This is all ancient history, but it's a cool thing I made, so I'm leaving it up even though it's no longer of any practical value. Nowadays, people (by which I mean "you people" or "kids these days") stream music to your phones, but for a brief moment people had audio files on their computers and local software to play them. This is a visualizer plug in for one such player. I wrote it when I was working on my dissertation.
|Just the binary||linux-i386|
Waterfall is yet another XMMS spectrum analyzer. While most analyzers only show a changing snapshot of the current sound, waterfall shows a scrolling spectrogram, a 2-d plot of frequency vs time, with energy represented by intensity. There are also options to use color to display stereo discrepancies, frequency onsets, or frequency uniformity.
You need unix, X windows, XMMS, GTK, and glib.
I use it on Debian and Solaris, and I'm told it runs fine on RedHat.