Are CD players really digital...

The term digital refers to a state of an item having 2 possible values 1 or 0.

What is used to either change these states or read these states is irrelevant, and could well be an analogue circuit, and will not change the fact that the original data stream was in a digital state.
 
I don't think you had time to read the whole article... :shame:
 
:ffrc: :ffrc: :ffrc: :ffrc: :ffrc:

ahh the infamous gaps between the samples rears it bollocks head yet again. surely it's obvious to even the biggest dullard that any signal in the so called gaps has a frequency greater than that captured? also in all his ramblings about amplitude sketchy clues he doesn;t say WHY he believes this to be the case, hence his entire argument is, as has so eloquently been stated before, utter :knight:
i'd say the guy doesn't in fact HAVE a clue, sketchy or otherwise.
cheers


julian
 
Quite right Tone. At the end of the day, all digital circuits are analogue in nature, consisting as they do of varying analogue voltages. The quality of the 1's and 0's, as defined by adherence to the voltages defined as 1 and 0, is very important to the correct functioning of the circuit, particularly in the time domain. Shabby digital waveforms lead to shabby sound.
 
This is the reason that CD-Rs sound better when written at low speed rather than high speed. It's the quality of the 1's and 0's.
 
Regarding this and the other thread:

I only took a cursory glance at the two reviews or whatever they're supposed to be. Urgh!

I have long given up on IAR. Their level of technial understanding is so low that it pains even me, a non-engineer.
 
Originally posted by Markus Sauer
Regarding this and the other thread:

I only took a cursory glance at the two reviews or whatever they're supposed to be. Urgh!

I have long given up on IAR. Their level of technial understanding is so low that it pains even me, a non-engineer.
Click to expand...

It doesn't take an engineering diploma to understand what he says, and quite well he does too... :p

No wonder the Isobearings and ERS on my player improved the sound so much... :MILD:
 
I like the idea of putting another CD on top of the one being read, but would that perhaps wear the transport out? Or could the CDs get jammed? Anyone tried it?
 
It makes sense to me, what hes actually saying is that the accuracy of the system cannot be taken for granted, and that inaccuracies will have an effect on the final analogue audio signal.

If the clock frequency is unstable (which all of them are, to an extent), then the frequencies reproduced will not accurately represent those that were initially coded prior to the CD being pressed. Its called distortion, and hes quite correct in pointing it out in his article.
 
Has a anyone tried these tweaks?

Has a anyone tried these tweaks - on the same web site?

The first is a turntable that trims the edge of cds :yikes: and the second is a demagnetizer for cds :eek:
 
tom,
tou are quite correct in stating that cd's clocking systems are imperfect however this is called jitter and is well undertood. a competant cd player these days will produce less than 150 picoseconds of error some are down to single figures with schemes like chords 4 second buffer and varioous styles of clock link. the kind of psuedery and half truths being bandied about by the site in discussion seem to me to be purely to support the claims of the 'tweaks' manufacturers. to me this is only one step away from beltism and should therefore be ridiculed at ever opportunity.
if you thought that article was enlightening perhaps you'd find this even more so...

http://www.belt.demon.co.uk/

after that i've got some land in florida and a bridge in new york you may be interested in.
cheers


julian
 
Originally posted by julian2002
after that i've got some land in florida and a bridge in new york you may be interested in.
Click to expand...
Now hold on there Julian. You're definitely encroaching on my own style of advertsing here.

This is my latest attempt at eBay advertising. However, the link with my web site is subtle at best and most people don't get it. When I tried a direct link on the listing it was banned for violating eBay's link policy. It remains to be seen whether they will pull this one.
 

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