sound analysis spectrogram spectrum

Audio Spectrogram

aikan's picture

Hi everyone, I'm new in Quartz Composer, and looking for someone's help to explain me how to make an audio spectrogram visualizer (like this http://nickrossiter.org.uk/hbweb/24%20hb%20juv%2021%20sept%202005%20sout... ).

I know that I better have to search (and to introduce me in the forum), but after a few hours I haven't found someone who did that before. And I don't have sufficient time to learn how to use QC correctly to make it by myself. The visual effect I'm looking for is a kind of sound data visualisation, where sound can be displayed in real-time (so the spectrogram has to slide continuously).

Anyone has got an idea on how to do that ?