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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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In Reply to: Human differential localization discussion posted by jneutron on June 8, 2005 at 09:48:22:
Hi JohnWhilst I feel that you plans are a laudable attempt to analyse the auditory perceptions of what we hear and to quantify even approximately why wires etc sound different.
I will ask you to consider your assumptions.
1. ...The assumption is that the ears are 6 inches apart, and are ideal, non directional receivers.
The ear is a partial forward facing directional horn. (A horn has a very interesting set of acoustic properties that may well help the resolution of difference in a sound -increased sensitivity) The outside edges may be, for argument sake be 6 inches apart, but the actual receptors are at a shorter distance - this relevance of actual distance may or may not be academic - only experimentation will prove it. The actual receptors of the sound are individual resonators tuned to a single very narrow bandwidth, and there are lots (1000's) of them, all feeding individual nerve endings. These nerve endings feeding the primitive brain first before passing information to the higher brain functional areas.
So these act as wide band spectrum analysers each presenting the brain with pitch, magnitude and time information, and is logarithmic.
I don’t believe that any microphone (a funny sort of near linear device that measures rate changes in volumemetic pressure differences) can present that information accurately enough to replicate what "we feel we can hear", and its the FFT s/w able to define the correct level of detail >1/128 octave.3. ...will be limited to anechoic space..
The use of anechoic space for real ears is a psychological nightmare, as its un-natural. But having spent time in such rooms listening to speakers (boy they sounded weird to me) im not sure if a human could tell the difference between bell wire and CVH's cat5 pythons (clarity and space) being the CVH's obvious virtues over bell wire -this could be worth checking out for anyone who claims to be able to hear cable differences and has access to such a room. - I don't work in or have access to such areas anymore.Well that my 10pence worth for the mo. I hope it helps your planned work.
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Follow Ups
- Re: Human differential localization discussion - chris_w 12:25:14 06/08/05 (1)
- Hi Chris. - jneutron 14:33:08 06/08/05 (0)
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