Reply
 
Thread Tools Display Modes
  #1   Report Post  
John LeBlanc
 
Posts: n/a
Default Using high-energy physics to preserve old records

This is really an interesting story:

"The aged wax cylinder in Carl Haber's hands was cracked and spotted with
greenish mold, too fragile now to be played with a record needle, as it was
intended.

With a vintage Edison Standard Phonograph cranking out tinny Hawaiian hula songs
in the background, he put the moldy cylinder under a microscope and pointed out
the grooves that were still visible underneath the mold and other damage.

"We might be able to fix that," said Haber, a researcher for the University of
California's Lawrence Berkeley National Laboratory. "There is still information
there."

Haber and Berkeley Lab colleague Vitaliy Fadeyev are working on a breakthrough
way of digitizing and archiving old recordings, such as wax cylinders and
traditional flat records, that are too far gone for a standard stylus. If
successful, the pair may be able to help archivists at The Library of Congress
and elsewhere rescue swaths of recorded musical and audio history that are today
in danger of being lost."

The rest is he
http://news.com.com/2100-1027_3-5208...?tag=nefd.lede

John


  #2   Report Post  
Paul Stamler
 
Posts: n/a
Default

Download the samples and listen to them. I compared the three versions of
"Goodnight Irene", and the one done by the fancy new process sounded worse
to my ears than the one played from the 78 with a needle and *much* worse
than the one from the tape. Weird noise background and lots of distortion in
the audio. And I could clean up the 78 way better than they did with a few
minutes in DC-ART and CoolEdit/Audition.

The process *might* be useful for cylinders and such not playable by a
standard cartridge. But if this is any example, they have a long way to go.

Peace,
Paul


  #3   Report Post  
 
Posts: n/a
Default

"John LeBlanc" wrote in message
...
This is really an interesting story:

"The aged wax cylinder in Carl Haber's hands was cracked and spotted with
greenish mold, too fragile now to be played with a record needle, as it

was
intended.

With a vintage Edison Standard Phonograph cranking out tinny Hawaiian

hula songs
in the background, he put the moldy cylinder under a microscope and

pointed out
the grooves that were still visible underneath the mold and other damage.

"We might be able to fix that," said Haber, a researcher for the

University of
California's Lawrence Berkeley National Laboratory. "There is still

information
there."

Haber and Berkeley Lab colleague Vitaliy Fadeyev are working on a

breakthrough
way of digitizing and archiving old recordings, such as wax cylinders and
traditional flat records, that are too far gone for a standard stylus. If
successful, the pair may be able to help archivists at The Library of

Congress
and elsewhere rescue swaths of recorded musical and audio history that

are today
in danger of being lost."


Yah, or they could just suspend the cylinders in a glass jar with a half
inch of chlorine bleach in the bottom, which would kill every single mold
cell in about a week without any damage to the actual material that the
cylinder is compised of. Or do they have some half-million-dollar grant
written that somehow makes it seem unlikely that anyone but them can
accomplish this 'daunting' task?

Send 'em to anyone on this NG and we can have them back to you in a week,
mold-free.
--


Neil Henderson
Progressive Rock
http://www.saqqararecords.com


  #4   Report Post  
Edi Zubovic
 
Posts: n/a
Default

On Sat, 08 May 2004 05:18:29 GMT, "Paul Stamler"
wrote:

Download the samples and listen to them. I compared the three versions of
"Goodnight Irene", and the one done by the fancy new process sounded worse
to my ears than the one played from the 78 with a needle and *much* worse
than the one from the tape. Weird noise background and lots of distortion in
the audio. And I could clean up the 78 way better than they did with a few
minutes in DC-ART and CoolEdit/Audition.

The process *might* be useful for cylinders and such not playable by a
standard cartridge. But if this is any example, they have a long way to go.

Peace,
Paul


I've came across their page too... and the "Good Noght Irene" sounds
worse compared to the other sources indeed. But things look promising
to me. And you ought to see the gear; I bet that's a kind of the
world's priciest phonograph reproductor -- I don't recall whether this
was a turntable or a table but it looked mighty. It's a high precision
positioning system coupled to a computer.

I'ts an interesting approach and while the first results don't seem to
be optimal, it's good to know that someone is trying different ways in
preserving the old recorded sound and I have a feeling that there are
many opportunities nowadays.

Edi Zubovic, Crikvenica, Croatia
  #5   Report Post  
John LeBlanc
 
Posts: n/a
Default


"Paul Stamler" wrote in message
...

The process *might* be useful for cylinders and such not playable by a
standard cartridge. But if this is any example, they have a long way to go.


The current process does seem a bit "Rube Goldbergish" to me, but it is an
interesting idea. I wonder how long it'll take them to properly "model" the coil
in a magnetic cartridge to give it that "analog sound".

John




  #6   Report Post  
dt king
 
Posts: n/a
Default

"John LeBlanc" wrote in message
...

"Paul Stamler" wrote in message
...

The process *might* be useful for cylinders and such not playable by a
standard cartridge. But if this is any example, they have a long way to

go.

The current process does seem a bit "Rube Goldbergish" to me, but it is an
interesting idea. I wonder how long it'll take them to properly "model"

the coil
in a magnetic cartridge to give it that "analog sound".


If we're really going Rub Goldberg, we should have a mechanism that moves
the needle on an actual cartridge plugged into a tube amp. Or, in the case
of wax cylinders, a diaphram at the base of a bakelite cone.

dtk


  #7   Report Post  
Ben Bradley
 
Posts: n/a
Default

On Fri, 7 May 2004 20:31:41 -0500, "John LeBlanc"
wrote:

...


http://news.com.com/2100-1027_3-5208...?tag=nefd.lede


I didn't see anything I recognized as "high-energy physics," but
maybe the reporter just dumbed down the story so much that it doesn't
contain any technical info whatsoever.

John


-----
http://mindspring.com/~benbradley
  #8   Report Post  
John LeBlanc
 
Posts: n/a
Default


"Ben Bradley" wrote in message
...

I didn't see anything I recognized as "high-energy physics," but
maybe the reporter just dumbed down the story so much that it doesn't
contain any technical info whatsoever.


Hello, Ben.

It does take a few clicks to get to the reference to them using a method
"similar to measuring tracks in a particle detector":
http://www.lbl.gov/Science-Articles/...-to-blues.html

Also, a bit more information is he
http://www-cdf.lbl.gov/%7Eav/

--John


Reply
Thread Tools
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Announcing 'hifi-am', to discuss High Fidelity AM tuners and hobbyist transmitters Jon Noring High End Audio 0 July 9th 04 04:22 AM
Classic records Vs. first pressings (Tube cutting amplifiers) maxdm High End Audio 93 June 22nd 04 11:52 PM
High Pass Filtering - How Audible? Arny Krueger Audio Opinions 36 April 22nd 04 08:10 PM
What is so high end about high end? Dennis Moore High End Audio 59 September 15th 03 03:00 AM


All times are GMT +1. The time now is 05:27 AM.

Powered by: vBulletin
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 AudioBanter.com.
The comments are property of their posters.
 

About Us

"It's about Audio and hi-fi"