40 years ago today (22nd), RCA introduced their CED Videodisc system, in 1972, RCA planned to include (FM carrier based) discrete quad audio on their videodisc:
From the book:
RCA and the VideoDisc:
the business of research
Page 152: (status report in November 1972)
"Goal of four stereo channels: one achieved"
Strange wording, but since this initial report, I haven't read anything about how RCA planned to implement this (maybe with a CX type NR system on all 4 channels since the sound quality of the CED soundtrack wasn't HiFi with regard to noise).
Kirk Bayne
From the book:
RCA and the VideoDisc:
the business of research
Page 152: (status report in November 1972)
"Goal of four stereo channels: one achieved"
Strange wording, but since this initial report, I haven't read anything about how RCA planned to implement this (maybe with a CX type NR system on all 4 channels since the sound quality of the CED soundtrack wasn't HiFi with regard to noise).
Kirk Bayne
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