Probably not a significant sound issue, but although I hear music, I don't hear the speech and weapon sounds that much. An explosion is barely audible and I can't hear what the worm is saying. I already set the sound volumes to maximum. Is the sound projection based on distance in the game?

Sorry for bumping this thread but I ahve the same issue anyone figured out the solution yet?

Do you have anything like WinAmp active in the background? Even if it's not playing?

No there is nothing running in the background and I am using the x-fi fatality sound card and I have switched to game mode, other games work perfect.

I have this same problem.

Sound effects and speech are completely overshadowed by music, even when music volume is turned down significantly via the options menu.

Sound FX and speech sound far too faint. I have a SB Audigy, and all my other games work flawlessly (BF2, IL2, CS, COD, etc)

In my case this sound problem stopped when I turned on Sound Acceleration in DirectX