CHOP data to particle data using expression

I am new to Touch and I know a bit about expressions. I would like to get the data from a null with 2 chan of audio into the turbulence z of a particle system. I would essentially like the amplitude to drive the turbulence.

Also how to get color picker data to chroma key

Hey,

have a look at this example here: wuestenarchitekten.com/297/soundviz-01-2/
It will give a good idea on how to control particles using point normals of geometry.

Further to get data from CHOPs to parameters of other nodes, have a look at the Export article on our Wiki: derivative.ca/wiki088/index. … HOP_Export

Hope this helps,
cheers
Markus

Thanks I will have to try that out. I have looked at driving the particles using normals however I want the particles to emait at a constant rate and just ad some noise whenever the emplitude reaches over a certain level