GRM Tools Atelier
INA grm
GRM Tools Atelier is a modular environment for creative sound manipulation and generative synthesis. It comprises freely chainable processor and modulator modules — including granular sample playback, spectral filtering, pitch shifting, multi-tap delay, and comb filtering — with a polyadic modulation engine and unbounded multichannel processing, used in electroacoustic composition, sound design, and immersive audio.
History & Background
Developed by INA grm (Groupe de Recherches Musicales de l'Institut National de l'Audiovisuel), founded in 1958 by Pierre Schaeffer in Paris. Atelier is the successor platform to the GRM Tools 3 plug-in collection (19 plug-ins) and shares no code with its predecessor. Lead developer Matthias Puech, also known for the 4MS Ensemble Oscillator and Tapographic Delay code. First presented at Superbooth 2025.