https://bugs.winehq.org/show_bug.cgi?id=43846
--- Comment #13 from andy andy86@fastwebnet.it --- Sorry, I meant 4.9 fixed something, not 4.8.
Maybe this:
Ethan Lee (1): xaudio2: Use new features from FAudio 19.06 (but keep compatibility for <=19.05).
and
Nikolay Sivov (50): xaudio2: Fix 32-bit build.
Has fixed this bug.