Disable the noise simulator in ZSnes. This can help on some games but muck up som others. Reverse Stereo Reverses the stereo sound. Surround Sound Adds 3D sound effects to games Sound Buffereing Allocates some memory for sound which should clear up clicks and pops in games. Disable SPC Emulations Disables the Snes SPC sound processor.
Interpolation Smoothes out the sound produced giving a better reproduction.
Lowpass Simulates the Low Pass bass boosting chip on the Snes. It accepts codes from the Game Genie, Pro Action Replay and Golf Finger cheat systems. These cheats are entered as codes which you can get from the web. As you enter codes you can enter descriptions for each code and then save the whole lot as a .cht file. The fix button can be used to try and fix cheat codes that don't work.