LISTSERV mailing list manager LISTSERV 16.0

Help for ARSCLIST Archives


ARSCLIST Archives

ARSCLIST Archives


ARSCLIST@LISTSERV.LOC.GOV


View:

Message:

[

First

|

Previous

|

Next

|

Last

]

By Topic:

[

First

|

Previous

|

Next

|

Last

]

By Author:

[

First

|

Previous

|

Next

|

Last

]

Font:

Proportional Font

LISTSERV Archives

LISTSERV Archives

ARSCLIST Home

ARSCLIST Home

ARSCLIST  March 2003

ARSCLIST March 2003

Subject:

Re: Archiving to hard drive

From:

Naropa Audio Archives <[log in to unmask]>

Reply-To:

Association for Recorded Sound Discussion List <[log in to unmask]>

Date:

Tue, 4 Mar 2003 14:47:12 -0700

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (112 lines)

 Responding to Claire Michelle Viola's request for information:

<While we have been transferring here and there to CD-R, mainly in order
to provide service copies, the audio engineers here at Eastman are now
seriously considering the option of transferring directly to hard drive,
with several servers to provide for back-up.>


The Naropa Audio Archive Project is in a one-year pilot (NEA
funded)project to test the migration of analog audio cassette from 30
years of lectures, performances and panel discussions onto various
digital formats, including hard drive, for preservation and for access.
We've been moving over audio since October.

Both considerations - preservation, and access - have specific
requirements that need to be addressed before any material is migrated,
or you run the risk of having to redigitize it.

For preservation - neither cd-rs or hard drive are 'approved'
preservation mediums for audio at this time. That means your DAT is your
oficial preservation copy.  Any format you migrate to is provisional and
needs to be as pristine a copy as you can afford (uncompressed file,
high sampling rate, professional equipment).  You're likely to have to
migrate off the cd's or server at some point in the near future, so
budgeting for multiple (continual) migration is a consideration. As is
the format and encoding you intend to employ in creating your digital
copy of the audio.

For access, how are you going to catalog the transferred files, how do
you want access to be handled from the server, what kind of permissions,
copyright, or releases are necessary, how are you going to log material
as it's transferred for which cataloging format...gotta work all that
out first.

We have a small audio lab equipped with a professional grade (nakamichi
dragon) cassette playback, (for your project this would be replaced by
DAT playback machine). After converting analog to digital the signal is
transferred in realtime into a digital audio workstation (computer with
audio programming - ours is a SADiE). We're sampling at the highest rate
we can afford to store on - 44/24. We want a high-quality preservation
master, because the cassettes are going to be unplayable soon - even if
we are calling it our 'preservation' copy. Is it worth it to go even
higher? Everyone we talk to disagrees.

Once the file is in the computer, we create:
-one CD-DA (audio)for reference - this is a flat, unaltered transfer
-two CD-Rs in BWAV format - also the unaltered file (BWAV is the most
open format we could find - we want the files to be able to be read in
20 or 200 years). We burn copies of the audio files on two different
manufacturers' CDs because there seems to be almost 10% bad cd stock on
a random basis. We're using Mitsui gold and Taiyo Uden, although I don't
think TU is making gold alloy anymore. Anyone know another supplier?
This is a preservation issue - gold alloy being
most stable.  We may move over to DVD's as standards emerge.
-one back up BWAV file on AIT data storage tape in case the CDs reach
some as-yet-unknown end of lifespan

As we transfer into the computer, we log the material for all fields
required in Dublin Core cataloging. We'll test capturing info sufficient
for Marc/Ead records next month - then we'll make test-catalog records
for both to see what level of cataloging we can accomodate on a
moving-forward basis.  We want the public and researchers to know the
material's available, so cataloging for digital web-based access is very
important to us. We're also logging the content so as to better describe
the files. We're not creating transcripts at this time.

All copies made to this point go to a temperature and humidity
controlled storage facility as the preservation copies. We intend to
check the cds and AIT tape annually for loss of data and migrate as
needed.

-For access, we take the original file that's still in the SADiE, and
put it through noise and hiss reduction programs. We edit out the
intermissions, smoking breaks, and other dead air. We create an access
protection/dubmaster CD-DA (audio copy) and a listening copy.

This is at a 3-1 ratio - three hours of real time to process one hour of
original audio. It takes up a lot of CDs. At 44/24 every hour of
original uses up 3 cds for each BWAV copy. Our librarian does not want
to store and handle the 15000 or so access cds we expect to make. So
we're developing plan to test server for digital access to collection.

