** Experimental JavaScript port Pure Data http://mccormick.cx/dev/webpd/ with demo http://mccormick.cx/dev/webpd/demos/processingjs-basic-example-with-audio/index.html
* FFT visualization (calculated with C++ - mozSpectrum)
** http://bocoup.com/core/code/firefox-fft/audio-f1lt3r.html (video [http://vimeo.com/8872704 here])
** http://blog.nihilogic.dk/2010/04/html5-audio-visualizations.html (Demo and API by Jacob Seidelin -- video [http://vimeo.com/11355121 here])
** http://ondras.zarovi.cz/demos/audio/
** http://code.bocoup.com/processing-js/3d-fft/viz.xhtml