28 março 2008

Afinal, o pai da gravação do som humano é outro

Researchers Play Tune Recorded Before Edison: For more than a century, since he captured the spoken words “Mary had a little lamb” on a sheet of tinfoil, Thomas Edison has been considered the father of recorded sound. But researchers say they have unearthed a recording of the human voice, made by a little-known Frenchman, that predates Edison’s invention of the phonograph by nearly two decades.
The 10-second recording of a singer crooning the folk song “Au Clair de la Lune” was discovered earlier this month in an archive in Paris by a group of American audio historians. It was made, the researchers say, on April 9, 1860, on a phonautograph, a machine designed to record sounds visually, not to play them back. But the phonautograph recording, or phonautogram, was made playable — converted from squiggles on paper to sound — by scientists at the Lawrence Berkeley National Laboratory in Berkeley, Calif.

Au Clair de la Lune--French folk song (1860 Phonautogram)
Scott recorded someone singing an excerpt from the French folksong "Au Clair de la Lune" on April 9, 1860, and deposited the results with the Académie des Sciences in 1861. The existence of a tuning-fork calibration trace allows us to compensate for the irregular recording speed of the hand-cranked cylinder. The sheet contains the beginning line of the second verse-"Au clair de la lune, Pierrot répondit"-and is the earliest audibly recognizable record of the human voice yet recovered.
* Au Clair de la Lune--French folk song (mp3)