settings
Multi-Instrument bundled with VT RTA-168 comes with many pre-configured panel setting
files. This saves you time to configure various parameters for some frequently performed
measurements by yourself. You can load these panel setting files via [Setting]>[Load Panel
Setting]. Furthermore, 20 most frequently used panel setting files are pre-configured in the
Hot Panel Setting Toolbar (The third toolbar from the top). You can load one of them by a
single mouse click. These 20 measurement settings are:
(1) Home: Default Setting
The factory default panel setting. It is equivalent to the [File]>[New] command.
(2) Ultrasound: Audio and Ultrasound Analysis
Unlike other pre-configured panel settings in this toolbar, the sampling rate of the
Oscilloscope is intentionally set to 192 kHz, which is the highest sampling rate supported by
Umik-2 microphone. Also, the 10 Hz ~ 20 kHz frequency response file RTA-168D.txt is not
configured in the Spectrum Analyzer in order to allow for a much wider frequency range,
which is theoretically from 0 to 96 kHz. Please note that the frequency response in the
infrasonic and ultrasonic ranges may not be as flat as that in the audio frequency range.
(3) OCT3: 1/3 Octave Analysis (Avg. 10)
Pink noise will be generated by pressing the start button of the Signal Generator. The pink
noise will be injected into the DUT (Device Under Test), and the response of the DUT will

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be captured and analyzed by the Oscilloscope and Spectrum Analyzer. A flat curve in the
Spectrum Analyzer would indicate a flat magnitude frequency response of the DUT. The
equivalent continuous sound level in dB will be displayed in the Multimeter window.
(4) OCT3ppn: 1/3 Octave Analysis
Same as OCT3, but periodic pink noise instead of ordinary (non-periodic) pink noise is used
as the stimulus. One advantage of using periodic pink noise is that its spectrum is ideally flat
under octave analysis even without inter-frame averaging.
(5) Polarity: Speaker, Microphone, Amplifier Polarity Tester with Crest Factor Check
A polarity test signal will be generated by pressing the start button of the Signal Generator.
Point the microphone close to the center of the speaker under test along its axis, and observe
the polarity of the captured pulse in the oscilloscope window. If the pulse goes positive
initially, then the polarity of the speaker under test is positive, and vice versa.
Positive Negative
(6) THD: THD,THD+N,SNR,SINAD,Noise Level, ENOB (Avg. 10 )
A 1 kHz (to be precise, a frequency very close to 1 kHz) sine wave will be generated by
pressing the start button of the Signal Generator. The sine wave will be injected into the DUT
(Device Under Test), and the response of the DUT will be captured and analyzed by the
Oscilloscope and Spectrum Analyzer. All the above parameters of the DUT will be measured
and displayed. This panel setting should be used only if the same sound card is used for
signal input and output.
(7) THDcd: THD,THD+N,SNR,SINAD,Noise Level, ENOB (Avg. 10 )
A 1 kHz sine wave will be generated by pressing the start button of the Signal Generator. The
sine wave will be injected into the DUT (Device Under Test), and the response of the DUT
will be captured and analyzed by the Oscilloscope and Spectrum Analyzer. All the above
parameters of the DUT will be measured and displayed. This panel setting should be used if
different sound cards are used for signal input and output, such as the case of RTA-168. It
should also be used if the 1 kHz test tone is played from an audio CD or a memory stick.
(8) IMDsmp: IMD SMPTE (60 Hz + 7 kHz, 4:1) (Avg. 10)
A 60 Hz and a 7 kHz sine waves mixed at an amplitude ratio of 4:1 will be generated by
pressing the start button of the Signal Generator. The mixed signals will be injected into the
DUT (Device Under Test), and the response of the DUT will be captured and analyzed by the
Oscilloscope and Spectrum Analyzer. The SMPTE IMD value of the DUT will be measured
and displayed.
(9) IMDdin: IMD DIN (250 Hz + 8 kHz, 4:1) (Avg. 10)
A 250 Hz and a 8 kHz sine waves mixed at an amplitude ratio of 4:1 will be generated by
pressing the start button of the Signal Generator. The mixed signal will be injected into the

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DUT (Device Under Test), and the response of the DUT will be captured and analyzed by the
Oscilloscope and Spectrum Analyzer. The DIN IMD value of the DUT will be measured and
displayed.
(10) IMDccif: IMD CCIF2 (19 kHz + 20 kHz, 1:1) (Avg. 10)
A 19 kHz and a 20 kHz sine waves mixed at an amplitude ratio of 1:1 will be generated by
pressing the start button of the Signal Generator. The mixed signal will be injected into the
DUT (Device Under Test), and the response of the DUT will be captured and analyzed by the
Oscilloscope and Spectrum Analyzer. The CCIF2 IMD value of the DUT will be measured
and displayed.
