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ivan@stellysee.de
| From | Wizface@aol.com |
| Subject | Declicking of LP's |
| Date | Tue, 4 Mar 2003 18:34:47 EST |
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I would think the easiest way to get a good sounding CD version of an LP that
isn't too rare, and for which fairly decent quality LPs exist), would be to
have transfers of multiple copies. Once you get their waveforms matched up,
you would simply start with the cleanest version, and whenever there is a
section with a defect, you click on one of the other copies to find one where
the corresponding section is clean sounding. Obviously, this could be
easily
automated, i.e. by having a program which compares each audio sample, and it
wouldn't require a complex algorithm.
Actually, it's a bit more complex than that, since every time you play a
record, it does not come out exactly the same length. You pretty much need
near-sample accuracy to pull off the alignment job, which requires an
autocorrelation program to be constantly correcting the alignment. It is
done. But I'm not aware of its existence in commerically available software.
>
> What's the best software at a reasonable price, that can repair defects?
> On
> my mac, I'm using cheap shareware software (Amadeus) that can do a fairly
> well
> job of finding loud clicks. The small ones are the ones that it has
> trouble
> with. However, I devised a simple solution, I cut and paste the section
> which
> has the defect into another window, and I slow the music down by 1/5. I
> can
> then usually hear and easily discover where the click is. This technique
> is
> especially useful when the defect isn't a pure spike.
>
> Mark
>
There's some really good stuff available on pro tools for the mac- but it's
costly. Waves (direct X plugin) has some fabulous stuff that comes with the
waves Gold for $1300. But the cheapest software that's still rocks is Sonic
Foundry's Noise Reduction 2.0, which can be had for like $179 or something.
Used correctly it shines over alot of the waaaay overpriced softwares... a
tad bit of ear training is required on most of these or you end up destroying
the sound rather than restoring...
-mike wiz
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