Re: arsclist cylinder frequency range

["Richard L. Hess" <arclists@xxxxxxxxxxxxxxx>]

I apologize for not following this thread in detail, but removing noise is 
known to be a major source of improvement to compressed files. This is one 
of the first thing one does in video when making DVDs for example.

I would think that intelligent noise removal--although that may not be 
compatible with simple workflow if the volume is large--would be better 
than simple filtering.

I've done some 78s that have made people quite happy, tho I don't do disks 
very often--and never do cylinders <smile>.

Algorithmix click reduction followed by their or Diamond Cut's noise 
reduction and then low-pass filtering might be an option to consider. Of 
course, applying the Cedar devices in the proper sequence might provide 
even better results, but the cost is, of course, greater.

Happy compressions!

And I'd certainly listen to some a-b stuff that you posted.

Richard

At 01:04 PM 1/17/2002 -0600, you wrote:
> Or post some tests and let us download and evaluate for you, real world
> assessment.
>
> Joe Salerno
> Video Works! Is it working for you?
> PO Box 273405 - Houston TX 77277-3405
> http://joe.salerno.com
> joe@xxxxxxxxxxx
> ----- Original Message -----
> From: "David Seubert" <seubert@xxxxxxxxxxxxxxxx>
> To: <ARSCLIST@xxxxxxxxxxxxxxxx>
> Sent: Thursday, January 17, 2002 12:36 PM
> Subject: Re: arsclist cylinder frequency range
>
>
> > Thank you George and Peter for you helpful posts. I will certainly take a
> > look at the AES publication.
> >
> > So far we have found that when compressing files using Quicktime that the
> > less noise in the source, the better the compression works. Given the
> > amount of noise in a cylinder, we are going to have to use some sort of
> low
> > pass filter or the compressed files will sound terrible. We haven't yet
> > decided what frequency the low pass filter should be at. When our tests
> are
> > done, results will be posted on our website.
> >
> > David
> > David Seubert, Curator
> > Performing Arts Collection
> > Davidson Library Special Collections
> > University of California
> > Santa Barbara, CA  93106
> > (805) 893-5444 Fax (805) 893-5749
> > mailto:seubert@xxxxxxxxxxxxxxxx
> > http://www.library.ucsb.edu/speccoll/pa/
> >
> > -
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> >
>
>
> -
> For subscription instructions, see the ARSC home page
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