October 21, 2016

Jacques Dudon - Lumiéres Audibles, 1995

"In his 'photosonic' process, Dudon shines light through a series of semi-transparent, rotating discs that slow and modify the light waves’ frequencies; the resulting waveforms are picked up by photoelectric (solar-power) cells connected to standard analog amplifiers."
- Kala Pierson, review in 'The New Music Connoisseur'

"I discovered these very particular waveforms from the beginning of my disk experimentations. Their sonorities, both complex and transparent, are among the oddest, reminding those of inharmonic tones or hisses. Their audition is often accompanied by very powerful psychic effects, the ear recognizing precise textures, paradoxically without being able to give them any determined fundamental pitches. This comes from the fact that graphically, and by analogy with the fractal images, these waves are generated by laws of geometrical development, putting in action the same organizing principles whatever the scale they are being observed at. The synthesis, on a disk, of a white noise, sets a very interesting mathematical problem, which can't be resolved by shapes thrown in a hazardous way, neither by other aleatory parameters, which would only produce a buzz, while a white noise is the undifferentiated mixture of all frequencies. Fractal waveforms are up to this date what I found the most successful for a white noise imitation. In this CD are explored three of these fractal waveforms, with their related intonations: the "Clar" fractal waveform, and its first developments, in "Hexagrammes" (track 8); the "Phi" fractal waveform, starting point of "Fleurs de lumière" (tracks 1-2-3); and the "Mohajira" fractal waveform, at the basis of "Sumer" (tracks 4-5-6-7)."
- Fractal waveforms (excerpt from the "Lumières audibles" booklet)

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