I'm not sure it's been made clear just what is the issue here.
"Varispeed" was a feature on later tape machines allowing operators
to manually vary tape speed seamlessly over a range of say +- 10%
usually via a front panel potentiometer. I'm still not clear what the
enquirer means by varispeed in relation to the recording.
Is the apparent speed constant but non standard, or nominally
standard but varying, or a combination? Do the changes seem to have
been intentional or not? Is it a record or playback issue? As
initially mentioned, more information from the enquirer would help.
----- Original Message -----
From: "Association for Recorded Sound Discussion List"
<[log in to unmask]>
To:<[log in to unmask]>
Sent:Fri, 6 Mar 2020 10:07:21 -0800
Subject:Re: [ARSCLIST] Digitizing Varispeed Tapes
I possibly irrelvant question: Does the bias frequency stay the same
when varispeeding on record? Or does it vary with the varispeed?
> On Mar 6, 2020, at 9:57 AM, Jamie Howarth
<[log in to unmask]> wrote:
> Richard’s points are as always right on.
> If it’s ever of help Plangent has a high quality digital non-real
time algorithm for resampling that is programmable to any curve
necessary to achieve the results you are asking about. It’s a
service of course but I offer it where the desire is not to make
another tape generation copy.
> If we can help let me know.
> Jamie Howarth
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