In article , John Phillips
wrote:
On 2008-07-07, Jim Lesurf wrote:
See also the articles on this on audiomisc in the 'hearing' section
which also considers hearing nonlinearity in this context.
Thanks for the pointer. I have looked at your "Ringing in the Ears"
article. I believe it confirms precisely what I suspected. There's a
possibility that some effects which in a linear hearing system would be
innocuous may be audible with real-world non-linear hearing. At least
it seems that the possibility cannot be excluded without further checks.
I was wondering also about the issue of whether the linear system
equivalence of frequency-domain and time-domain signals might not be
preserved in non-linear human hearing. That is, does the "normal" 20
Hz - 20 kHz human-audible bandwidth imply an equivalent ability to
resolve time-domain differences or does non-linearity break that
equivalence?
Afraid I can't say. There are various bits of work that support such ideas,
but I've not seen anything that seemed conclusive in showing they actually
matter in practice.
Various things in this area are 'possible' in the sense that you can
propose a hypothesis that isn't clearly falsified by what we know, and
might explain some claims. But this isn't the same as the hypotheses being
correct descriptions of what actually occurs. I fall back on the fact that
I've never heard the 'differences' involved so far as I can tell, and I've
not seen reliable evidence that anyone else has, either.
So I regard it as fair enough to consider such possibilities, at least for
the purpose of seeing if they have any plausibility. But I don't then
assume they must be so in practice. For that, I await evidence which can be
shown not to be due to one or more of the usual errors people make when
making claims.
Slainte,
Jim
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