Early device

Sketch provided by audio historian David Giovannoni shows a phonautograph, a device created by Parisian inventor, Édouard-Léon Scott de Martinville, that captured a visual record of sound.

Associated Press / March 27, 2008

Sketch provided by audio historian David Giovannoni shows a phonautograph, a device created by Parisian inventor, Édouard-Léon Scott de Martinville, that captured a visual record of sound.

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