This is a program for representing sounds visually. It goes beyond
the usual oscilliscope style program by combining an FFT and stereo
positioning information to give a two dimensional display. Some of the
shapes I have observed are:
* Drums: clouds of color, fairly high
* Clean guitar: several horizontal lines, low down
* Rough guitar: a cloud, low down
* Trumpet: Lots of horizontal lines everywhere
* Flute: A single horizontal line, low down
* Voice: A vertical line with some internal structure
* Synthesizer: All kinds of weird shapes!
