the next imbnes will have better sound
http://imbnes.gamebase.ca/
here is the news from the site:
News for: 01-20-03
On this, the last day of my winter break, I've finished rewriting all the sound code for imbNES. Every channel has been redone and the DMC channel has been added. I thought some people might be interested in how it turned out so I recorded a before and after sample of music from Ninja Gaiden 2:
Old sound - Blah.
New sound - You be the judge.
I still have more to do before the next version is released but hopefully it will be worth the wait.