Body Language

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Body Language represents the second generation of interactive sound installations Rokeby created. The installation used three hand-built low-resolution (8x8 pixels) video cameras (see image above) to observe a 5 metre by 5 metre space. The images from the cameras are digitized by a system that used 3 6502 processors in parallel. This information about motion was relayed to an Apple ][ computer. The computer searched for movements in these images, analysed them and created sounds in response, simultaneous to the movement itself. The sounds were produced by custom software running on a Mountain Hardware Digital synthesizer sitting in the Apple ][. Any movements made by people within the space create sounds whose qualities reflected the qualities of the movements. (source: http://homepage.mac.com/davidrokeby/body.html)