The Daily Shaarli

Cecilia is an audio signal processing environment aimed at sound designers. Cecilia mangles sound in ways unheard of. Cecilia lets you create your own GUI using a simple syntax. Cecilia comes with many original built-in modules and presets for sound effects and synthesis.

Soundgrain is a graphical interface where users can draw and edit trajectories to control granular sound synthesis. Soundgrain is written with Python/WxPython and uses Pyo as its audio engine.

Open-source library and tools for audio and music analysis, description and synthesis

meSpeak.js (modulary enhanced speak.js) is a 100% client-side JavaScript text-to-speech library