https://bugs.winehq.org/show_bug.cgi?id=40203
--- Comment #5 from Engys engys@lumalab.net --- (In reply to Andrew Eikum from comment #4)
I'm using the Reaper v5.1 demo and WASAPI works with winepulse for me. Is upgrading an option? If not, can you upload a log with the channels from http://wiki.winehq.org/Sound?
I can also start Reaper with WASAPI on Pulseaudio in shared mode but it sounds horrible -> all over crackling. Same crackling sound but not that bad I got with DirectSound.
Tested this on two audio interfaces. The first an USB generic and the second a Steinberg CI2. Both with the same crackling sound.
Exlusive Mode does not work with WASAPI at all on Pulseaudio.
WaveOut works fine but has a much higher latency ~30/99 ms
Best latency and sound is with winealsa.drv and WASAPI ~20/24 ms