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Fragment Synthesizer - 150 fps live additive synthesis patches

Fragment is an online collaborative additive / spectral and soon granular live-coding web. platform, the spectrum is created by a live GPU script, the generated visual is then converted to audio by an additive process (re-synthesis).

This is a video of a long live patches coding session which use many features of the synthesizer, 32-bits float pixels value, feedback, multi-channels, MIDI, pKey for glissando, audio import aka resynthesis, webgl 2 features.

The Chrome browser was launched with "--disable-gpu-vsync" the spectrum slices are read 150 times per seconds.

The source-code of the script which is used to produce all sounds in this video is available here :

source-code

Reverb and a delay effect is sometime added inside Renoise (DAW), all other effects come from the synthesizer directly, MIDI sequences are sequenced within Renoise.

Official website : https://www.fsynth.com