Tim, I appreciate you taking the time and I do understand what you're saying and while you did explain, in the context of the above, mine is of a different argument.
I do not believe that digital sampling is directly related to the physical properties of the original sound, as much as that of analog. It can't be because when you 'sample', you effectively throw away information, wherever it is contained. Is this in dispute?
ausrock pointed out earlier that digital "omits" rather than "misses". I'm not sure if it omits or misses but it's one or the other or both. In whichever case, digital is not 'analogous' [pardon the pun] to the original source or waveform. It can't be because 'sampling' effectively makes this impossible.
Natural life, on this earth, processes in analogue, tape machines record and playback analogue. We're creatures, which process in pure analogue and not ones which deal well with A/D D/A conversion. I can hear it and I can feel it. Am I missing something? Science aside, isn't this just common sense?
A question thus begs to be asked: Why do many people accept the sound of digital or is 'accept' not the right term?
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Your last question is a very good one, and one I expect might continue for you.
The same for the other question you raised which is why the vast majority of people are happy with CD quality even though the format was introduced in the early 80's, and since then the same people who invented it, Sony /Phillips also developed the SACD, but SACD has had incredibly small market penetration, even tho' I believe it is backwards compatible.
In effect the SACD is competing with its older relative the CD and losing out badly. If newer is said to be always better, the old CD is proof that's not always so. The reason?
I suspect that unless human hearing evolves to a higher standard (and evolves VERY quickly) the CD will continue to be a pretty good playback standard. The actual disc technology may change but 44.1/16 PCM is pretty solid for releasing of music, whatever the carrier.
Daniel I really encourage you to do that little listening test with 44.1, 22 and 11 sample rates. If you dont have the gear, have a friend do it with you. That's the listening part.
To the sampling part, which is more theoretical, see if you can get a friend to set up a CRO (oscilloscope) and a signal generator (all analog gear) and get him to feed in say a 100hz sine wave, but with the CRO timebase set to very fast (equivalent to very fast sampling)
What will you see? Not a sine wave but a straight horizontal line. Why is it straight and unchanging? Because the CRO is sampling it so fast and magnifying one small slice of the wave in time that there is effectively no change in the wave. It looks like nothing is happening.
That is what happens with fast sampling. Sample a 100hz wave at 44.1khz and the vast majority of the 44,100 samples per second look exactly the same. From sample to sample, nothing is changing, or seems not to be. (actually that's not quite true. It is changing but so infinitesimally slightly that we with our ears are unable to detect it) So from a strict scientific measurement point of view, yes, information is being lost, but
from a human hearing point of view, we cant detect such tiny changes) Above a certain sample rate, you gain nothing extra.
Our ears are limited in what they can pick out. Perfect accuracy in audio sampling is therefore both unattainable (whether with analog or digital) and gains no advantage in what we as humans can hear.
1.No it's not perfect,
2.that's impossible anyway, and
3.thankfully it doesnt need to be.
We live in a world of limitations, and actually that has some advantages. That's why all sorts of things are possible.
Anyway, must away. Off to a Karaoke night.
Cheers Tim