04-21-2020, 12:34 PM
I think pmos is using alsaucm (or its API level equivalent) to change profiles. You can see the changes this applies between the "HiFi" and "Voice Call" settings with:
It's a new tool for me, so the best I can suggest is checking the examples in the man page, and the alsa docs for generating the profiles.
Code:
alsaucm -c sun50i-a64-audio dump text