How to select a preferred channel on the audiorecorder

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Venkat Ta
Venkat Ta 2022-11-25
回答： Sameer Pujari 2022-11-28
I understand that currently only one and two channel audio is supported, but if I want to select a specific channel number to record, how do I do that with this function?
For example, if I wanted to register the 14th and 12th ADC inputs instead of the defaults of 1 and 2, how would I do that in the function (recObj = audiorecorder(48000,24,2,2))?

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回答（1 个）

Sameer Pujari
Sameer Pujari 2022-11-28
Hi Venkat
The "audiorecorder" function is a lightweight function for most common usages (acquire sound from a stereo source, only 2 channels).
If you would like to acquire sound from a source that has more than 2 channels, you should use the Audio System Toolbox.
https://www.mathworks.com/products/audio-system.html
You can specify the channels to sample using the Channel Mapping property of the audioDeviceRecorder object:
https://www.mathworks.com/help/audio/ref/audiodevicereader-system-object.html#mw_02dcd56d-0d89-42ba-8bb9-f32761319438

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