Gray Audograph - Citizendia

The Gray Audograph was a dictation format introduced in 1945. It recorded sound by pressing grooves into soft vinyl discs, like the competing, but incompatible, SoundScriber. A vinyl compound is any Organic compound that contains a vinyl group (also called ethenyl) &minus C[[Hydrogen H]] =CH sub>2 The SoundScriber was a Dictation format introduced in 1945 It recorded sound by pressing grooves into soft Vinyl discs and along with the competing Gray Audograph It was manufactured by the Gray Manufacturing Company of Hartford, Connecticut, in the United States. The United States of America —commonly referred to as the

The Audograph recorded on thin vinyl discs, recording from the inside to the outside, the opposite of conventional gramophone records. A gramophone Unlike conventional records, the disc was driven by a surface-mounted wheel. This meant that its recording and playback speed decreased toward the edge of the disc (like the Compact Disc and other digital formats), to keep a more constant linear velocity and to improve playing time. A Compact Disc (also known as a CD) is an Optical disc used to store digital data, originally developed for storing digital audio ^[1]

Along with a DictaBelt sound recorder, an Audograph captured sounds recorded at the time of the John F. Kennedy assassination that were reviewed by the United States House Select Committee on Assassinations. The Dictabelt or Memobelt was a form of recording medium introduced by the American Dictaphone company in 1947 The assassination of John F Kennedy, the thirty-fifth President of the United States, took place on Friday November 22 1963 in Dallas Texas The United States House of Representatives Select Committee on Assassinations was established in 1976 to investigate the John F

In 1950, Gray began to make a variant of the Audograph for AT&T, known as the Peatrophone; however, due to what at the time were the high costs of renting and installing the machine, it served only a niche market. Before proposing a merge request please see Talk and see if the merger you propose has recently been made and ^[2]

References

External links

© 2009 citizendia.org; parts available under the terms of GNU Free Documentation License, from http://en.wikipedia.org
network: | |