Computer Audio Asylum: RE: Better duck under that desk; by Ryelands Music servers and other computer based digital audio technologies.

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Posted by Ryelands (A ) on August 4, 2009 at 02:55:41

In Reply to: RE: Better duck under that desk; posted by riboge on August 3, 2009 at 19:46:06:

Riboge wrote:

"Maybe so, but we can't be sure until we test ..."

A fair point but, though my mathematics would struggle, surely it's possible for those more numerate than me to say unequivocally whether the changes Kuncher has detected can or can't be resolved by 44.1 KHz sampling.

If they can, then it is a question of testing whether, in practice, they are. If they can't, there seems little purpose in testing anything though no doubt someone will demand it.

On other forums where the issue has been discussed (such as HydrogenAudio and Stereophile, with the latter as unpleasant as Werner reports) there are several posts saying "This man is wrong", "Call the firing squad", "Who does he think he is?" and all the usual tosh but I can't find any explaining why he is wrong. It seems to be taken as self-evident.

Any takers here? Did I miss something?

If the sums do suggest he is wrong, it should be possible, using his apparatus, to record test tones at 44.1 and, say, 192 KHz and see what listeners can or cannot detect at either sampling rate. Good Grief! - you could even use a double-blind test (assuming you knew how to design it).

BTW, I don't get Tony's argument that the tests should have used a frequency more in line with RBCD parameters. As I see it, Kunchur was researching human hearing, not RBCD technology, and presumably (and certainly should have) chose his tones accordingly.

That said, I agree that using more than one frequency could have provided useful data with the obvious hypothesis being that discrimination would tend to be more acute in the mid-band and taper off at the extremes. How feasible it would have been in practice I can't say.

Dave

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