導演/Director : Ruth Jarman and Joe Gerhardt

20Hz觀測一個在大氣上空由地表磁力所引起的風暴。將CARISMA無線通訊系統所收集產生的資料轉化成音訊，並以音頻20赫茲紀錄，我們得以聽到連續不斷的太陽風隆隆的風聲。而那些實體、如雕刻般的自然影像也是直接由聲音轉換而來。不同頻率同時影響聲音及影像，也因此造成了複雜的樣式相互干擾的現象，刺激我們原本受限的感官認知。

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.