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Why 78rpm, 45rpm, and 33.3rpm?


Does anyone know why these particular speeds were chosen for phono records? Early on there were 80rpm (one-sided) records, and 16 rpm was used for radio broadcast transcription and speech. I think that the CD sample rate 44.1 KHz has something to do with compatibility with movie frame rate. (The CD rpm varies as the disc plays so as to maintain a constant data rate).
eldartford

Showing 1 response by ozfly

ozfly
887 posts
 
Here's a link Lugnut was kind enough to provide in another thread. http://www.ifrance.com/c-i-f/hificol.html

Not sure about the rest of it but look forward to reading some responses.
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