A slide projector with its speed control connected to a light sensor pointed at the projection.
Overdrive electronics to beef up Michael Evan’s Theremin sound.
Motor-driven ratchets controlled thru MIDI – creating loudness without loudspeakers.
LASCDP = The Light&Audio Show Compact Disc Player. A hot-rodded CD-Player that plays a mono soundfile on one track, a PWM track for light control on the other. Authoring software implemented in Max/MSP.
Installation project for a kids show inspired by ‘Sendung mit der Maus’. The Elefantenbogenbrücke is a rainbow-bridge with step sensors that trigger samples as you walk across it.
The Topophonien project marks the point at which I turned my hobby of building music-related electronics into a job. Prior to this I had mostly tinkered with various guitar effect circuits, so when Sabine Schäfer approached me in 1990 with a request if I could build her a computer controlled spatialization mixer this was a rather tall order. Starting with a small 4×8 matrix with noisy VCAs and limited control, we expanded over the years to ever bigger systems with up to 40 DSP-driven channels and realtime spatialization control.