Has anyone tried to build a 3d spectrogram in PD?

I saw Luke Dubois use one here :

I'm assuming that this is a MAX patch, but maybe it's a stand alone program. It seems like it would be possible, with some degree of expertise, to do this in GEM.

Any thoughts?

Hi everyone!

I'm building a patch that is supposed to "convert" a live video stream into a sound. Actually the video comes from my webcam. I want to sample the video into frames (for example 10 fps), and "print" them into the spectrogram, like COAGULA or the Beepmap in Fl studio. In the spectrogram, we can "read" the video, just like a comic, a bit like the work of Norman McLaren.

What I have in the output of my webcam is a gemlist. What can I do with it? How to convert it into a sound?

I'm fairly new at Pure data, but I have to finish the patch for the next week!
I'm waiting for your help,

Thanks

Indiana

i have an EEG signal from 0.2 to 100hz i need something to find the dominant frequency with the highest amplitude and visualize in a number box the frequency, something like a spectrogram but with a numeric output of the most power frequency. I need to do this in realtime but few ms of latency for now is not important.
My project is to do a biofeedback, i build the soundcardEEG from the OpenEEG project, so i have an eeg signal modulated in AM. I do the demodulation with a Hilbert transformation, with some lowpass and bandpass. Now i have to drive binaural beats with the dominant frequency "came out of my head", the realtime is only important for other analysis like the p300 potential, for see only the rhythm of the brain i don't need a "real"realtime, 1 second of latency isn't a problem.

i will try what is fiddle~ thanks