Honestly, I fired up the client this morning and it was just pure crackling noising coming from my speakers from the game. I not sure how but the new patch has made this worse.
I've found turning off "digital signal processing" has helped. But I wouldn't mind this feature back.
(helped, not eliminated). Yes I use a SB0090 Audigy 1. But I haven't encountered this problem in ANY OTHER GAME/PROGRAM. Also my soundcard and surround system have a digital connection (3x SPDIF) so it's not a cabling issue.