Digital Microphone testing
Digital microhone testing
TotalSound is an easy-operating, flexible, powerful electroacoustic testing system, purpose-designed based on PC operating system by Acoustech Limited. TotalSound gives out the real-time results exactly to show you if the results are good or bad, generating reports as your requirement.
It is more accurate and high speed to test microphone, more easy to setup and ensure the precision, it is suitable for production line, we have new power amplifier which rated power is about 45-w, the different gain selecting , can drive the mouth simulator easily, the new format stimulus, conforming to ISO standard, make sure you set the testing time less than 1s, it is perfect for customer.
The TotalSound testing system can use footswitch to start, through RS232, the testing parameters include two items: acoustical and current, the two items tested simultaneously, this can improve the testing speed and the efficiency
Device under testing:
1) Digital microhone
Test parameters as below:
n Frequency Response
n THD(total harmonic distortion)
n Average sensitivity
Testing system information
1) TotalSound electroacoustic testing system
3) PA100-power amplifier
4) M300-4F-1/4 inch free field microphone
5) PS200-standard microphone power supply
6) ADI A3board-digital microphone data converter and power supply
7) Anechoic box with speaker integrated
The configuration figure (Fig.1) for testing digital microphone with standard microphone M300-4F:
The TotalSound can get the similar test results with some international testing systems under the same testing environment.
The TotalSound test result (Fig.2):
Fig.2 System interface