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.
These details are provided for information only. No information here is legal advice and should not be used as such.