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SoundTouch is an open-source audio processing library for changing the |
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tempo, pitch, and playback rates of audio streams or files: |
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* Tempo (time-stretch): changes the sound to play at faster or slower |
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speed than original, without affecting the sound pitch |
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* Pitch (key): changes the sound pitch or key, without affecting the |
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sound tempo or speed |
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* Playback rate: changes both the sound tempo and pitch, as if an LP |
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disc was played at wrong RPM rate |
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The SoundTouch library is suited for application developers writing sound |
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processing tools that require tempo/pitch control functionality, or just for |
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playing around with the sound effects. The source kit includes also an |
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example utility SoundStretch that allows processing .WAV audio files with |
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command-line interface. |
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WWW: http://www.surina.net/soundtouch/ |