Things got busy around the office so I haven’t gotten around to cleaning up the source code for this project. But I did get an audio responsive version working.
You can see a three screengrabs here, here, and here. To make these images, I have each particle responding to a different frequency of incoming audio. As the audio gets louder, the particle’s charge and mass increases. This makes ‘loud’ particles push away from the center.
I will post a video of this project as soon as I can.