cymaspace's picture

Good tips to assign individual audio frequencies to individual 3D points?

Im starting to get a better understanding of how to manipulate lists but looking for tips on how to convert a real list of frequencies and their amplitude information into a list of 3D points where parameters about each points coordinates or shaded color values are affected by their originating frequency & amplitude real list data.

cymaspace's picture
cymaspace commented on Kewl's Discussion, “Audio visualisation, Harpex style

I see it, that was the same as @Jaymie harpex-imitation.vuo composition. The part that I am trying to wrap my head around is how to create many points or objects from the "calculate amplitude for frequencies" node output real list that are positioned around a sphere and then their individual placement on that sphere is adjusted according to their frequency and amplitude.

Kewl's picture
Kewl commented on Kewl's Discussion, “Audio visualisation, Harpex style

Check the audio input part.

cymaspace's picture
cymaspace commented on Kewl's Discussion, “Audio visualisation, Harpex style

Thanks Kewl. Strange the .vuo composition you uploaded appears to be the same as the one I uploaded. What nodes did you change?

Kewl's picture
Kewl commented on Kewl's Discussion, “Audio visualisation, Harpex style

I actually never tried Make Random Points Object: it's all oval layers, no copies. I simplified the audio input part of your composition.

cymaspace's picture
cymaspace commented on Kewl's Discussion, “Audio visualisation, Harpex style

Kewl did you end up using ovals with copy layers or stick with Make Random Points Object?

It took me most of the afternoon but I was able to figure out a way to convert Calculate Amplitude for Frequencies real list data into a single integer as a "frequency variable" to adjust x or y parameters for a single 3D object. I am now trying to work in some more algorithmic approaches to generating points using parametric equations that can be affected by this frequency variable but it doesn't seem to be the most efficient way of going about it so if you have any tips that would be most appreciated.

Georgie's picture
Kewl's picture
Kewl commented on Kewl's Discussion, “Audio visualisation, Harpex style

Thanks! It evolved into Waiting for Domo, and there's a newer version coming along. Since this composition is the basis for an eventual show, I'll keep it to myself for now. But I'll be glad to answer specific questions that you might have.

Waiting for Domo

Kewl's picture
Kewl commented on cymaspace's Discussion, “Identify largest item in list

Is the number of items in the list fixed or can/will it change while the composition is running? What is the range of the variable values?

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