npm

sound-touch

Audio processing library for time-stretching and pitch-shifting

brewmacoslinux
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Source

About

Audio processing library

Commands

soundtouch

Examples

Apply time-stretching to slow down audio by 20% while maintaining pitch$ soundtouch -tempo=-20 input.wav output.wav
Shift pitch up by 5 semitones while keeping original tempo$ soundtouch -pitch=5 input.wav output.wav
Apply both tempo change (-30%) and pitch shift (+7 semitones)$ soundtouch -tempo=-30 -pitch=7 input.wav output.wav