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Article #1098

Re: Audio quality of CDR, any theory ????

#1098
From: Richard D Pierce
Date: Sat, 19 Dec 1998 00:00
59 lines
3567 bytes
In article <9AC33C397E6F7EEC.EB514CB227F8BAFB.F49C9B9A4FBF795C@library-proxy.airnews.net>,
Chung <kclee@hk.gin.net> wrote:
>Yap, I don't know any Theory and Technique of CD format.  Thankyou for
>your correction.  What I thinking in logical way only.  

How is ignoring the facts logical?

>But if the
>error correction is 100%, all transport could read 100% correct, mean
>all transport sound same!!. 

Bot if the transports show iming, not data errors, and not if the DAC
clock is tightly coupled to those timing errors (a sign of a poorly
designed DAC).

> So, why need expansive transport???  

If the issue is to extract data without errors, in fact, many less
expensive transports do it better then some expensive ones. So, no, to
extract data error free, you do NOT need and expensive transport.

>and why the supporting pin under transport affect sound???

Does it? You assume it does but wht proof is there that it sounds
different?

> Also, why different CD material/coating give different sound???

Does it? You assume it does but what proof is there that it sounds
different?

YOU claimed that audio CD transports do not have error correction. you 
did't say anything about sound, you said audio CD transports do not
have error correction. That statement, all by itself, is just plain wrong. 
I challenge you to show us signle audio CD transport thhat does not do
error correction. The CD CANNOT BE READ without pplying error correction
because the error correction daa is embedded in the data stream and ALL CD
players MUST apply the error correction to get the data, or the will get
NO data, wether there are errors or not. 

YOUR claim was that audio CD transports do not have error correction. YOUR
claim is WRONG. It's that simple.

Now, if you want to start asking questions like hy does this or that make
a difference, that's a different set of questions altogether. And if you
want to make claims that different colors or differnt "pins" sound
different, well, that's YOUR claim, and YOU need to provide some credible
support that it does.

We have already seen how credible one of your claims is. Remember, the one
where you claimed that audio CD transports have no error correction? You
know, the claim that was wrong?


-- 
|            Dick Pierce            |
|   Professional Audio Development  |
|   1-781/826-4953  Voice and FAX   |
|       DPierce@world.std.com       |
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From: DPierce@world.std.com (Richard D Pierce)
Subject: Re: Audio quality of CDR, any theory ????
Date: 1998/12/19
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