[vorbis] Copy protected CDs (off-topic)

Frank Klemm pfk at fuchs.offl.uni-jena.de
Wed Dec 20 15:55:42 PST 2000



::  On Wed, Dec 20, 2000 at 02:45:57PM -0800, Dan Hollis wrote:
::  > On Wed, 20 Dec 2000, Segher Boessenkool wrote:
::  > > But the most-occuring problem with CDR audio CD's is clock jitter, like
::  > > Gregory mentioned.
::  > 
::  > Then this would affect non-CDR audio CDs equally as well.
::  
::  No, the better CD mastering equipment is VERY well isolated and much better
::  clocked then CDR.
::  
I've never measured any audible jitter. Jitter is a joke of the audio
equipment industry.

A simple test case is to record 18 kHz on a CD and play back this via
headphone (for speakers it is dangerous).

You hear:
  * Modulation noise of the amplifier (hum, noise)
  * Bit errors (clicks)

Every amplifier I've tested are so worse that you haven't any chance to
hear the effects of jitter.


-- 
Mit freundlichen Grüßen
Frank Klemm
 
eMail | pfk at uni-jena.de       home: pfk at schnecke.offl.uni-jena.de
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