
Microphone automatic test system
- Features
- Specification
- Options and upgrades
- Resource centre
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- Commodity name: Microphone automatic test system
- Commodity ID: ABT9801
This system uses our own high-performance two-channel A2 audio analyzer and related acoustic test accessories, such as standard microphones, artificial mouths, etc., to achieve the performance index test of the microphone under test, such as sensitivity, frequency response, distortion curve, array Mai's consistency test.
I. Function Overview
This system uses our own high-performance two-channel A2 audio analyzer and related acoustic testing accessories, such as standard microphones, artificial mouths, etc. Mai's consistency test.
Second, the test schematic
The analog signal source of the A2 audio analyzer sends a standard signal source, plays standard audio through the power amplifier and artificial mouth, collects the signal from the microphone under test, and transmits the collected signal to the analog or digital input of the A2 audio analyzer for parameter analysis; The microphone is used to calibrate the artificial mouth so that it produces a standard sound source in the test frequency band, and the test conditions are reasonably set.
The microphone is divided into analog microphone and digital microphone according to the different output signals. The specific test is determined by the microphone. The A2 audio analyzer supports analog, digital (PDM, I2S, etc.) and audio file analysis;
Third, the test software is introduced
The test interface is simple and friendly, easy to operate and can be flexibly scheduled;
Automatically judge PASS / FAIL;
Test parameters can be set by yourself;
Data export function;
Support multiple data file access;
Fourth, equipment list
Microphone test equipment list
Serial number
Device name
manufacturer
Quantity
1
A2 audio analyzer
ABTEC
1
2
DSIO + PDM option
ABTEC
1
3
Power amplifier
custom made
1
4
Artificial mouth
custom made
1
5
Standard microphone (including power adapter)
custom made
1
6
Acoustic Calibrator
custom made
1
7
Soundproof box
custom made
1
8
Test wire
ABTEC
Several

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