Volume cuts off 50% after entering a multiplayer game

I’m tired of this, every time I join a multiplayer server, my volume goes from 100% to 50% and I can restore the volume by turning the volume button up in my speaker, but then all sounds like music and steam message sounds sound very loud. What the fuck?
I have a Sound Blaster x-fi titanium fatal1ty soundcard, if that helps.

I’ve noticed this even with my onboard realtek sound. REALLY ANNOYING.

I think I fixed it by alt+tabbing and manually setting volumes to top again, then tabbing back in.

Disable the option in Windows 7 which dims the volume settings when voice communications are detected.

Yeah, did that a moment after I made this thread, thanks though. And it works now, my volume stays at 100% after joining a multiplayer game.