SNES emulator has been updated recently. Changes:
- Added video synchronization support at long last [blargg, byuu];
- Added audio panel to control volume, latency, frequency and SNES input frequency settings;
- Added driver panel to select APIs to use for video, audio and input;
- Added crash handler for driver initialization;
- Xv and SDL video drivers now work with compositing enabled on Linux/Xorg;
- Improved ALSA audio driver for Linux;
- Now using a fixed output frequency, along with a 4-tap hermite resampler;
- Improved header detection; fixes Batman: Revenge of The Joker and a few fan translations;
- Frameskip will now randomly choose a frame in each set to display; helps with animations;
- Locales now support meta-data, which allows for unique translations of the same English input.

http://byuu.cinnamonpirate.com/