Mix configuration on imx8m android9

[raman_thapar]

I am using a CX20921 codec with an IMX8m mini and have the driver working to the point I see the device under /dev/sound. I can record audio using tinycap under Linux. 

However I don't see the mic in Android.  How do I hook the mic up into Android? Any pointers will be helpful.

Thanks!

[igorpadykov]

Hi Raman

one can look at android resources:

Android: How to configure "tinymix" to record system audio with "tinycap" - Stack Overflow 

http://www.programmersought.com/article/9586201076/ 

Best regards
igor
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[raman_thapar]

Thanks Igor. The links seem to be more about getting tinycap to work. For me tinycap is working and I am able to record and playback the recording in Linux.

I am wondering if there is anything I need to do so Android is able to use the mic. For example configuring audio configuration xml files or any other settings to let Android know about the connected device.

My mic is connected to the system via a codec and is using I2s as the input source for data.

Thanks!

[igorpadykov]

Hi Raman

also one can look at Android for Nitrogen8M Mini (it has wm8960 codec)

https://boundarydevices.com/wiki/android-for-nitrogen8/ 

Best regards
igor