This unique vocal instrument is based on a simple concept with a rather remarkable pedigre: chromatically sampled vocal sustains captured over 150 years ago. This original method of recording, called ‘Phonautography’ was invented in the early 1850s, by French inventor Édouard-Léon Scott de Martinville. The sounds were captured by projecting the voice and other sounds into a cylindrical horn attached to a stylus, which in transfered the vibration into lines over the surface of oil lamp soot-blackened sheets of paper. These raw archival recordings were preserved by the French Academy of Sciences and finally decoded by First Sounds with the help of laser scanning equipment at the Lawrence Berkeley National Laboratory.

http://www.soundiron.com/instruments/micropaks/phonautograms-2/

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