(11) FRwhite: Magnitude Frequency Response (White Noise, Avg. 30)
White noise will be generated by pressing the start button of the Signal Generator. The white
noise will be injected into the DUT (Device Under Test), and the response of the DUT will
be captured and analyzed by the Oscilloscope and Spectrum Analyzer. The curve in the
Spectrum Analyzer indicates the magnitude frequency response of the DUT.
(12) FRpwn: Magnitude Frequency Response (Periodic White Noise)
Periodic white noise will be generated by pressing the start button of the Signal Generator.
The periodic white noise will be injected into the DUT (Device Under Test), and the
response of the DUT will be captured and analyzed by the Oscilloscope and Spectrum
Analyzer. The curve in the Spectrum Analyzer indicates the magnitude frequency response
of the DUT. One advantage of using periodic white noise is that its spectrum is ideally flat
even without inter-frame averaging.
(13) FRswLin: Magnitude Frequency Response (Frequency Sweep, Linear)
A 0.68266667-second 20Hz-to-20kHz linear frequency swept sine wave will be generated by
pressing the start button of the Signal Generator. The signal will be injected into the DUT
(Device Under Test), and the response of the DUT will be captured by the Oscilloscope and
Spectrum Analyzer. The curve in the Spectrum Analyzer indicates the magnitude frequency
response of the DUT. Note that you will need to adjust the trigger level so that the
Oscilloscope will be triggered just upon the start of the sweep.
(14) FRswLog: Magnitude Frequency Response (Frequency Sweep, Log)
A 0.68266667-second 20Hz-to-20kHz logarithmic frequency swept sine wave will be
generated by pressing the start button of the Signal Generator. The signal will be injected into
the DUT (Device Under Test), and the response of the DUT will be captured by the
Oscilloscope and Spectrum Analyzer. The curve in the Spectrum Analyzer indicates the
magnitude frequency response of the DUT. Note that you will need to adjust the trigger level
so that the Oscilloscope will be triggered just upon the start of the sweep.
(15) FRmt: Magnitude Frequency Response (MultiTone, 31 1/3 Octave Bands)
A multitone consists of 31 1/3 octave band center frequencies from 20 Hz to 20kHz will be
generated by pressing the start button of the Signal Generator. The signal will be injected into
the DUT (Device Under Test), and the response of the DUT will be captured by the
Oscilloscope and Spectrum Analyzer. The curve in the Spectrum Analyzer indicates the
magnitude frequency response of the DUT.
(16)sLeq: Short Equivalent Continuous Sound Level (Short Leq, 125ms)

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This panel setting will display the short equivalent continuous sound level. The value is time-
averaged over continuous 125 ms.
(17)sLeqA: Short Equivalent Continuous Sound Level (Short Leq, 125ms) (A-Weighted)
This panel setting will display the A-weighted short equivalent continuous sound level. The
value is time-averaged over continuous 125 ms.
(18)sLeqC: Short Equivalent Continuous Sound Level (Short Leq, 125ms) (C-Weighted)
This panel setting will display the C-weighted short equivalent continuous sound level. The
value is time-averaged over continuous 125 ms.
(19)OCT1spl: 1/1 Octave Analysis (Avg. 10) in SPL
Same as OCT3, but with coarser frequency resolution and the Y axis displayed in dBSPL
instead of dBFS in Spectrum Analyzer.
(20)OCT3spl: 1/3 Octave Analysis (Avg. 10) in SPL
Same as OCT3, but with the Y axis displayed in dBSPL instead of dBFS in Spectrum
Analyzer.
1.8 More Acoustic Analysis Functions Available in Multi-
Instrument Pro or Above
Multi-Instrument is very versatile and supports a comprehensive set of acoustic
measurements. To highlight a few not mentioned in the previous sections: Reverberation
(including RT60), Speech Intelligibility (including STI), ANSI / CEA-2010 Subwoofer Peak
SPL Test, Cumulative Spectral Decay, Speaker Rub & Buzz, Sound Quality (loudness,
loudness level, sharpness, articulation index, etc.), etc. Some of these functions are only
available in Multi-Instrument Pro or above. Please refer to Multi-Instrument software
manual for more details.
