Record multiple microphones simultaneously

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Timothy 2012-11-19

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/54191-record-multiple-microphones-simultaneously

评论： joe boby soegiarto 2015-6-24

I have read several topics on this issue, but the ones I have found differed from mine slightly.

I wish to record 2 sound recordings at once. I have both mic's plugged in. I set up two audiorecorder functions like this:

rec1=audiorecorder(44100,8,1,1);

rec2=audiorecorder(44100,8,1,2);

record(rec1,3);

record(rec2,3);

Only rec1 recorded. I can see this by plotting the audiodata for both recordings. Is this problem due to MatLab not recognizing the 2nd microphone? Or is there something inherently wrong with my code?

Also, would there be an easier way to do multiple recordings? I've read something about Data Acquisition Toolbox, but I don't have it and have never used it.

Thanks for your help.

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Timothy 2012-11-28

编辑：Timothy 2012-11-28

I found out why Matlab wasn't recording with one of them, and it was because there was a faulty USB port that it was plugged in to-I tried plugging a mouse into it and that didn't work either. When I plugged it into a different USB, I got this for the audiodevinfo, and it seems to work fine:

>> audiodevinfo(1,1)

ans =

Microphone (1- USB Audio Device) (Windows DirectSound)

>> audiodevinfo(1,2)

ans =

Microphone (2- USB Audio Device) (Windows DirectSound)