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Splitting audio into frequency bands and colours?

February 26, 2012 | 7:03 pm

Does anyone know if its possible to split a normal audio track .wav into separate frequencies for example linkin park, and create a patch that picks out the frequencies in realtime, a bit like scope~ object but having multiple objects to visually show the active frequencies iered for 0 to 100hz, orange 100hz to 1000hz etc? any one know if this is possible or has a patch or link to one?

i know theres a sonogram but i wanted a sonogram in waveform rather than just a block with colours all over it…

many thanks

flypro


February 26, 2012 | 7:36 pm

what about having some bandpass filters going into scope~s if i understand your question?


February 26, 2012 | 7:40 pm

Hi woyteg,

i’ve tried that, just going through the filters doesn’t seem to really work…. its not accurate enough
i dont think :/ i’m using jitter as well to try and get a much smoother signal…


February 26, 2012 | 7:41 pm

Heres what ive got so far….

Attachments:
  1. consequence.maxpat

February 26, 2012 | 9:50 pm

When you say it’s not accurate enough do you mean the filter slopes are not powerful enough? If so you could try using the cross~ object or perhaps some fft based filtering?

Your project looks interesting, what is it for?


February 27, 2012 | 12:19 am

hey benny,

Its part of a university assignment were i have to do a presentation talking about a specific artist and how they use electronics to influence there pieces, the only problem was i chose and artist were his piece concentrated on very subtle changes in the track so i wanted to create a max msp patch that could visually explain what we were seeing in real time… i will look at the cross~ object, im not very good with fft stuff but i will read up on and see if i can find a way to do it :)


February 27, 2012 | 1:24 pm

fffb~ * n° of filters and with a good resonance value and gain?


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