[78-L] Audacity and off-center transfers

[Dustin Wittmann]

Definitely don't make off-center transfers to begin with. I use three
rubber mats on my new Technics SP-10R and can raise my tonearm high enough
(plus VTA adjustment) to manually center any record. Timestep sells
modified Technics tables, too, with truncated spindles for a pretty
reasonable price for serious archivists. There are also the belt-driven Rek
O Kut tables sold by Esoteric Sound. I have my trusty Rondine 3 up on eBay
now, for what it's worth.

I've never had any problems with records moving even without spindle
support. There's always a record clamp.

Remember, too, that if you digitize a record at slow speed, you need to do
it flat and then add EQ after re-pitching. If the EQ is present before
that, it will be in the wrong wrong place!

CEDAR Cambridge has a re-speed plugin that can re-pitch records based on
any number of observable factors in the spectrum, but you don't want to
rely on that...few can afford it. I just blew a lot of future record budget
on a system and plan to use it on many of the records that suffer from
inconsistent lathe speeds.

Dustin Wittmann

On Thu, Mar 10, 2022, 6:21 PM Malcolm <malcolm at 78data.com.invalid> wrote:

>
> I use a piece of 1/4" Styrofoam sheet cut to 12" diameter. Punch or cut
> or ream out a hole in the center just big enough to fit over your
> turntable spindle. Put the adapter on the table. The spindle should be
> hidden in the hole. Place an off-center (78rpm) record on the adapter
> with the center holes lining up  The friction between the styro and the
> record will be enough to hold the record stationary on the styro no
> matter what speed you're going to play it at. Run the table initially at
> 33 or 45 and adjust the record by gently tapping along its edge until
> the groove no longer wanders and tracks straight. Then you can play the
> record at it's normal speed when digitizing.
> I use a Technics SP-15 table and this trick works every time.
> I've never lost a record due to it's being flung off the machine!
> I don't think Audacity or Audition have an algorithm that allows the
> digital repair of an off-center disc. At least they didn't a few years
> back.
> Malcolm R
>
> *******
>
> On 3/10/2022 1:58 PM, Rodger J Holtin wrote:
> > Just picked up a CD of Teddy Wilson Columbias (booklet missing, of
> course)
> > and the first track is off-center.  Rust shows that title as unissued, so
> > the source might be a one-only.  C'est la vie.
> >
> >
> >
> > I've learned a lot of tricks with Audacity and I'm going to guess
> there's a
> > fix for regular pitch changes such as those wrought by off-center 78s,
> but I
> > haven't figured it out yet.
> >
> >
> >
> > Anybody else mastered that technique?
> >
> >
> >
> > Rodger Holtin
> >
> > 78-L Member Since MCMXCVIII
> >
> >
> >
> > For Best Results Use Victor Needles
> >
> >
> >
> >
> >
>
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