It took me a while to figure out whether I was reading the spectrogram totally wrong, since it did not seem to correspond to the music that was playing.
I found out that if I limit foobar2000 to a single core the problems dissapear and the spectrogram now is easily recognizeable and looks great on my second monitor.
System:
Athlon 64 X2 Dual Core 3600+, 2GB Ram, Windows 2003, Ausus A8N sli with onboard sound
Symptoms:
The spectrogram is drawn at an irregular speed, and most sections of it are randomly repeated or omited.
Besides that, the spectrogram is a great addition to foobar.
while I am at it, a feature request:
something I would really like to see would be the ability to display the spectrogram as a single mono channel, but use different colors depending on the difference between left and right stereo channel.
That way it would be easy to visually distinguish instruments or voices that are spatialy separated in the recording.
I have a concrete image of how this could be done, where would be the best place to suggest this feature?
EDIT: nevermind, I found this thread for spectrogram feature requests