System Features:
1. The test time is only 3 seconds
2. Automatically test all parameters with one key
3. Automatically generate and save test reports.
Detection items：
Test microphone frequency response, distortion, sensitivity and other parameters
Distortion Curve：
The total distortion ratio corresponding to each frequency point obtained by frequency sweep
Frequency Noise Nurve (1/ 6 Oct smooth)
Abnormal sound peak factor: through the high-pass filter residual signal peak / residual signal limit. The limit is usually set to 12dB, or set according to product and environmental factors.
Post time: Jul-03-2023