Anc Noise Reduction Headset Audio Test System

ANC testing system is a set of testing system based on A2 audio analyzer, which takes both ANC testing and earphone acoustic testing into account.The system can test the passive noise reduction and active noise reduction curve of headphones manually or automatically according to the needs of customers.The test system has good stability and fast speed, which can effectively solve the problem of R & D or production line noise reduction earphone test.At the same time, it supports noise reduction earphone filter circuit curve test, all relevant acoustic tests of ordinary Bluetooth earphone, TWS earphone and wired earphone.

System features
1.Support FF,FB,Hybrid;
2.Support ANC PCBA filter circuit test
3.Support ANC gain automatic adjustment
4.Support automatic burning function
5.Support automatic production test judgment
6.Support test data statistics and automatic saving of test report
7.Support Bluetooth headset, TWS headset, wired headset and other audio tests
8.Support production measurement MES system

Test items
ANC test
1.L / R passive noise reduction curve
2.L / R active noise reduction curve
3.L / R noise reduction curve
4.L / R noise reduction balance curve
5.Phase curve
6.Automatic adjustment of active noise reduction
7.Active noise reduction and automatic burning function
8.Product burn times status query
9.Frequency response curve of filter circuit
10.Other customized requirements

Acoustic test
1.Frequency response curve
2.Sensitivity (SPL)
3.Optional order harmonic distortion (2-20 times)
4.THD curve
5.Distortion of left and right single frequency points
6.Abnormal sound detection (rub & buzz)
7.Balance curve of left and right earphones
8.Custom single frequency point balance
9.Left and right polarity
10.Left and right isolation
11.Electroacoustic SNR
12.Mic FR curve
13.Mic average sensitivity
14.Mice distortion curve

System hardware frame diagram