When in game, most sounds come out scratchy-sounding, or buzzing. It's not my computer or drivers, it's only when I play Planetside 2. I've had this problem before. The last time I fixed it by deleting some stuff in the game folder and validating the game. I can't remember what I'm supposed to delete to fix the problem, I'll search around the forums for a solution. Just letting you know the problem still happens sometimes.