https://bugs.winehq.org/show_bug.cgi?id=37422
--- Comment #5 from Artem S. Tashkinov t.artem@mailcity.com --- (In reply to winetest from comment #4)
winecfg says winealsa.drv
To me this is fixed. wine 2.3.
Tried both channels seperated and mixed.
It sounds fixed however the generated sound doesn't match what's inputted*. So, suite yourself whether to close this bug report or not.
* i.e. the resulting frequency for high frequencies is way off, i.e. enter anything like 15KHz and compare to e.g.
$ play -n synth 10 sin 15000
(sox must be installed).