Study for realtime analog video feedback
scored installation for HD camera, cathode tube TV and subwoofer | indeterminate
2017
"Rarefatte aggregazioni" began as accompaniment for a piece by composer Ada Gentile for guitar quartet. Originally the video itself was never performed, which led me to develop an installation as a study of how sound could control a visual feedback.
I used linear feedback between a CRT TV and a digital camera aided by a subwoofer that emitted sounds with very low frequencies that trigger unexpected visual responses.
I predetermined some sounds that interfere at the mechanical level with the analog signal from the TV. This creates a controllable space and a context subject to several variables such as the type of TV that might change from one presentation to another, the type of subwoofer, and most importantly two essential elements such as the acoustic environment and the camera angle and its internal parameters. In this way, a small visual ecosystem was created that was self-managing with the help of sound.
Just as mushrooms in the woods that do not grow if the soil is not disturbed by an external factor, the visual patterns would not appear without the sonic disturbance.
