Dynamic .WAV Generation in JavaScript

http://sk89q.therisenrealm.com/2008/11/dynamically-generating-a-wav-in-javascript/

This plays a sine wave by generating a .wav file on-the-fly and playing it through an EMBED tag linked by a data URI. No external files are used to play the sine wave.

Be aware of the following caveats:

• This has been tested to work on Firefox, Opera, Safari, and Chrome.
• You need to have a plugin to play the .wav files, and it should support "auto-play."
• The generated .wav files cannot become too large or otherwise browsers will not process them. The default settings are known to work.
• The tracks on a normal CD (Red Book standard), for comparison, are sampled at 44,100 Hz and has 16 bits per sample.