About this document
Phonautograph: First Sound Recording Device by kevin is a document available to read on EtoBox.
The phonautograph, invented by Édouard-Léon Scott de Martinville and patented in 1857, is the earliest known device for recording sound, capturing sound waves as tracings on smoke-blackened surfaces. Although it was not designed for playback, phonautograms recorded before 1861 were successfully converted to audio in 2008, revealing the device
- Author
- kevin
- Language
- EN