NitroGL
Active member
(Red peaks = Left channel, Blue peaks = Right channel)
http://evilman00.multimania.com/vis.zip
Application independent audio visualzation (like Winamp, only it doesn't matter what application you use).
Features:
Realtime Waveform capture (using DirectSound).
Realtime FFT.
Realtime Visual using OpenGL.
Low CPU usage (on my 1.2GHz Athlon, it only uses at max 6%).
Very fast and accourate ( +/- 2ms lag, depends on system and sound card though).
Enough of that for now
Also, here's the source code for TruQuake:
http://evilman00.multimania.com/TruQuakeSRC.zip
HaVe FuN!