This thread has a few tricks to try, plus you might want to try fiddling with this:
Code:
$zsnes32 --help
-ad <> Select Audio Driver :
auto = Automatically select output
null = Null output
nas = NAS output
oss = OSS audio driver output
alsa = Advanced Linux Sound Architecture (ALSA) output
esd = ESounD output
arts = aRts output
sdl = Simple DirectMedia Layer output
Don't know what your audio situation is currently like, but if your sound works at all, hopefully one of those options should help you.
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