1.9 List of Audio Test WAV Files (AudioTestCD.zip)
Track
Description
Length
(second)
Recommended Panel
setting to be used
1
Pink Noise in Phase (-1dBFS)
298
OCT1 ~ OCT24
OCT1spl, OCT3spl
2
Pink Noise out of Phase (-1dBFS)
298
3
White Noise in Phase (-1dBFS)
298
FRwhite
4
White Noise out of Phase (-1dBFS)
298
5
Log Sweep 20Hz~20kHz (-1dBFS)
60
6
Log Sweep 20Hz~20kHz out of Phase (-1dBFS)
60
7
Linear Sweep 20Hz~20kHz (-1dBFS)
60
8
Linear Sweep 20Hz~20kHz out of Phase (-1dBFS)
60
9
Log Sweep 20Hz~200Hz (-1dBFS)
60
10
Log Sweep 20Hz~200Hz out of Phase (-1dBFS)
60
11
Linear Sweep 20Hz~200Hz (-1dBFS)
60
12
Linear Sweep 20Hz~200Hz out of Phase (-1dBFS)
60

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13
Log Sweep 2kHz~20kHz (-1dBFS)
60
14
Log Sweep 2kHz~20kHz out of Phase (-1dBFS)
60
15
Linear Sweep 2kHz~20kHz (-1dBFS)
60
16
Linear Sweep 2kHz~20kHz out of Phase (-1dBFS)
60
17
Log Sweep 20Hz~20kHz (-1dBFS)
0.683
FRswlog
18
Log Sweep 20Hz~20kHz out of Phase (-1dBFS)
2.73
19
Linear Sweep 20Hz~20kHz (-1dBFS)
0.683
FRswlin
20
Linear Sweep 20Hz~20kHz out of Phase (-1dBFS)
2.73
21
MultiTone32Octave1/3 in Phase (-1dBFS)
60
FRmt
22
MultiTone32Octave1/3 out of Phase (-1dBFS)
60
23
1kHz (0dBFS)
60
24
1kHz (-1dBFS)
60
THDcd
25
1kHz (–3dBFS)
60
26
1kHz (–10dBFS)
60
27
1kHz (–60dBFS)
60
28
60Hz and 7kHz mixed at 4: 1 (-1dBFS)
60
IMDsmp
29
250Hz and 8kHz mixed at 4: 1 (-1dBFS)
60
IMDdin
30
19kHz and 20kHz mixed at 1: 1 (-1dBFS)
60
IMDccif
31
1kHz Square (-1dBFS)
60
32
Digital Silence
60
33
LeftRight (English)
60
34
Left Right Center Surround (English)
60
35
LeftRight (Chinese)
60
36
Left Right Center Surround (Chinese)
60
37
12.5 Hz (-1dBFS)
60
1/3 Octave Band 1
38
16 Hz (-1dBFS)
60
1/3 Octave Band 2
39
20 Hz (-1dBFS)
60
1/3 Octave Band 3
40
25 Hz (-1dBFS)
60
1/3 Octave Band 4
41
31.5 Hz (-1dBFS)
60
1/3 Octave Band 5
42
40 Hz (-1dBFS)
60
1/3 Octave Band 6
43
50 Hz (-1dBFS)
60
1/3 Octave Band 7
44
63 Hz (-1dBFS)
60
1/3 Octave Band 8
45
80 Hz (-1dBFS)
60
1/3 Octave Band 9
46
100 Hz (-1dBFS)
60
1/3 Octave Band 10
47
125 Hz (-1dBFS)
60
1/3 Octave Band 11
48
160 Hz (-1dBFS)
60
1/3 Octave Band 12
49
200 Hz (-1dBFS)
60
1/3 Octave Band 13
50
250 Hz (-1dBFS)
60
1/3 Octave Band 14
51
315 Hz (-1dBFS)
60
1/3 Octave Band 15
52
400 Hz (-1dBFS)
60
1/3 Octave Band 16
53
500 Hz (-1dBFS)
60
1/3 Octave Band 17
54
630 Hz (-1dBFS)
60
1/3 Octave Band 18
55
800 Hz (-1dBFS)
60
1/3 Octave Band 19
56
1250 Hz (-1dBFS)
60
1/3 Octave Band 21
57
1600 Hz (-1dBFS)
60
1/3 Octave Band 22
58
2000 Hz (-1dBFS)
60
1/3 Octave Band 23
59
2500 Hz (-1dBFS)
60
1/3 Octave Band 24
60
3150 Hz (-1dBFS)
60
1/3 Octave Band 25
61
4000 Hz (-1dBFS)
60
1/3 Octave Band 26
62
5000 Hz (-1dBFS)
60
1/3 Octave Band 27
63
6300 Hz (-1dBFS)
60
1/3 Octave Band 28
64
8000 Hz (-1dBFS)
60
1/3 Octave Band 29
65
10000 Hz (-1dBFS)
60
1/3 Octave Band 30
66
12500 Hz (-1dBFS)
60
1/3 Octave Band 31
67
16000 Hz (-1dBFS)
60
1/3 Octave Band 32
68
20000 Hz (-1dBFS)
60
1/3 Octave Band 33
69
999.9481201 Hz (-1dBFS)
60
THD
70
One 0.5ms Inverted Saw Tooth Pulse Every 100ms
1
Polarity Test