Uses custom designed neon tubes. Ultrasonic rangefinders pick up audience position and motion. Light flows and shifts color with motion and stillness of audience. Sound samples morph and locate in space. Sounds are made from samples of spinning objects and digital sound and signal processing.

Audience activated and processed sound and 3-d imaging in a weather balloon Video chapters can be shifted by audience nearness to the weather balloon that acts as a screen and container. Sounds are played back through objects that act as loudspeakers; bowls, vases, pipes, and other found objects. Sound samples are live-processed by the audience participant?s motion , position and stillness.

A dry rock garden with natural copper conductors radiating fields, Sounds shift and distribute themselves time-sharing and orienting themselves to the presence and activity of the viewers.

an interactive light and sound installation Using capacitance and ultrasonics to pick up audience motion and respond with sound events radiated from highly directional homemade loudspeakers (the bowl, vase, horns on the ceiling and in boxes.

Sound activated installation of waves and responsive sound whistles and delayed and transposed responses. The Aluminum table structure was made to resonate like as teel drum at multiple frequencies, each resonant to a sub audio frequency to create waves. Tuned resonant filters and compressors listen to audience sound and respond in phrases, volumes, and pitches in surprising relationships and with waves.

Sound Syzygy was part of an installation commissioned by the Walker Art Center for John Cage's 60th birthday. It uses three ultrasonic range finders to locate and feeds back a quadraphonic synthesized soundscape.

This interactive sound installation uses sensors to locate fish (light) and audience (ultrasonic) and feedback sound and light structures. The idea for this work is taken from a childhood experience of ice skating on a pond filled with swimming carp.

Sunspots is a site-specific sound installation that is tuned to the room in which it's heard. Audience presence and nearness to a copper coiled arch and suspended brass screen determine the combination of sounds.

Fish and audience activated environment with a pool of koi and sand paths for audience observation and interaction. Two ultrasonic systems are used to sense the fish and the audience.