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A direct recording of Alexander Graham Bell's voice - Filtered Version

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Published on Apr 25, 2013

See http://www.youtube.com/watch?v=qTpWD2...
for a YouTube video displaying the original notes

From the Smithsonian Institution National Museum of American History (SI NMAH) Volta Laboratory collection.
Optical scanning is a process to restore historic sound recordings, non-invasively. The technology used here was developed mainly by a collaboration of Lawrence Berkeley National Laboratory and the Library of Congress.

See http://bio16p.lbl.gov/volta-release-2... for more details.

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