Category:VODER

See also Wikipedia article: Vocoders.

Bell Telephone Laboratory's Voder (from Voice Operating DEmonstratoR) was the first attempt to electronically synthesize human speech by breaking it down into its acoustic components. It was invented by Homer Dudley in 1937–1938 and developed on his earlier work on the channel vocoder. The quality of the speech was limited; however, it demonstrated the synthesis of the human voice, which became one component of the vocoder used in voice communications for security and to save bandwidth.^[1]

See also categories: Vocoders, VODER, Phase vocoders and Linear predictive coding.

Bibliography

• Dudley, Homer (October 1940). "The Carrier Nature of Speech". Bell System Technical Journal XIX (4): 495–515.
• Williams, Thomas W.. "At the New York World's Fair". Bell Telephone Quarterly XIX (1): 59–71. New York: American Telephone & Telegraph Co.. "More than Thirteen Million Visitors Enjoyed the Bell System's Hospitality, and Learned about It and Its Services, at the New York Fair and the San Francisco Exposition"

Patents

• US patent application 2121142, Homer W. Dudley, "System for the artificial production of vocal or other sounds", published 1938-06-21 , assigned to Bell Telephone Laboratories 

Multimedia

• The Voder - Homer Dudley (Bell Labs) 1939 (audio + slide show). YouTube.
  Note: between 3'00" ~ 3'20" on this video, VODER sang the "Auld Lang Syne", circa 1939.

Voice Operation Demonstrator 

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