Software that can record, play, edit and often compress audio files
Constantly updated open source audio editor with support for mp3s and VST effect plug-ins
Wavosaur is a powerful free audio editor for Windows XP, ideal for editing audio clips, sound designing, mastering, audio mangling and recording of your digital audio sounds.
A basic audio editor which was the predecessor to Adobe Audition
SoundEditor is a fast and free open source audio editor that works without installation in the registry
Moduloop is a standalone sound mangling/manipulation tool made using MAX/MSP, specifically geared towards users of drum loops
QuickAudio lets you edit, play and record digital audio as well as convert between various popular audio formats
Simple and free .WAV audio editor including the most common effects
Simple WAV/AIFF audio editor designed by Yamaha to edit samples for their hardware samplers
A drum loop editor with support for VST 1.0 plug-in effects
SoundEngine Free is a simple and stable free 2 channel wave edit application software for mastering and track/sample edit