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I'm using LineageOS (it says it is Android 10).

First time I'm trying to use headphone mic, and I got very surprised (and very, very pissed) that there isn't anything in Settings where I can regulate which mic do I want to be active, and the gain/volume for the microphone.

So is it possible to change microphone settings in LineageOS - and if so, how?

sdaau
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1 Answers1

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I also had a microphone volume problem in recording apps (not on phone calls).

It's probably very device and OS specific, but I was able to change it by editing /system/vendor/etc/mixer_paths_0.xml. It requires root to mount /system -o remount,rw and to write the file.

In the following section I changed the MIC3 Volume value from 4 to 25 :

        <path name="gain-media-headset-mic">
                <ctl name="MIC3 Volume" value="4" />
                <ctl name="MIC3 Boost Volume" value="2" />
                <ctl name="ADC Left Gain" value="127" />
                <ctl name="ADC Right Gain" value="127" />
        </path>

The phone is on LineageOS 16 (Android 9).

Michaël Witrant
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