i found this similar but no solution attached : here
and i also made a thread previously: here
in short: mic volume adjust automatically lower when i speak loudly, but doesn't adjust higher when i talk in low voice. it's a feature? i don't want it, i want my mic volume/gain fixed (at 150%)
how i examined: in facebook (on chrome) call, and voice message i raised my voice and it gets lower, i get more loud, gain gets lower. i crossed checked it multiple times. And i am sure about the cause.