MA EXHIBITION

TOWARDS A DEFINITION OF SOUND AS VIBRANT MATTER is a series of immersive sound installations exploring the materiality of sound itself. Investigating the emergent potentials of encounters between physical structure, natural resonance, vibration, wave interference and human bodies, Orecchia asks whether bodies, human and non-human alike, might be reconsidered in continuous ongoing formation rather than defined by physical stable shape, and if so, whether a certain level of autonomous agency can be attributed to non-human bodies.

TOWARDS A DEFINITION OF SOUND AS VIBRANT MATTER is the practice component of an MA by dissertation in Digital Arts by João Orecchia through the Wits School of Arts, University of the Witwatersrand.

Mobirise

Description of works

1. Entrance Passage
A constant sine wave of 87Hz projected towards the entrance causes a standing wave with nodes and anti-nodes - points of alternating higher and lower pressure - experienced as a fluctuation of volume as one moves through the passage, with a forced anti-node (loud peak) at the doorway.

2. The Table
Place both hands on the table. Two sine waves, one constant at 80Hz, the other moving continually between 70Hz and 90Hz, sent through the wooden table as vibration, can be felt as a shifting rhythm as the two tones drift closer and further apart.

3. Small Agencies
The objects in this room are excited by manipulated recordings of the empty rooms of the exhibition space. The resonant frequencies are accentuated and played through embedded speakers, the sounds further shaped by the characteristics of each object. Corruptions of the sound files, spontaneous injections by the memory-card-portable-speaker-device can be heard as chirps or glitches. (Please do not touch the objects, a delicate ecosystem is at play).

4. The Tunnel (Outside-In)
An exploration into infrasound - low frequencies below the threshold of human hearing, though always present and affective - led me to what is known as the Schumann Resonance, a very low frequency (7.83Hz fundamental) standing wave in the Earth-ionosphere cavity. This ever present sound, though inaudible to humans, is thought to be essential to our health. Suspended speakers in the rooms at the end of the tunnel project the fundamental and a number of harmonics of the Schumann Resonance, exciting the space, interacting, causing the air to vibrate. Added to this are frequencies that are thought to promote change, transformation and intuition.

5. 50Hz to 1050Hz to 50Hz. And Again.
A sine wave slowly ascending and descending interacts with the shape and dimensions of the room to invoke the sensation that the position of the sound source is moving around the room.

6. Sonic Fiction
A step towards something else, this multichannel composition uses elements and techniques drawn from the “silence” of these rooms. Super-imposed recordings of all of the empty rooms are projected together into one space, where the resonant frequencies are teased out, amplified and exaggerated. These are then layered and enforced by sine and square waves that move around the room, building intensity, exciting the air, vibrating the walls, transforming the room until it is unrecognisable before returning the room to its original state.

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