i had found this info if some ppl have sound issue's with game it help me.......


a) Run a Bf3 game.
b) Windows BF, alt tab out of BF3 so can see your windows desktop.
c) Right click system tray speaker icon - select "open volume mixer"
d) Drag the mixer window to make the window larger to reveal the BF3 volume slider.
e) Adjust the BF3 volume back up.

To prevent this from happening again,

Go into Teamspeak Plugins, and uncheck volume control feature.