Sound synthesis and audio signal processing environment
cecilia
cecilia lets you create your own GUI (grapher, sliders, toggles, popup menus) using a simple syntax.
cecilia comes with many original builtin modules for sound effects and synthesis.
Cecilia is developed at the Montreal University par Jean Piche, Olivier Belanger and Jean-Michel Dumas. This manual was written by Tiago B. Vaz for the Debian project.