Re: [ARSCLIST] LP groove repair

[Eric Jacobs <ericj@xxxxxxxxxxxxxxxxxxx>]

Thank you everyone for all of your excellent advice.

To answer some questions:

1.  The LP was re-released to CD, but I prefer the sound quality of the
    original LP (aside from the massive gouge in one track).  So I'm
    digitizing it to 24/176.4 and will burn to DVD-A.  In desparation,
    I could copy a few seconds off the CD and digitally splice it into
    the damaged segment - probably the easiest solution.

    There is a part of me that is enjoying the challenge - what if there
    wasn't a second copy to rely on?

2.  The gouge is really bad and deep.  I've not seen anything quite so
    bad before.  The usual tricks of adjusting VTF and anti-skate were
    unsuccessful.

3.  I tried the "comb" with finger nail, and also combing with a fine
    exacto knife.  Same result - it either skips back (repeats) or skips
    over a groove.  Frustrating...

4.  I like the "tilt the turntable" idea, except that the entire
    turntable weighs about 230 pounds.  I might be able to reballast
    the vibration isolation support table to throw it off level just
    so...

5.  I'm going to give the "fine haired brush" idea a try as well.

6.  I can't think of an obvious filler.  The stylus is very small (a
    Lyra Helikon SL) and I'd hate to "gunk up" the stylus and then
    clean it.  If there was a filler that was hard enough not to leave
    large deposits on the stylus, that would be ideal.

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.
>
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>
>>-----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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