I checked the list of H40-SGTL controls, I dont see any field with the name suiting Mic Gain or something related to Mic Gain, so I dont know which amixer control , field should we modify to increase the Mic Gain.
As of now, our MIC functionality is working, we are able to record the voice and save it in a .wav file. The saved wav file can be played back using aplay command. However, will try to mail the codec vendor about this query of how to increase the Mic Gain through amixer controls.
Ok fine.
I read in the below thread in this forum
It may be related to some pulse audio functionalities or changing some of our I24 controls like … “I2S4 mono to stereo conv” to “copy”
“I2S4 no of channels” to “2” etc might help us to fix this issue, so was asking.