A8 is a true multi-channel audio analyzer, which supports analog 8-channel simultaneous input/output and digital interface (BT, I2S, HDMI, PDM, etc.) expansion. It is an ideal test equipment for consumer equipment such as home theater receiver/professional Mixing console, etc.
A true multi-channel analyzer that is not only a quick test, but also a simultaneous evaluation of multi-channel audio performance. Today’s mainstream A/V receivers, media players and multi-channel audio products such as automotive audio and video testing still use the traditional two-channel audio analyzer combined with audio switch to achieve, its slow test speed, multi-channel complex relationship can not be evaluated and other problems have been plaguing product developers. The A8 audio analyzer solves the shortcomings of traditional testing methods, not only providing ultra-fast test speeds, but also testing complex relationships between multiple channels.
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
- 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
• System performance
Residual THD+N (20kHz BW): -103dB
• Source indicators
Sinusoidal signal frequency range: 5Hz to 80.1kHz
Frequency accuracy: 3ppm
Intermodulation Distortion (IMD) test signal types: SMPTE, MOD, DFD
Maximum output amplitude (balanced): 14.4 Vrms
Amplitude accuracy (1kHz): ±0.05dB
Flatness (20 Hz–20 kHz): ±0.008dB
Analog output configuration: Unbalanced & balanced
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: 160 Vpk
Maximum bandwidth: 90 kHz
Intermodulation Distortion (IMD) test functions: SMPTE, MOD, DFD
Amplitude accuracy (1kHz): ±0.05dB
Amplitude flatness (20 Hz–20 kHz): ±0.008dB
Residual input noise (20 kHz BW): 1.3 μV
Independent harmonic analysis: d2–d10
Maximum FFT conversion length: 1248K points
DC voltage test: Yes
• Common indicators
Size (WxDxH): 480mm*522mm*153mm
Weight: 8.5kg±0.5kg
Working voltage (AC): 220V, 50Hz/100V-240V, 50Hz-60Hz
1)、AB-BT 5 Option
BT 5 is a brand new Bluetooth hardware module, equipped with a new generation of Bluetooth chips and the latest firmware, fully supporting Bluetooth Low Energy (BLE) function. It uses Bluetooth LC3 codec, which can achieve unicast music, unicast voice, and Auracast broadcast audio functions. The BT 5 module provides interfaces for audio devices that adopt the latest Bluetooth specifications, assisting headphones, hearing aids, car audio and video hosts, and other Bluetooth compliant devices ® The R&D engineers and manufacturers of 5 standard audio equipment efficiently and accurately measure the audio indicators of the equipment.
2）、AB-BT-DUO Option
BT 5 is a brand new Bluetooth hardware module, equipped with a new generation of Bluetooth chips and the latest firmware, fully supporting Bluetooth Low Energy (BLE) function. It uses Bluetooth LC3 codec, which can achieve unicast music, unicast voice, and Auracast broadcast audio functions. The BT 5 module provides interfaces for audio devices that adopt the latest Bluetooth specifications, assisting headphones, hearing aids, car audio and video hosts, and other Bluetooth compliant devices ® The R&D engineers and manufacturers of 5 standard audio equipment efficiently and accurately measure the audio indicators of the equipment.
The BT-DUO option is a fully revised and upgraded Bluetooth hardware module with dedicated sources and receivers, new Bluetooth chips and latest firmware, higher RF power, and improved shielding features. And it can provide a series of new audio codecs to meet the diversity of current Bluetooth products. Support new operational features in config-uration files and faster Bluetooth connectivity, enabling engineers to quickly and accurately test Bluetooth products and master their device perfor-mance.
The DSIO option adds a multi-channel digital serial interface to the audio analyzer, providing direct connections for chip level interfaces and playing a decisive role in the design and development of circuit boards. It is easy to use, with accurate test results, and can be widely used for audio quality testing of various digital devices.
The DSIO option adds a multi-channel digital serial interface to the audio analyzer, providing direct connections for chip level interfaces and playing a decisive role in the design and development of circuit boards. It is easy to use, with accurate test results, and can be widely used for audio quality testing of various digital devices.
4）、AB-PDM option
Pulse-density modulation (PDM) is a 1-bit, high clock frequency data stream used in MEMS digital microphones, which is widely used in smart phone design. The audio analyzer equipped with A5-PDM module can be directly connected to any device with PDM input or output to achieve comprehensive audio testing required by the highly mobile telecommunications industry.
Pulse-density modulation (PDM) is a 1-bit, high clock frequency data stream used in MEMS digital microphones, which is widely used in smart phone design. The audio analyzer equipped with A5-PDM module can be directly connected to any device with PDM input or output to achieve comprehensive audio testing required by the highly mobile telecommunications industry.
5）、AB-PDM16 Option
PDM16, as an optional input module for Ax series audio analyzers, consists of an input module installed in the analyzer, a remote interface box, and an extension cable. It can provide up to 16 channels of accurate inter channel phase information for sampling, which is the key data for creating MEMS microphone arrays. PDM16 utilizes synchronous sampling based on a common clock to ensure clear and visible phase relationships between channels.
