[ARSCLIST] Restoration of broken records...

[Dan Nelson <dnelsonone@xxxxxxxxx>]

Not long ago  the UCLA  film archives restored a unique  4 reel silent/sound  picture
from Columbia, The Barker.
some portions of the movie were typical silent  and  2 reels included sound. The
Sound was contained on 2  16" inch shellac 33 1/3 rpm discs. After the  film
was restored it was almost a lost cause to find  the  sound discs...  ultimately
a set was found with the disc for the last reel in 4-5 pieces.
Thanks to the skill of  Jim Cooprider, a member of  California Antique Phonograph
Society, the pieces were glued together, the grooves matched, a disc to digital 
was made  and  a final dub to a film soundtrack  allowed this early 1920s  partial
sound movie to  be  re-released.
don ward 
 
-----Original Message-----
>From: Graham Newton <gn@xxxxxxxxxxxxxxxxxxxxx>
>Sent: Aug 27, 2008 7:16 PM
>To: 78-l@xxxxxxxxxxxx, ARSCLIST@xxxxxxxxxxxxxxxx, Beautiful-Instrumentals@xxxxxxxxxxxxxxx
>Subject: [Beautiful-Instrumentals] Restoration of broken records...
>
>
>There has recently been some discussions of repairing a broken or cracked 
>record.  Everyone seems to have their own pet solution to the problem of making
>the record play again, some come close, but none provides a fully restored result.
>
>For some time, I have been intending to post an example of using CEDAR 
>processes to restore a broken record and here it is.
>
>This one is seriously cracked, but the process for a fully broken disc is 
>essentially the same... get it into a playable condition and use computerized
>de-click and de-thump processes.
>
>The source disc is a 10" American Record Corporation No. E 587 issued around
>1930, for theater use.
>
>Love, You Funny Thing! - Imperial Dance Orchestra
>
>See label photo here:  http://www.audio-restoration.com/CIMG4743t.jpg
>
>It was recorded at 33-1/3 rpm, transcription style inside start, with the same
>tune on each side.  The disc has a large 1/2 moon crack in it with one end
>still intact, but hold it up to light and you can see light through the
>separated end!
>
>See surface crack here:  http://www.audio-restoration.com/CIMG4746t.jpg
>
>See entire crack here:  http://www.audio-restoration.com/CIMG4747t.jpg
>
>
>Reasoning was, they were played by the projectionist to synchronize with
>showing of a silent film.  Being shellac discs, and with the heavy weight of
>the pickups and steel needles, the discs wore out very fast.  As one side
>became noisy, the projectionist would order a new disc and start using the
>remaining good side.
>
>One pass used CEDAR de-clickle to remove the leading impulse clicks.
>The remaining thumps were removed using CEDAR de-thump installed on SADiE 5
>workstation.
>
>The two audio files can be lined up to see there is no timeline discontinuity
>as there would otherwise be with conventional physical editing.
>
>Here is the de-clicked file prior to de-thump being done:- 
>http://www.audio-restoration.com/arc-e587-thumps.mp3
>
>Here is the finished de-thumped file:-
>http://www.audio-restoration.com/arc-e587-dethump.mp3
>
>
>
>... Graham Newton
>