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Audio analyzer A6

A6 is a 4-channel audio analyzer with 2 channels of analog output/4 channels of analog input, as well as a digital interface (AES/EBU/TOSLINK/SPDIF) with a sampling rate of up to 216K, designed specifically for typical 4-channel power amplifiers in the automotive audio industry. In addition, the input output interface can be extended through optional digital modules such as DSIO/PDM/BT/HDMI.
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    • Commodity name: Audio analyzer A6
    • Commodity ID: A6

    A6 is a 4-channel audio analyzer with 2 channels of analog output/4 channels of analog input, as well as a digital interface (AES/EBU/TOSLINK/SPDIF) with a sampling rate of up to 216K, designed specifically for typical 4-channel power amplifiers in the automotive audio industry. In addition, the input output interface can be extended through optional digital modules such as DSIO/PDM/BT/HDMI.

    The A6 is a 4-channel audio analyzer with 2-channel analog output/4-channel analog input and a digital interface (AES/EBU/TOSLINK/SPDIF) with sampling rates up to 216K, designed for quad amplifiers typical of the automotive audio industry. In addition, the input and output interfaces can be expanded by optional digital modules DSIO/PDM/BT/HDMI, etc.

    Key features:

    • Fully benchmarked against AP's APx526 audio analyzer
    • SPDIF/TOSLINK/AES/EBU digital interface is supported as standard
    • Support BT/HDMI/I2S/PDM and other digital interface expansion
    • Complete and powerful electroacoustic analyzer functions
    • Code-free automation and comprehensive API interface
    • SUPPORT FOR LABIEW, VB.NET, C#.NET
    • Supports Dolby & DTS digital streaming
    • Universal software platform, generate a variety of formats of reports and pictures, easy to share
    • A new generation of software interface, supporting one-click testing, intelligent setting, data graphic judgment, advanced settings, etc

    Some of the measurement functions:

    • Level/Gain/Phase Level & Gain & Phase
    • Channel Balance/Level Ratio
    • Frequency Response
    • Total harmonic distortion plus noise THD+N
    • Intermodulation distortion IMD
    • 信噪比 /Signal-to-Noise Ratio
    • Noise/Noise
    • Separation/Crosstalk
    • Lnterchannel phase
    • DC Level DC Level
    • Frequency Measurement
    • Test recorder Measurement Recorder
    • Step Level Sweep
    • Step Frequency Sweep
    • Common-mode rejection ratio CMRR
    • Oscilloscope/Spectrometer/Scope Monitor/Specturm
    • DC Level Sweep
    • Q-peak noise
    Key words:
    • 分析仪
    • 测试
    • 支持
    • 软件
    • 功能
    • 扫描
    • 电平
    • 接口
    • 输入
    • level
  • • System performance

    Residual THD+N (20kHz BW): -108dB

    • Source indicators

    Sinusoidal signal frequency range: 0.1Hz to 80.1kHz

    Frequency accuracy: 3ppm

    Intermodulation Distortion (IMD) test signal types: SMPTE, MOD, DFD

    Maximum output amplitude (balanced): 21.21 Vrms

    Amplitude accuracy (1kHz): ±0.03dB

    Flatness (20Hz–20kHz): ±0.008dB

    Analog output configuration: Unbalanced & Balanced

    Maximum digital output sampling rate: 216 kHz

    Sampling accuracy: 3ppm

    Number of digits: 8-24bit

    Residual jitter: Electrical < 1.5ns fiber < 2.5ns

    Dolby/dts Source: Yes (pre-encoded file)

    • Analyzer indicators

    Maximum rated input voltage: 300Vrms

    Maximum bandwidth: 90kHz

    Intermodulation Distortion (IMD) test functions: SMPTE, MOD, DFD

    Amplitude accuracy (1kHz): ±0.03dB

    Amplitude flatness (20Hz–20kHz): ±0.008dB

    Residual input noise (20kHz BW): 1.3uV

    Independent harmonic analysis: d2–d10

    Maximum FFT conversion length: 1.2M points

    DC voltage test: Yes

    • Common indicators

    Size (WxDxH): 480mm*522mm*153mm

    Weight: 8.2kg±0.5kg

    Working voltage (AC): 220V, 50Hz/100V-240V, 50Hz-60Hz

  • Input and output interface options:

    Audio analyzer

    1. A5-BT-DUO option

    The Bluetooth Dual Antenna Module is a completely revised, upgraded Bluetooth hardware module with a dedicated source and receiver, a new Bluetooth chip and the latest firmware, higher RF power, and improved RF shielding. And it offers a range of new audio codecs, support for new operational features in profiles, and faster connection times.

    2. A5-HDMI option

    HDMI+ARC (Audio Return Channel) is a versatile audio monitoring and measurement option, it is powerful, easy to use, accurate measurement results, can be widely used in multimedia products audio quality testing, can provide all standard audio measurement items, including level, signal-to-noise ratio, distortion, phase, crosstalk, group delay, etc.

    3. A5-DSIO option

    The DSIO option adds a multi-channel digital serial interface to the audio analyzer, providing a direct connection to the chip-level interface, which plays a decisive role in the design and development of the board, and its simple use and accurate test results can be widely used in audio quality testing of various digital devices.

     

    4. A5-PDM option

    PDM (Pulse Density Modulation) is a 1-bit, high-clock frequency data stream used in MEMS (Microelectro-Mechanical Systems) digital microphones, widely used in the design of smartphones. Audio analyzers equipped with the A5-PDM module can be directly connected to any device with PDM inputs or outputs to enable comprehensive audio testing required in the highly mobile telecommunications industry.

    Software Options:

    Audio analyzer

    1. AX-SPK-RD option

    SPK-RD provides designers and developers of electroacoustic products with a comprehensive set of test functions and results, including some key acoustic test indicators, a comprehensive set of T/S parameters, time-window-controlled quasi-acoustic response testing of a non-acoustic environment, impedance analysis, and more, this option includes all test functions of the production line version.

    2. AX-SPK-PT option

    SPK-PT is used for rapid testing of electroacoustic product production lines, providing the main index parameter test of loudspeakers, and obtaining all test results in one scan. The results include Rub & Buzz, the necessary set of T/S parameters, impedance amplitude and phase, and a dedicated modulated noise test function to detect air leakage in the speaker.

     

    Audio analyzer

    3. AX-PESQ is based on ITU-T P.862 standard

    Perceptual audio measurement is widely used in mobile phones, VoIP networks, and other device tests to measure how people perceive sound quality. Especially for devices with limited bandwidth or bit rate, parameters such as frequency response/distortion testing using standard sine waves do not effectively reflect device performance, and only a combination of perceptual and electrical audio tests can fully account for device performance. PESQ is a widely used perceptual audio measurement primarily for subjective evaluation of speech quality in low-bandwidth devices.

    4. AX-POLQA2 is based on ITU-T P.863 standard

    POLQA2 uses a new generation of POLQA algorithms for subjective assessment of speech quality in wideband voice devices or devices with acoustic coupling. (Inherits PESQ and supports HD voice, 3G, 4G/LTE and VoIP technologies)

     

    5. AX-STIPA option

    AX-STIPA is a plug-in that uses the STIPA method for Voice Delivery Index (STI) testing.

     

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