I recently bought a PCM2704 USB sound card, which is purported to work out-of-the-box with raspbmc. I've enabled the experimental audio drivers, but now I get pretty bad A/V sync issues. Of course, I can tweak the audio offset in XBMC, but this is 1) annoying as all hell to do for each video file and 2) the offset is not stable -- it changes over time.
I know very little about linux audio, and I'm unsure how to proceed. Any advice would be most welcome!
