Maybe so, but it is also caused if the cutter is not exactly paralell to the
disc surface and thus causes greater downward force toward the center,
slowing the disc which then apperas to play faster in playback. This
problem occurs with alarming regularity on home recording discs.
----- Original Message -----
From: "Don Cox" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, August 22, 2003 12:16 PM
Subject: Re: [ARSCLIST] speed policies 
> On 22/08/03, Mike Richter wrote:
> > I do not mean to suggest that it is irrelevant how the recording is
> > pitched; only that one may try to "sweat the small stuff" beyond the
> > point at which it makes sense. On many of the recordings with which I
> > work, speed is not constant across the disc. That introduces problems
> > of relative pitch on which there is far greater sensitivity than
> > absolute.
> Is anything known of the form of these pitch changes across the disk?
> Presumably it comes from using a clockwork motor which runs down. Does
> the pitch remain constant for a while and then start to change, or is
> there a steady change throughout the disc?
> Don Cox
> [log in to unmask]