Equilibrium (2011) – Roberto Pugliese

Roberto Pugliese

In Equilibrium, Roberto Pugliese plays with the acoustic phenomenon of feedback. Feedback arises when a microphone is so close to a loudspeaker that the microphone’s acoustic signals create a circuit that gets amplified with each new cycle.

In this work, the Neapolitan sound artist and composer has positioned a lever with an attached microphone in front of every loudspeaker. The seemingly natural movements of the computer-controlled levers result from an attempt to keep the feedback sound in balance. Roberto Pugliese programmed special software for this purpose. Since the sound tends to amplify itself, it is impossible to maintain it at a constant volume, so the levers stay in constant motion. The robotic units behave differently due to the different features of the loudspeakers.


Sound sequence: Equilibrium, 2011

Abb.: © ZKM | Karlsruhe, Foto: Steffen Harms