It may be cost prohibitive, but I was just curious of the maximum # of bands that would be realistic for an Arduino-driven spectrum analyzer. I see the 7-band spectrum analyzer frequently. That's fine for a nice visual effect, but I wouldn't mind having one that actually had some purpose in my recording studio. Off hand, I think 31 bands would be the bare minimum. Is this possible with the Arduino? What about 2 Arduinos?
Brandon