SoundTouch is an open-source audio processing library for changing the Tempo, Pitch and Playback Rates of audio streams or files: * Tempo (time-stretch): changes the sound to play at faster or slower speed than original, without affecting the sound pitch * Pitch (key): changes the sound pitch or key, without affecting the sound tempo or speed * Playback Rate: changes both the sound tempo and pitch, as if an LP disc was played at wrong RPM rate
WWW: http://www.surina.net/soundtouch/
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