No audio under Interface + Windows

[theCapypara]

The Windows interface frontend build currently has no audio.
Culprit seems to be this commit: 9f4e699 (by @rofl0r).

I don't really know why anything there would break audio, but maybe I'm just missing something obvious. When the commit is reverted, audio works again, however the framerate drops to about 15fps.

[rofl0r]

and before that commit we had no audio in CLI. can you debug what's happening, and compare the audio setup code in win32 interface vs posix cli ? my guess is something isnt initialized.

[rofl0r]

from commit msg:

• fixed ignoring volume set by the SPU.

my naive guess is that the interface sets volume to 0, which was ignored in the past.