Re: [ARSCLIST] LP groove repair

[James L Wolf <jwol@xxxxxxx>]

Eric,

   Since  you mentioned having a access to a CD copy (with inferior
sound) of the record you're trying to track, and you're also going to
have access to an ELP, can I suggest a small comparison experiment?
   Grab your needed seconds from both the ELP output and the CD and
compare the results when they're spliced in. Is there a noticable
difference. Do both sound , OK, not-so-good, or one better than the
other? If you have ways of testing the sound, how do they compare on the
tests?
   I've gone on record several times with my opinion of the ELP
(mostly, it's very useful for some stuff, but overall it sounds lousy).
But I wonder how noticable that lousy sound is for a small chunk of
sound inserted into a needle transfer done on a top-notch table.
    Generally, has anyone done spectral analysis or any other tests to
compare the outputs of needle, laser turntable, and the new Berkeley
method of disc transfer? As with early CDs, many of us can hear that
something seems to be missing from the non-physical methods of playback,
but can only decribe the problem with limited accuracy. Identifying the
precise shortcomings of the laser methods are the first steps toward
improving them and making them more generally useful to archives.

James



>>> Eric Jacobs <ericj@xxxxxxxxxxxxxxxxxxx> 11/30/2004 6:18:00 PM >>>
7.  The ELP laser turntable crossed my mind.  I should have access to
    one in a few weeks.

Thanks again for all of your excellent suggstions!  And if anyone
knows of the perfect vinyl filler, do let me know.

Eric Jacobs
The Audio Archive



-----Original Message-----
From: Association for Recorded Sound Discussion List
[mailto:ARSCLIST@xxxxxxx]On Behalf Of Rod Stephens
Sent: Tuesday, November 30, 2004 11:01 AM
To: ARSCLIST@xxxxxxxxxxxx
Subject: Re: [ARSCLIST] LP groove repair


In dealing with scratches and digs, I've used a brush with fine hairs
lightly applied to the side of the tone arm cartridge to guide the
stylus over a bad patch.  Or, I've found that I can incrementally tip
the turntable (to find the right amount of adjustment) on a angle
(most
are so well balanced that you can do this) by putting CD cases or
other
similar thin objects to raise either the two left or two right feet
high
enough to affect the tracking either toward the center of the disk or
toward the outer edge.  This seems to help the tonearm track across
gouges and digs.  I then use my DAW to edit the best of the passes
into
my final .wav file.  It works for me.

Rod Stephens
Family Theater Productions

Jeffrey Kane wrote:

>That's just about one of the only things it does well; dealing with
cracks,
>gouges, etc that a normal stylus can't cope with.
>
>
>
>>-----Original Message-----
>>From: Association for Recorded Sound Discussion List
>>[mailto:ARSCLIST@xxxxxxx] On Behalf Of Jos Van Dyck
>>Sent: Tuesday, November 30, 2004 6:00 AM
>>To: ARSCLIST@xxxxxxxxxxxx
>>Subject: Re: [ARSCLIST] LP groove repair
>>
>>Should work with a Laser turntable
>>http://www.elpj.com/
>>
>>If it is music, the 1.8 sec might be repeated somewhere else in the
piece.
>>Copy & paste with your DAW will cure.
>>
>>Jos
>>
>>
>>
>>>---------- Initial header -----------
>>>
>>>From      : "Association for Recorded Sound Discussion List"
>>>
>>>
>>ARSCLIST@xxxxxxx
>>
>>
>>>To          : ARSCLIST@xxxxxxxxxxxx
>>>CC          :
>>>Date      : Mon, 29 Nov 2004 19:04:43 -0800
>>>Subject : [ARSCLIST] LP groove repair
>>>
>>>
>>>
>>>>I have a 1963 LP which has a deep gouge - it looks like the needle
had
>>>>
>>>>
>>been
>>
>>
>>>>dropped very hard, leaving a pit in the record that is 2.5 grooves
>>>>
>>>>
>>wide.
>>
>>
>>>>Depending on how I set the anti-skate, I get one of two effects:
(a)
>>>>
>>>>
>>the
>>
>>
>>>>stylus skips and will not continue past the gouge or (b) the
stylus
>>>>
>>>>
>>jumps a
>>
>>
>>>>groove, skipping 1.8 seconds of music.  I've looked at the groove
>>>>
>>>>
>>under a
>>
>>
>>>>150x microscope, and it appears that the gouge is 0.010" deep.
For
>>>>
>>>>
>>the
>>
>>
>>>>really curious, I might try to photograph the damage.
>>>>
>>>>Does anyone have any experience on how to span this gouge?  Any
>>>>
>>>>
>>conservation
>>
>>
>>>>techniques for filling such damage just so to make the rest of the
>>>>
>>>>
>>grooves
>>
>>
>>>>playable?  Or am I just outta luck on this one.  I have a steady
hand
>>>>
>>>>
>>and
>>
>>
>>>>good optics/magnification.
>>>>
>>>>Eric Jacobs
>>>>The Audio Archive
>>>>San Jose, California
>>>>+1 (408) 221-2128
>>>>mailto:EricJ@xxxxxxxxxxxxxxxxxxx
>>>>
>>>>
>>>>
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