select channel to record from input device

[kyle111]

Hello all,

I've been using gstreamer plug-ins for recording and speech recognition
purposes and it's working fine.
Normally, I'd use "aslasrc" and set "device" property to "hw:1" , "hw:2" ,
etc for my multiple input mics.

Now, I have ONE input device with multiple input channels and I want to
record only from specific channel (i.e. let's say , out of 8 input channels,
record Right chn or chn-id = 2). 
However, I've look into the  documentation
<https://gstreamer.freedesktop.org/documentation/alsa/alsasrc.html?gi-language=c>  
but can't find anything related to selecting channel ID.  

Is that possible to do with gstreamer ?

Thank you guys 



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