We created a public, interactive sound and light installation on Pioneer Square. It was up for a the weekend of June 24th - 26, 2016.

Exchange is an interactive sound and light installation that draws people into an unusual musical experience. Frosted LED tubes illuminate and play an accompanying tone as individuals move around the sculptural form. The notes and lights layer and harmonically resonate as multiple peoples’ motion trigger the piece simultaneously. This piece encourages interaction and inspiration between strangers using the language of musical experience. Supported in part by Houseguest, Pioneer Courthouse Square, Inc., Miller Foundation, and Oregon Community Foundation.

This was a 3 week push. As the co-designer/creator (with Ethan Rose), and sole programmer, I programmed microcontrollers to read 18 ultrasonic rangefinder sensors - which in turn triggered sound and light behavior designed and programmed in Pure Data. DMX is sent from Pure Data (using a MIDI2DMX) which we in turn wired to DMX relays and 72 tubes we filled with bright LED strips. I implemented the sound design in Pure Data using Karplus-Strong synthesis, and spatialized to 9 channels of audio in a circular array.

Date Created: June, 2016