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audio-tempo-changer.js

v0.2.0

Published

Portable pure-JS implementation of a phase vocoder for changing audio tempo

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Links

Git

Maintainers

velochyvelochy

Keywords

audiovocodertempo-change

Readme

audio-tempo-changer.js

A small, portable (~6kb compiled with closure) JS implementation of a phase vocoder for changing audio tempo, built for use in the audio-feeder project.

Mainly based on "Improved Phase Vocoder Time-Scale Modification of Audio" (1999) by Laroche et al, with some improvements based on "PhaVoRIT: A Phase Vocoder for Real-Time Interactive Time-Stretching" (2006) by Karrer et al. although some liberties were taken with the exact details of the implementation.

This code was originally written in HaXe and extracted from a commercial project to be released under MIT licence by the original author (Margus Niitsoo) with full explicit permission from his superiors.