Wavosaur is a free audio editor with VST support and many features for editing
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It can change MP3 tempo without changing pitch.
It's an ideal solution for MP3 audio recording, editing and mastering.
Slice beats with a simpler workflow.
Eahoosoft Free MP3 Cutter Joiner consists of a free MP3 Cutter and a MP3 Joiner
A software synthesizer that enables you to hand draw waveforms and envelopes.