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

[Christopher Steward]

I know that Norman uses, or used, a Diamond Cut program. That has the facility to vary the speed throughout a file, linearly or otherwise.
Chris

--- On Sat, 21/3/09, Dnjchi at aol.com <Dnjchi at aol.com> wrote:

From: Dnjchi at aol.com <Dnjchi at aol.com>
Subject: Re: [78-L] constant velocity records, was Value of 78's
To: 78-l at klickitat.78online.com
Date: Saturday, 21 March, 2009, 2:30 AM

In a message dated 3/20/2009 9:25:42 P.M. Eastern Standard Time,  
dlennick at sympatico.ca writes:

joe at salerno.com wrote:
> the World label was available at least  during 1923 and 1924 and are 
> almost totally unique
>> among  78s produced for commercial sale: they are not meant to play at
a  
consistent
>> speed!  In order to keep the velocity of the  record consistent, a
special 
mechanism was
>> attached to the  gramophone to speed up the record as the soundbox
moved 
over it. 
>  
> has anyone ever figured out a speed change formula for transferring a  
> constant velocity record?
> 
> Or is it dependent on the  record size or something?
> 
> joe salerno
> 

Norman  Field, who hasn't returned to this list, transferred at least one 
World  
some years ago and sent me a copy. Mind you, it was spoken word (a Fred  
Duprez 
routine). Variations in speaking pitch can be just as audible as  variations 
in 
music, but I don't know if he successfully transferred  music.

dl
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



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