SoundManager 2 : Using HTML5 and Flash, SoundManager 2 provides reliable cross-platform audio under a single JavaScript API.
meSing.js : meSing.js is a JavaScript singing synthesis library that uses the Web Audio API's DSP capabilities in conjunction with the meSpeak.js speech synthesis...
jsfx : This is a javascript library (with frontend) for sound effect generation.
Web Forms : Web Forms 2.0 Cross-Browser Implementation
meSpeak.js : meSpeak.js (modulary enhanced speak.js) is a 100% client-side JavaScript text-to-speech library
An interface for the Web Audio API that supports rhythms, multiple instruments, repeating sections, and complex time signatures.