Garry's Mod is the only game that does this and I dunno why. Can't seem to find anything on google that helps. Whenever I talk in-game, a lot of the time some people just won't hear me and it's pretty annoying. My mic volume is fine in Discord, and other games where I frequently talk. My mic volume is turned all the way up in Windows, Steam and my SteelSeries headset app. Any pointers would be appreciated.
the voice tab in gmod optinons could work, You could also set up voice meeter. Thats what i use to make my mic sound alot better and the gain for the quiet ness.
With Voice Meeter you can set the gain higher but if thats not it, Maybe steam voice settings or gmod. If that doesnt work or already hasnt work idk chief thats all i got sorry