Oldest Voice Recording, A French Folksong
The recording played Thursday predates Thomas Edison's invention of the phonograph (previously thought to have recorded the first sound) by 17 years. It captured about 10 seconds of the French folksong "Au Clair De La Lune" on April 9, 1860.
Édouard-Léon Scott de Martinville recorded the voice by using a "phonautograph" to scratch sound waves onto a sheet of paper covered in black smoke from an oil lamp. He never intended to play the sounds. Instead, he archived the recording and patented a method for understanding sound. Researchers recently unearthed the recording at the Academy of Sciences (French) in Paris.
Audio historians, recording engineers, and scientists working in conjunction with the informal collaborative group First Sounds created high-resolution, high-grade scans of Scott's phonautogram, converted the images into digital form, and played the sounds on a computer with a virtual stylus. Then they evened out speed fluctuations and tweaked the tracks to pull the voice forward.
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