We will still create CD-rs and AIT tape for preservation. There's too
much fragility to count on keeping preservation copy on hard drive, at
least for us. We're in a flood plain. Too much memory for us to afford
uncompressed hard drive copies of the entire collection. We'll rig up
output from SADiE into server to move compressed access files over.
Server will have RAID array as well as a tape back up system. We're
working on the front-end internet design now. We figure 2.5 tb to store
3000 hours of compressed audio.

The compressed MPEG files will go out to folks over the internet after
the internet user registers online and signs use agreement. We are
planning to offer streaming audio as opposed to downloadable audio, but
we'll have to see what's most useful to people.  What we are worried
about is how many people might use it at once - I have no idea how to
budget for bandwidth until we're up; still looking at what to do if too
many simultaneous users attempt to listen. We should be so successful.

Hope this is helpful.  If you'd like more specifics, budget info,etc,
don't hesitate to give me a call. I were you, I'd call Seubert and
Seadle to advise on the project design. They have been very helpful to
our project.

Sue Salinger
Administrative Director
Naropa Audio Archive
2130 Arapahoe
Boulder, CO 80302
(303)546-3573
[log in to unmask]

Top of Message | Previous Page | Permalink

Advanced Options


Options

Log In

Log In

Get Password

Get Password


Search Archives

Search Archives


Subscribe or Unsubscribe

Subscribe or Unsubscribe


Archives

October 2021
September 2021
August 2021
July 2021
June 2021
May 2021
April 2021
March 2021
February 2021
January 2021
December 2020
November 2020
October 2020
September 2020
August 2020
July 2020
June 2020
May 2020
April 2020
March 2020
February 2020
January 2020
December 2019
November 2019
October 2019
September 2019
August 2019
July 2019
June 2019
May 2019
April 2019
March 2019
February 2019
January 2019
December 2018
November 2018
October 2018
September 2018
August 2018
July 2018
June 2018
May 2018
April 2018
March 2018
February 2018
January 2018
December 2017
November 2017
October 2017
September 2017
August 2017
July 2017
June 2017
May 2017
April 2017
March 2017
February 2017
January 2017
December 2016
November 2016
October 2016
September 2016
August 2016
July 2016
June 2016
May 2016
April 2016
March 2016
February 2016
January 2016
December 2015
November 2015
October 2015
September 2015
August 2015
July 2015
June 2015
May 2015
April 2015
March 2015
February 2015
January 2015
December 2014
November 2014
October 2014
September 2014
August 2014
July 2014
June 2014
May 2014
April 2014
March 2014
February 2014
January 2014
December 2013
November 2013
October 2013
September 2013
August 2013
July 2013
June 2013
May 2013
April 2013
March 2013
February 2013
January 2013
December 2012
November 2012
October 2012
September 2012
August 2012
July 2012
June 2012
May 2012
April 2012
March 2012
February 2012
January 2012
December 2011
November 2011
October 2011
September 2011
August 2011
July 2011
June 2011
May 2011
April 2011
March 2011
February 2011
January 2011
December 2010
November 2010
October 2010
September 2010
August 2010
July 2010
June 2010
May 2010
April 2010
March 2010
February 2010
January 2010
December 2009
November 2009
October 2009
September 2009
August 2009
July 2009
June 2009
May 2009
April 2009
March 2009
February 2009
January 2009
December 2008
November 2008
October 2008
September 2008
August 2008
July 2008
June 2008
May 2008
April 2008
March 2008
February 2008
January 2008
December 2007
November 2007
October 2007
September 2007
August 2007
July 2007
June 2007
May 2007
April 2007
March 2007
February 2007
January 2007
December 2006
November 2006
October 2006
September 2006
August 2006
July 2006
June 2006
May 2006
April 2006
March 2006
February 2006
January 2006
December 2005
November 2005
October 2005
September 2005
August 2005
July 2005
June 2005
May 2005
April 2005
March 2005
February 2005
January 2005
December 2004
November 2004
October 2004
September 2004
August 2004
July 2004
June 2004
May 2004
April 2004
March 2004
February 2004
January 2004
December 2003
November 2003
October 2003
September 2003
August 2003
July 2003
June 2003
May 2003
April 2003
March 2003
February 2003
January 2003

ATOM RSS1 RSS2



LISTSERV.LOC.GOV

CataList Email List Search Powered by the LISTSERV Email List Manager