An exploration into visually representing sound.
I created an application in Processing that generates ring patterns (*unfortunately there is no sound) based on direct interaction or file analysis. The sounds are represented by three things: color is tonal range, size is duration, and thickness is volume.

The video shows the 3 input modes in action:

1. load mode (midi file)
2. move mode (laptop movement)
3. key mode

source and a few more details

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