MP3 Splitter & Joiner - MP3 Splitter & Joiner is a MP3 audio editor.
Audacity - Audacity is a free and open-source audio production software suite that includes a surprising array of editing tools and recording systems.
Free MP3 Cutter - Free MP3 Cutter helps you slice off any unnecessary parts of an MP3 track you don't want.
Oceanaudio - Ocenaudio is a cross-platform, easy to use, fast and functional audio editor.
Shorts - Don't have time for long videos and audios?
GoldWave - GoldWave. Digital Audio Editing Software. Record • Restore • Convert • Analyze. Fully loaded to do everything from the simplest recording and editing to the most sophisticated audio processing, restoration, enhancements, analysis, and conversions.