Sonic Shadows, a site-specific installation at San Francisco Museum of Modern Art
November 20, 2010 – October 16, 2011
Commissioned for SFMOMA's 75th anniversary, Sonic Shadows transforms the dramatic circular skylight and fifth-floor steel truss pedestrian bridge into musical instruments, acoustically translating the physical space. The artist's first truly kinetic sound sculpture utilizes moving hypersonic speakers and vibration sensors that respond to visitors' footsteps, integrating ambient sounds recorded in real time from inside and outdoors. Reflecting off the turret walls, narrowly focused ultrasound beams from the speakers are audible on the bridge and encircling staircases.
(scroll over for alternate view)