Different amplitude scales when recording two same mics simultaneously

Hi,

I create two deviceReader obeject and try to record signal from two mics simultaneously, but I find the amplitude scales of them are different, seeing in below figure.

But when I record signal with mic separately, it seems normal.

Thanks for you help!

Answer 1

[Shubham Khatri]

Hello,

The difference in amplitude might be because of distance between the source of sound and the microphones. Also, it might be because of different sampling rates.

For more information , please refer to the documentation link of audioDeviceReader

[Qiang Yang]

Hi,

The reason is that the volume setting of two arrays are different, which can be adjusted in windows system setting. Thanks for your answer anyway!