The sound in zsnes has been sort of skippy and missing notes for a few months now, so i looked around a bit on their forums and the cvs commits, and found a suspicious commit in sdllink.c, reverting it fixed the issues i had. Maybe someone else has them too? Reproducible: Always Steps to Reproduce: 1. start a game in zsnes 2. make sure sound is on 3. play some music in the game Actual Results: The music and sound was irregular and skippy. Expected Results: Play it like it normally. will attach patch.
Created attachment 44442 [details, diff] v1 basically reverses revision change 1.134->1.135 in sdllink.c with this commit message, 2003-05-19 03:43 pagefault * src/linux/sdllink.c: Fixes audio problems on broken drivers (Diablo-D3) so obviously it was meant to fix something, but it works better for me without it.
also see this thread if you want, http://board.zsnes.com/phpBB2/viewtopic.php?p=22864
I admit I'm not super excited about adding this patch to portage since the sound in znses works fine for me. I can see that there are several people in the forum link that have issues but I'd like it to be worked out upstream until there is another release of zsnes. I'm going to mark this as WONTFIX but feel free to attach an ebuild that uses this patch for people to put in their overlays. Thanks.