[78-L] Record transfer question, was 78-L Digest, Vol 24, Issue 27

[Tim Huskisson]

Is it the case that the algorithms in noise removal programs are also
designed to work more effectively on 78s that have been transferred using
the (incorrect) RIAA curve? I ask because I seem to get far better results
this way with de-clicking  BEFORE applying a reverse RIAA curve. 

Regards

Tim Huskisson


-----Original Message-----
From: 78-l-bounces at klickitat.78online.com
[mailto:78-l-bounces at klickitat.78online.com] On Behalf Of Doug Pomeroy
Sent: 18 September 2010 02:14
To: 78-list
Subject: Re: [78-L] Record transfer question, was 78-L Digest, Vol 24, Issue
27

The algorithms in noise removal programs are designed around
processing music played at the proper pitch.  Years ago I experimented
extensively with noise removal (CEDAR) applied to files played both  
faster
and slower than normal.  The results were not better.

In some cases de-clickers may work better if the audio is running  
backwards,
it effectively puts the sharp transient spike at the end of a "click"  
rather than
at the beginning, which may make it easier for some de-clickers to  
repair.
But, with the best de-clickers I have found this approach offers no  
improvement.

Doug

> Message: 2
> Date: Fri, 17 Sep 2010 21:52:44 +0200
> From: "Milan Milovanovic" <milanpmilovanovic4 at gmail.com>
> Subject: Re: [78-L] Record transfer question, was 78-L Digest, Vol 24,
> 	Issue 27
> To: "78-L Mail List" <78-l at klickitat.78online.com>
> Message-ID: <DCBB6A38A7A34A86BF3B210D18F4EE4E at soundc135d3a8b>
> Content-Type: text/plain; format=flowed; charset="Windows-1252";
> 	reply-type=original
>
> Will declicking and decrackling algorithms work better on slower speed
> transfers than on 78 rpm?
>
> Thanks,
>
> Milan
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