20Hz / 20Hz
United Kingdom / 2011 / 5' 0''
Director: Joe Gerhardt, Ruth Jarman
Animation: Joe Gerhardt, Ruth Jarman (Semiconductor)
Sound: Audio Data courtesy of CARISMA, operated by the University of Alberta, funded by the Canadian Space Agency (Canadian Array for Real Time Investigations of Magnetic Activity) Special thanks to Andy Kale
Computer graphics: Joe Gerhardt, Ruth Jarman (Semiconductor)
Modeling: Joe Gerhardt, Ruth Jarman (Semiconductor)
20 Hz observes a geo-magnetic storm occurring in Earth's upper atmosphere. Working with data collected from the CARISMA radio array and interpreted as audio, we hear tweeting and rumbles caused by incoming solar wind, captured at the frequency of 20 Hertz. Generated directly by the sound, tangible and sculptural forms emerge suggestive of scientific visualisations. As different frequencies interact both visually and aurally, complex patterns emerge to create interference phenomena that probe the limits of our perception. Co-commissioned by Arts Santa Monica + Lighthouse UK. Supported by the British Council.