brain decomposition sound installation

Brain Decomposition w/ Titus von der Malsburg

Sound-Installation (2013)

(03.04 min) Sound-Sketch, Stereo .mp3/.ogg

Audifications of electric brain potentials suffer from the fact that each scalp electrode records a mixture of signals from all neural generators plus muscle artifacts resulting in a opaque and noisy rendition. We apply a recently developed computational technique to separate source signals from the recorded mixtures. These sources are then edited individually and spatialized in a matrix of speakers. The result is a clearer and more transparent audification of electric brain activity.

matrix

Custom made 110cm x 110cm sound module on which 15 speakers are arranged in the layout of the electrodes on the scalp. Each source signal will be assigned to the position where it was most active.

brain decomposition sound installation

1. Stereo mixture of two high-frequency components fading to two others, layered with two low-frequency components.

2. Stereo mixture of two high-frequency components with morphing spectral filters.

3. Stereo mixture of two high-frequency components with morphing spectral filters, layered with two low-frequency components.

4. Stereo mixture of five high-frequency components, layered with one low-frequency component.

5. Stereo mixture of two high-frequency components, layered with two low-frequency components.

6. Stereo mixture of four high-frequency components with morphing spectral filters.

7. Stereo mixture of four high-frequency components with morphing spectral filters.