HalfOctaveVUDemo.pde
Dave Bollinger Mar 2007
http://www.davebollinger.com

Demonstration of log-sized averaging bins for FFT analysis.
Note how strongly you can distinguish the kick (bands 1&2)
from the snare (bands 7&8) from the hihat (bands 15&16) in
this snippet from the intro of Cameo's "Word Up".
('fair use' ought to cover using this one bar as demonstration material)
That would not be the case with a similar number of averaging
bins if allocated linearly across the full spectrum - instead
what you'd find is that both kick and snare probably fall into
the same bin, or at least have a great deal of crosstalk.

Source code: HalfOctaveVUDemo FFTOctaveAnalyzer

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