Snes emulator

Hello

Somebody have a problem with sound in snes games ? Sometime a sound does not sound , sometimes sound two time.
For example i played yesterday boogerman :-)

and when i click on button "Booger!!!" he say two time , sometimes be normal.
when i get red cape he is sielent, sometimes be normal too.

I have never had sound issues in SNES9x. It may just be the game.

I have no sound trouble. The problem I am having is after I save a game say for The Legend of Zelda A Link to the Past. I can save the game, my problem is when I go to play it again. I don't see the saved game. Anyone here know what may be the issue.