I am looking for a phase vocoder in javascript or some kind of pitch / time shift algorithm that I could use with webaudio when changing the playback speed to prevent the pitch from changing.
edit: I found https://github.com/also/soundtouch-js however it is not perfect because it must have access to the full source file; I am developing a system with several tracks (each with its own gain control); so ideally I would need a system with which I can connect all my nodes, instead of combining them or creating multiple soundtouch systems.
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