You'd want to use 10 parallel band-pass filters, splitting the signal into separate frequency bands, then use the bars to determine the amplitude of each band... haven't gotten around to looking into Minim (etc.) yet, so I can't give you any more detail, but that's the principle your after... Check out the Band Pass Filter example.

thanks- anyone got any more specifics or can anyone post a  link to an example i can analyse?

hi guys,