Audio analyzer A1DD
The A1DD is a versatile and extremely fast audio tester specially launched by Eptec based on a low-cost solution. Communication between the instrument and the control computer via USB, controlled by ATC software, enables comprehensive audio parameter measurement in a very short time. The test software ATC has a simple and flexible operation interface, and provides a comprehensive API, supports programming tools such as VB.NET, C#.NET, LabVIEW, etc., and can form a larger and flexible test system through secondary development, which is very suitable for production line testing.
Key features:
- Analog 2 channels of input\output
- Support SPDIF/TOSLINK/AES/EBU digital interface
- No programming is required, and full testing is possible in less than 3 seconds
- Intuitive user interface with one-click testing
- SUPPORT FOR LABIEW, VB.NET, C#.NET
- Supports foot switches or barcode scanner control of the instrument
- Support project file sharing
- Perform versatile and high-performance audio measurements (including oscilloscopes, spectrum analysis, continuous fast sweeps, etc.)
- Provides automated and built-in test sequences to simplify the test environment
- Automatically generate test reports in various formats
- Using ITUT-T standards, POLQA and PESQ complete higher quality voice and audio measurements
Some of the tested features:
- Level Ratio
- Input SampleRate
- Acoustic Response Measurement
- Loudspeaker Measurement/Loudspeaker Test
- PESQ voice quality assessment
- POLQA subjective sound quality evaluation
- Level/Gain & Gain
- Frequency Response
- Total harmonic distortion plus noise THD+N
- Signal-to-Noise Ratio
- DC Level DC Level
- DC Level Sweep
- Interchannel Phase
- Scope Monitor/Specturm
- Frequency Measurement
- Test recorder Measurement Recorder
- Step Level Sweep
- Step Frequency Sweep
- Compare Encoded Bitstream
- Common-mode rejection ratio CMRR
- Confidence SINAD
- Pass/Fail verdict
- Noise
- Impedance/Thiele-Small
- Separation Crosstalk
- Quasi-peak noise Q-peak Nois
• System performance
Residual THD+N (20kHz BW): -106 dB
• Source indicators
Sinusoidal signal frequency range: 2Hz to 80.1kHz
Frequency accuracy: 3ppm
IMD test signals: SMPTE, MOD, DFD
Maximum output amplitude (balanced): 16 Vrms
Amplitude accuracy (1kHz): ±0.05 dB
Flatness (20Hz - 20kHz): ±0.01 dB
Analog output configurations: XLR (balanced), BNC (unbalanced)
Maximum digital output sampling rate: 216 kHz
Sampling accuracy: 3ppm
Number of bits: 8-24 bits
Residual jitter: Electrical < 1.5ns fiber < 2.5ns
Dolby/dts Source: Yes (pre-encoded file)
• Analyzer indicators
Maximum rated input voltage: 230Vpk
Maximum bandwidth: 90 kHz
IMD test features: SMPTE, MOD, DFD
Amplitude accuracy (1kHz): ±0.05dB
Amplitude flatness (20Hz - 20kHz): ±0.01dB
Residual input noise: 1.4 uV
Independent harmonic analyzer: d2-d10
Maximum FFT length: 1.2M points
DC voltage measurement
• Common indicators
Size (WxDxH): 430mm*308mm*89mm
Weight: 6.2kg±0.2kg
Working voltage (AC): 220V, 50Hz/100V-240V, 50Hz-60Hz
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