[78-L] Lacquer discs recorded at 80 rpm

[David Lennick]

On 1/5/2011 2:46 PM, Michael Biel wrote:
> On 1/5/2011 10:05 AM, David Lennick wrote:
>> But playbacks were only heard on set and picked up by microphones as reference
>> audio, not used as part of the final mix. The slate and the click countdown on
>> the disc provided sync points but the final audio was mixed in from film audio, no?
>>
>> Hmm.  dl
>
> But if that playback disc was not being played back in sync at the
> proper speed the film could not be synced to the real sound recording on
> optical film.
>
> Mike Biel  mbiel at mbiel.com

I thought that was essentially what I was implying, while noting that the 
playback disc in no way was the actual finished audio to be in the finished 
film. And I didn't know till Doug's follow-up that 80RPM was specifically tied 
to camera speed. As for different speeds for playbacks and discs to take home, 
this is what I was told years ago by a colleague who spent several months 
working with MGM archivists, one former producer and one former music director.

dl

>
>
>> On 1/5/2011 9:57 AM, Doug Pomeroy wrote:
>>> Friend Nick Bergh has provided this answer:
>>>
>>> Hi Doug,
>>>
>>> 80 rpm is the speed you get with a 1200 rpm sync motor system.  It was
>>> not possible for the studios to record in sync at 78.26 rpm.
>>>
>>> Nick
>>>
>>>
>>>> From: Doug Pomeroy<audiofixer at verizon.net>
>>>>
>>>>
>>>> Does anyone know why lacquer discs were recorded at some transcription
>>>> studios, and also some movie studios, at 80 rpm?
>>>>
>>>> Doug Pomeroy   audiofixer at verizon.net
>
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