by Martina Menegon, Stefano D’Alessio
TECHNICAL DESCRIPTION / The main part of the work is an aluminium plate that sounds and moves interacting with the environment. A piezoelectric sensor and an electrodynamic exciter are attached to the plate, connecting it to a computer. The computer catches the sound from the piezoelectric sensor, applies filters and output it to the electrodynamic exciter, creating a feedback. A servo motor pulls the plate dynamically in relation to the distance between the audience and the plate. This distance is measured by an infrared camera positioned under the plate, which is also turning down the output signal when no audience is tracked. The feedback sound is modified by the bending of the plate and two filters: the first changes the audio increasingly in relation to the plate bending and it is created by scanning the camera image and transforming the pixels luminance into a dynamic sound filter. The second filter individuates the continuous notes and cut them. The outcome is a feedback system that changes in connection with itself, the bending of the plate and the camera image.
CONCEPT / Object is a sound object that act following concept of action at a distance. This term was used in early theories of gravity and electromagnetism and consists in the interaction that is able to directly relate two objects that are distant in a space. The main part of Object is an aluminum plate that act like having the same electric charge of the audience, more someone get near to it more the plate is pushed away by a force that makes it bend.
This force affect the relation between the different parts of the object, which are plate, contact microphone, transducer, camera and computer. The communication created between these parts generates a sound that goes back to the audience changing continuously and unpredictably. This sound is the result of multiple interactions, but can be considered also as an object that connects again the elements that created it, an object that unify the interacting parts in one single system.
As Graham Harman argues: “we have a universe made up of objects wrapped in objects wrapped in objects wrapped in objects, as every object is both a substance and a complex of relations”. A connection between objects is an object itself, which creates bigger object together with the two objects that it connects. A connection is an object and a object is the consequence of a connection. Object is not an interactive installation composed of aluminum plate, contact microphone etc., but is the result of the interaction between the installation and a human body, two connected objects.
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