After playing with some of the "spectrum anyalizer" type visuals, I noticed that on a lot of my music, there was very little activity on the right side of the spectum where the higher frequencies are. I thought that I was hearing them but they wern't showing on the visual. Are the visuals ment to be very accurate? I decided to do a test. I used this fequency sweep to check the Spectral Plot visuals like Spectrometer 128. The results showed that the visual is not very acurate. Are others experiencing the same thing?

The Frequency sweep is located at:

http://www.ridges.dynip.com/images/response.mp3
Thanks,
Steve