Daniel,
You can check the Colorado Digitization Program's website for Best Audio
Digital Practices.
http://www.cdpheritage.org/
In the middle column you'll find Best Practices and select Digital
Audio.
Wendy Hall
Carnegie Branch Library for Local History
1125 Pine Street
Boulder, CO 80302
>>> "Sokolow, Daniel" <[log in to unmask]> 05/16/06 11:08AM >>>
All,
I'm finally looking at some LPs in the collection that were made in the
50's - they're labeled as NBC Radio reference recordings, which
according to my dad they sometimes made kind of on the fly. He also
suggested they could be made on either glass or aluminum. I can't tell
from looking at them, though they appear to be some kind of vinyl laid
down on a metal substrate.
In any event, I'm looking to transfer these to digital files. Several
of these are 33 RPM, the rest 78. I have a 33 turntable of my own, and
my dad still has a 78 capable player. Recognizing that ideally I should
go to a professional conservator, does anyone have any specific advice
for handling these properly for playback?
I basically want to capture the information off them as best I can -
some level of high quality, lossless capture that will insure I at least
have the data. I can clean up the sound later electronically. I don't
know how much can be done to preserve the LPs themselves - there's very
little budget available right now.
Some specific questions:
* One or two appear to have smudgy areas, like smeared fingerprints.
Will those hamper playback?
* Can I use a standard LP cleaning brush? With or without some kind of
fluid?
* Do I need to worry about the needle used for playback? Are there
specific needles needed for aluminum discs?
* Do I need to worry about needle pressure?
Anything else?
TIA,
DS
______________________________________
Daniel Sokolow, Archives Coordinator
David Taylor Archives
North Shore-Long Island Jewish Health System
155 Community Drive
Great Neck, NY 11021
mailto:[log in to unmask]
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