Made for the exhibition Invisible Fields at Arts Santa Monica in Barcelona Spain.

20 Hz observes a geo-magnetic storm occurring in the 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.

Probe the limits of my perception is right. Near the end I was thinking “how could a person possibly create these patterns on purpose?” before I RTFM and saw it was rendered from found data.