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I have many reservations on tc-04. It has very useful information but it 
was funded partly by commercial companies and it is evident in the 
conclusions it draws in certain areas. Read with caution.
Shai
בתאריך 14/08/12 5:08 PM, ציטוט Richard L. Hess:
> Hi, Hugh,
>
> There is some information available for this. As far as treating 
> obstinate tapes, I am trying to maintain an up-to-date resource on the 
> subject.
>
> The best international standard so far that I've seen is IASA TC-04 
> and it's available online.
> IASA's TC04 on audio preservation is available online (and for a fee 
> in a print edition)
> http://www.iasa-web.org/tc04/audio-preservation
>
> I introduced th concept of cold playback (and hopefully explained it 
> well) as well as attempted to cover the then state of the art in tape 
> degradation in my paper on tape degradation that was originally 
> presented at the Audio Engineering Society's 121st convention in 
> October 2006 in San Francisco was published in the ARSC Journal in the 
> Fall of 2008. It is available here:
> http://www.richardhess.com/tape/history/HESS_Tape_Degradation_ARSC_Journal_39-2.pdf 
>
>
> I attempt to keep a current (as we know it here on this and other 
> lists) log of what tapes degrade in what manner and how to recover them.
> http://richardhess.com/notes/formats/magnetic-media/magnetic-tapes/analog-audio/degrading-tapes/ 
>
>
> There may be specific applications to various scenarios, try the 
> search box. I think there are now over 100 pages there--both static 
> and in the blog.
>
> For squealing Shamrock, I have a specific article on another method of 
> recovery:
> http://richardhess.com/notes/2007/11/08/success-with-squealing-shamrock-031-tape/ 
>
>
> Finally, there is a blog category tag that you might wish to browse. 
> The categories are listed below the static pages in the right sidebar.
> http://richardhess.com/notes/category/archive-operations/tape-aging/
>
> Also, to further Shai's comment, even people who would be competitors 
> on the same continent (and even the same time zone) while a business 
> was on a growth curve tend to band together to solve clients' 
> problems. We all know that there is more work out there to do than can 
> be done by all of us put together --- if it can be funded. While there 
> is much overlap among tape restoration folks, there is also a good 
> deal of specialization. One great example is that while Steve 
> Puntolillo and I are a day's drive apart and we overlap in many 
> formats, we both are really aiming in different directions and at 
> different markets. He is focused on doing multi-track masters. While I 
> can do many (but not 2-inch), I focus on two-track mixed masters and I 
> feel an important calling to preserve oral history--especially that of 
> vanishing cultures, of which we have too many here in Canada.
>
> Cheers,
>
> Richard
>
>
>
> On 2012-08-14 8:16 AM, Hugh Paterson III wrote:
>> Shai,
>> Is there a hand book for this kind of knowledge?
>>
>> - hugh
>>
>>
>

-- 
בברכה,
שי דרורי
מומחה לשימור והמרה של אודיו וידאו וסרטים 8-35 ממ.