PDM16, as an optional input module for Ax series audio analyzers, consists of an input module installed in the analyzer, a remote interface box, and an extension cable. It can provide up to 16 channels of accurate inter channel phase information for sampling, which is the key data for creating MEMS microphone arrays. PDM16 utilizes synchronous sampling based on a common clock to ensure clear and visible phase relationships between channels.
6）、AB-ADIO Option
The advanced digital interface module AB-ADIO provides AES3 and AES/EBU balanced digital input/output interfaces on the XLR port, unbalanced SPDIF digital input/output interfaces on the BNC port, and fiber optic digital input/output interfaces on TOSLINK. In addition, the ADIO module can generate advanced interface damage signals and perform complex testing on devices through AES/SPDIF/TOSLINK. It also includes an advanced master clock module AMC, which is used to process input and output clock signals and synchronize with external devices. It can also generate and test jitter signals for interface modules that support jitter (ADIO, DSIO, HDMI, etc.).
The advanced digital interface module AB-ADIO provides AES3 and AES/EBU balanced digital input/output interfaces on the XLR port, unbalanced SPDIF digital input/output interfaces on the BNC port, and fiber optic digital input/output interfaces on TOSLINK. In addition, the ADIO module can generate advanced interface damage signals and perform complex testing on devices through AES/SPDIF/TOSLINK. It also includes an advanced master clock module AMC, which is used to process input and output clock signals and synchronize with external devices. It can also generate and test jitter signals for interface modules that support jitter (ADIO, DSIO, HDMI, etc.).
7）、AB-AMC Option
The advanced master clock module AB-AMC is used to process input and output clock signals to synchronize the audio analyzer with external devices, while generating and analyzing jitter signals for audio analyzers equipped with ADIO, DSIO, PDM, or HDMI modules.
The advanced master clock module AB-AMC is used to process input and output clock signals to synchronize the audio analyzer with external devices, while generating and analyzing jitter signals for audio analyzers equipped with ADIO, DSIO, PDM, or HDMI modules.
8）、AB-A2B Option
The latest audio analyzer interface option AB-A2B launched by Aptec is a set of audio interfaces developed based on A2B automotive audio bus technology, designed to meet the testing and measurement needs of manufacturers in the current automotive electronics and consumer electronics audio industry. This module has flexible A2B network configuration and interface functions, making it an indispensable tool for designers and manufacturers in the related audio industry. The AB-A2B interface module has independent Master and Salve, which can provide direct connection with the test product and also provide an additional power input interface for auxiliary testing. These interfaces, combined with the powerful audio testing software ATC, can achieve closed-loop multi-channel audio testing of A2B systems and components, such as car infotainment systems, car amplifiers, car microphones, and other related consumer products.
The latest audio analyzer interface option AB-A2B launched by Aptec is a set of audio interfaces developed based on A2B automotive audio bus technology, designed to meet the testing and measurement needs of manufacturers in the current automotive electronics and consumer electronics audio industry. This module has flexible A2B network configuration and interface functions, making it an indispensable tool for designers and manufacturers in the related audio industry. The AB-A2B interface module has independent Master and Salve, which can provide direct connection with the test product and also provide an additional power input interface for auxiliary testing. These interfaces, combined with the powerful audio testing software ATC, can achieve closed-loop multi-channel audio testing of A2B systems and components, such as car infotainment systems, car amplifiers, car microphones, and other related consumer products.
9）、AX-PESQ/POLQA2 option
Perceived audio measurement is widely used in smartphones, VoIP networks, and device testing to measure how people perceive sound quality. Perceived sound quality testing is particularly useful for devices with limited bandwidth or bit rates. Using standard sine wave testing parameters such as frequency response/distortion cannot effectively test and compare the performance of different devices. Only a combination of perceptual and electrical audio testing can fully demonstrate the performance of these devices.
Perceived audio measurement is widely used in smartphones, VoIP networks, and device testing to measure how people perceive sound quality. Perceived sound quality testing is particularly useful for devices with limited bandwidth or bit rates. Using standard sine wave testing parameters such as frequency response/distortion cannot effectively test and compare the performance of different devices. Only a combination of perceptual and electrical audio testing can fully demonstrate the performance of these devices.
10）、AX-STIPA Option
AX-STIPA is a plugin that uses the STIPA method for measuring the Speech Transmission Index (STI). For designers of public broadcasting, flight recorders, and police/fire/emergency communication systems, the Voice Transmission Index (STI) test plugin can provide STIPA measurements and voice level measurements that comply with the international standard IEC 60268-16 (2011).
AX-STIPA is a plugin that uses the STIPA method for measuring the Speech Transmission Index (STI). For designers of public broadcasting, flight recorders, and police/fire/emergency communication systems, the Voice Transmission Index (STI) test plugin can provide STIPA measurements and voice level measurements that comply with the international standard IEC 60268-16 (2011).
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