https://bugs.winehq.org/show_bug.cgi?id=37574
--- Comment #15 from Andrew Eikum aeikum@codeweavers.com --- (In reply to Alex from comment #14)
Yup, 90% of my audio comes over USB A2DP Bluetooth via Pulse -- /that's/ why I know actually problematic latency when I hear it :)
I get my wine builds from the ubuntu-wine PPA, per https://www.winehq.org/download/ubuntu, on the assumption that this represents the closest-to-intended "stock" environment. Would be happy to switch to some more "official" build if it's as easy to maintain.
Okay, thanks. Probably this is reproducible with winealsa, too. USB audio through PulseAudio just generally isn't in a good state.
If you want to keep trying to fix this, I'd recommend contacting the winepulse maintainer, Maarten: http://repo.or.cz/w/wine/multimedia.git. He may have some tips for how to improve your USB device's behavior in PulseAudio.
I think we should leave this bug open for now since USB audio is also bad under winealsa.