[78-L] constant velocity records, was Value of 78's

[Bertrand CHAUMELLE]

There's a 'controller' on the box, to adjust before playing the record, 
according to the indication thereon: "Speed B slow" for instance, which 
depends on the length of the tune, I guess.

This is explained somewhere on Norman Fields' site but I can't access 
the page.

BC
Le 21 mars 09, à 17:33, joe at salerno.com a écrit :

>
> How did one indicate the "speed" of a CV record? Was there a median
> speed? Start-stop? OR you just had to have the right box to play it on,
> and if it got out of alignment, a part wore, or it got stickiness in 
> it,
> you were just sunk?
>
> How did they calibrate the players at the factory? Anyone ever seen a
> document on this?
>
> joe salerno
>
> David Lennick wrote:
>> Dnjchi at aol.com wrote:
>>
>>> Playback might be possible if software could be developed by which 
>>> the  speed
>>> of the download might be increased or decreased (which is it?) 
>>> linearly  from
>>> start to finish.  That is, digitalize at (say) 78, and then use some 
>>>  program
>>> to adjust for playback.  Has this yet been done?
>>> Don Chichester
>>
>> Probably fairly easy to do in the digital domain once you know the 
>> key in which
>> the music should be (roughly), and the fact that World Records showed 
>> a playing
>> time on the label will help. But there's no guarantee that the speed 
>> was
>> absolutely constant during the recording process, any more than 
>> conventional
>> 78s are absolutely correct throughout..your ear will have to play a 
>> part in the
>> processing process.
>>
>> There were also CV discs made for a juke box around the early 40s. 
>> These have
>> been mentioned here once or twice and I think Kurt Nauck had some 
>> listed a
>> couple of years ago.
>>
>> dl
>>
>> _______________________________________________
>> 78-L mailing list
>> 78-L at klickitat.78online.com
>> http://klickitat.78online.com/mailman/listinfo/78-l
>>
>
> _______________________________________________
> 78-L mailing list
> 78-L at klickitat.78online.com
> http://klickitat.78online.com/mailman/listinfo/78-l
>