A Berkeley Lab research team in California has successfully restored a 134 year-old audio recording. The historic audio was originally captured in 1878 by a phonograph designed by Thomas Edison, which consisted of a cylinder wrapped in tinfoil that used a stylus to record sound on the surface of the material. Due to the foil's frailty, recordings were only good for a few playbacks on Edison's phonograph. To restore this century-old mixtape, the research team created a 3D model of the grooves in the foil and ran it through a software that recreated the original audio track.
Engadget , Auto-tune this! Research team restores 134 year-old audio recording, Auto-tune this! Research team restores 134 year-old audio recording
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