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Dictaphone was an American company founded by Alexander Graham Bell that produced dictation machines. It is now a division of Nuance Communications , based in Burlington, Massachusetts . Although the name "Dictaphone" is a trademark , it has become genericized as a means to refer to any dictation machine .
A dictation machine is a sound recording device most commonly used to record speech for playback or to be typed into print. It includes digital voice recorders and ...
Having been intended for recording dictation and other speech for later transcription, it is a write-once-read-many medium consisting of a 5-mil (0.13 mm) thick transparent vinyl (according to a 1960s Dictaphone user manual: cellulose acetate butyrate) plastic belt 3.5 inches (89 mm) wide and 12 inches (300 mm) around. [2]
John F. Kennedy. A Dictabelt recording from a motorcycle police officer's radio microphone stuck in the open position became a key piece of evidence cited by the House Select Committee on Assassinations (HSCA) in their conclusion that there was a conspiracy behind the assassination of John F. Kennedy on November 22, 1963.
Thomas Edison invents the first dictation machine, a slightly improved version of his phonograph. [2] 1936: Invention: A team of engineers at Bell Labs, led by Homer Dudley, begins work on the Voder, the first electronic speech synthesizer. [3] 1939: March 21: Invention: Dudley is granted a patent for the Voder, US patent 2151091 A. [3] 1939 ...
Charles Sumner Tainter (April 25, 1854 – April 20, 1940) was an American scientific instrument maker, engineer and inventor, best known for his collaborations with Alexander Graham Bell, Chichester Bell, Alexander's father-in-law Gardiner Hubbard, and for his significant improvements to Thomas Edison's phonograph, resulting in the Graphophone, one version of which was the first Dictaphone.
The Gray Audograph was a dictation machine format introduced in 1945. It recorded sound by pressing grooves into soft vinyl discs. [1] [2] The Audograph recorded on thin vinyl discs of 15cm diameter, recording from the inside to the outside, the opposite of conventional gramophone records. Unlike conventional records, the disc was driven by a ...
SoundScriber is a dictation machine introduced in 1945 by The SoundScriber Corp. (New Haven, Connecticut, United States). [1] It records sound with a groove embossed into soft vinyl discs with a stylus. [1] [2] [3] Similar competing recording technologies are the Gray Audograph and Dictaphone DictaBelt.
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