Gray Audograph
id:
gray-audograph-174-2025892
title:
Gray Audograph
text:
The Gray Audograph was a dictation machine format introduced in 1945. It recorded sound by pressing grooves into soft vinyl discs. 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 surface-mounted wheel. This meant that its recording and playback speed decreased toward the edge of the disc, to keep a more constant linear velocity and to impro
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Gray_Audograph
date created:
2007-05-04T13:16:26Z
date modified:
2024-09-02T16:19:44Z
main entity:
{"identifier":"Q5598158","url":"https://www.wikidata.org/entity/Q5598158"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/b/bc/Gray_PhonAudograph_dictation_phone_-_Telephone_Museum_-_Waltham%2C_Massachusetts_-_DSC08226.jpg","width":4486,"height":3466}
fields total:
13
integrity:
15