Note: this post is from 2007, outbound links may be broken.
ndc Plugs releases BrushStrokes v1.00
You play BrushStrokes simply by drawing. Gesture, sound and visuals are all very tightly linked.
Sound is generated in a manner similar to scanned synthesis, with two oscillators whose waveforms are obtained by scanning the x- and y-axis positions of the trail drawn by the user. The larger the gesture, the louder the sound, and vice-versa, when the mouse is not moving, no sound is generated.
- MIDI notes change pitch of the audio
- Mouse click freezes the motion of the brush (freezes the waveforms for the two oscillators)
- Automation for the position of the brush, and whether it’s frozen
- Automation is by way of recording your mouse movements
The ndc Plugs website shows a processing applet which demonstrates a slightly cut-down version of the visual part of the instrument.