Any way to improve sound quality on NO$GBA emulator?

I swear, with any game I try out it sounds like total crap and it sometimes gives me a headache. I just want to play my games without having to deal with this annoying sound of static and such.

Fiddle around with the sound settings, and make sure you are using the latest version.Otherwise, it's probably a hardware incompatibility that is causing the sound issues. Some people get really bad static sounds, and others don't, even though they have the same settings on the emulator.

yea mostly depends on what gmae ur playing

Well it's version 2.6a of NO$GBA.
I'm playing both 'Drawn to Life' and 'Scribblenauts' both downloaded from this site.

i think that the version of the emulator i have

There's a few addons which improve sound, look for them on the Ngemu forums. Otherwise, you'll have to just live with the sound. It's common for everyone.