UD-4
id:
ud-4-293-16878476
title:
UD-4
text:
UD-4 was a discrete four-channel quadraphonic sound system for phonograph records introduced by Nippon Columbia (Denon) in 1974. This system had some similarities with the more successful CD-4 process introduced by JVC and RCA in 1972. Only about 35 to 40 LP album titles were encoded in this format, and it was marketed only in the UK, Europe and Japan. Most of these releases were marketed by the Denon label. The UMX standard used for UD-4 contains two subsystems: BMX, a basic 4-2-4 matrix decode
brand slug:
wiki
category slug:
encyclopedia
description:
Discrete 4-channel quadraphonic gramophone record format developed by Nippon Columbia
original url:
https://en.wikipedia.org/wiki/UD-4
date created:
date modified:
2023-03-09T17:57:15Z
main entity:
{"identifier":"Q18355699","url":"https://www.wikidata.org/entity/Q18355699"}
image:
fields total:
13
integrity:
14