Ess is a sound library that allows sound data to be loaded (AIFF, WAVE, AU, MP3), generated (sine, square, triangle and sawtooth waves, white and pink noise), manipulated (raw or via built-in effects), saved (AIFF, WAVE), analyzed (FFT) or simply played back. Ess is built on JavaSound and as such requires no additional plug-ins, just Java 1.3 or better.
After playing my first waveforms made with Ess I’m thinking of having this in flash. This kind of sound support would give me a new field of activity besides game development. I will definitely play with it the next time.