UPIC System
Definition
The UPIC (Unité Polyagogique Informatique du CEMAMu) is a digital composition and synthesis workstation created by Iannis Xenakis that allows users to compose music by directly drawing lines and waveforms on a digitized graphic tablet.
Key Characteristics
- Direct 2D mapping of visual graphic gestures into acoustic frequency, duration, and amplitude
- Custom drawn waveform oscillators replacing standard Fourier harmonics
- Non-hierarchical interface enabling intuitive spatial composition
Applications
- Graphic score generation and visual music software
- Interactive touchscreen audio visualizers and spectrogram re-synthesis
- Creative coding sound tools (Tone.js, Web Audio API frequency mappers)
Related Concepts
Related Entities
Mentions in Source
- “The UPIC turned drawing directly into sound synthesis, erasing the division between graphic geometry and musical notation.” — Iannis Xenakis and UPIC