Having the same issue since the latest patch. Did you try chaning your audio channels?
You do know under the audio options in game you can change your audio channels from 8-128. I was referring to it as a temporary fix although I still noticed it occasionally when I lowered mine from 128 but no where near as bad as it was. Also as a side note I wouldn't consider the hd203's as that great of a pair of cans. If you're ever looking at upgrading you should check out headfi.No I did not. And why would I? It has to work, not be jerked around and made to work. I got a good headset and Sound Blaster USB 24 bit sound card.
Not sure if the issue you are discussing is what I'm experienceing. I had this before the patch. Inititally I ran the game with onboard sound as I waited for delivery of my New soundcard (final element of my new build). I still get the exact same issue, now with an X-Fi fatality Championship series card (PCI-e).
It is like a Buzzing sound or an electronic echo sound it lasts for all of a second but it is annoying. All my other games do not have this issue. RO1, ARMA 2, BFBC2, TF2, BATMAN Arkham Asylum etc. I need to play the game some more to see if there is a correlation or if it is map specific. It doest happen all the time either but significantly enough to notice and be bothered by it.
It doesn't affect frame rates or anything like that so appears to be solely sound issue.
Cheers Carb
You do know under the audio options in game you can change your audio channels from 8-128. I was referring to it as a temporary fix although I still noticed it occasionally when I lowered mine from 128 but no where near as bad as it was. Also as a side note I wouldn't consider the hd203's as that great of a pair of cans. If you're ever looking at upgrading you should check out headfi.