Wavosaur is a free program to edit sounds (wav, mp3, aiff ...) it has all the basic edit functions, cut, paste, delete, mix, trim, reverse the sound, pitch shift, resample, zoom, record your own sounds and add VST effect. You can add unlimited set of effects, thanks to the VST support, and listen in real-time while tweaking the parameters on the VST graphic interface. Add loop points and markers, change editor skin, export multiple wav.