AmigaActive (2289/2307)

From:Don Cox
Date:31 Oct 2000 at 20:23:02
Subject:Re: MP3 decoding/MakeCD

On 31-Oct-00, Dauber wrote:
> Kevin Twyman wrote:
>
>> I thought I read (in MakeCD.guide somewhere?) that audio lost quality
>> if recorded/burnt faster than single speed? Or was this written
>> before the advent of good, modern CD-Rs?
>
> I don't understand the logic of losing audio quality...I mean, how is
> that possible since by burning a CD you're basically just copying 1s
> and 0s?? The only thing I can think of is if you burn too quickly,
> there will be random clicks in the tracks...

If the number of errors is too great for the Reed-Solomon correction,
the CD player will guess any of the 16-bit numbers it can't read, using
a simple interpolation. If this is happening a lot, you would hear it as
distortion. A badly recorded CD could be near the threshold of
readability all through.

The same CD might be readable on another machine with different optics
(or just a cleaner lens).

Regards



Don Cox
doncox@enterprise.net

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