The Stones in 24 bit - HD Tracks

[linnrd]

(2011-03-26 20:19)KnockKnock Wrote:  Here is somebody who don´t think it´s that good:

http://itrax.com/Pages/ArticleDetails.ph...1&x=24&y=8

Sigh...another brilliant example of picking the facts that are favourable to ones argument and ignoring reality.

Mr. Waldrep's comment "As you can see, this track doesn't extend beyond 14 kHz, which obviously doesn't require an 88.2 kHz sample rate!" illustrates that he understands the intricacies of the Shannon-Nyquist theorem. If all we were interested in was the performance in the frequency domain, then all the Neil Young 24-192 should sound perfect at a sampling rate of about 30 Hz as well. In simple fact, it doesn't.

The obsession with frequency domain leaves out the reality of what is happening in the time-domain. If one is samples at 28 kHz, which according to Waldrep's spectra is all one needs to reproduce the 14 kHz frequency, we would be sampling data about every 35 microseconds. Unfortunately the rise time response of the human hear can detect signals that physically cannot be reproduced with such a sampling process. The higher sampling rates capture the time-signature of the signal far more accurately than the lower sampling rates, which is why such digital files sound more natural in comparison to the original sounds.

[Manelus]

(2011-03-26 22:43)linnrd Wrote:  

(2011-03-26 20:19)KnockKnock Wrote:  Here is somebody who don´t think it´s that good:

http://itrax.com/Pages/ArticleDetails.ph...1&x=24&y=8

Sigh...another brilliant example of picking the facts that are favourable to ones argument and ignoring reality.

Mr. Waldrep's comment "As you can see, this track doesn't extend beyond 14 kHz, which obviously doesn't require an 88.2 kHz sample rate!" illustrates that he understands the intricacies of the Shannon-Nyquist theorem. If all we were interested in was the performance in the frequency domain, then all the Neil Young 24-192 should sound perfect at a sampling rate of about 30 Hz as well. In simple fact, it doesn't.

The obsession with frequency domain leaves out the reality of what is happening in the time-domain. If one is samples at 28 kHz, which according to Waldrep's spectra is all one needs to reproduce the 14 kHz frequency, we would be sampling data about every 35 microseconds. Unfortunately the rise time response of the human hear can detect signals that physically cannot be reproduced with such a sampling process. The higher sampling rates capture the time-signature of the signal far more accurately than the lower sampling rates, which is why such digital files sound more natural in comparison to the original sounds.

I concur Linnrd, time is the key for sampling rate, not only frequency response.