On 7/8/2011 2:40 PM, Fons Adriaensen wrote:
On Fri, Jul 08, 2011 at 02:06:37PM -0600, Bearcat M. Sandor wrote:
The ear canal is just a tube, so there's no
directionality once the waves are in there.
"Once they are in there". Which is why you can make things
work with headphones plus head motion tracking.
When using speakers, the sound has to get 'in there' first.
And you are allowed to turn and otherwise move your head,
so even when e.g. seated you can (and will) explore the sound
field around it, and your brain will correlate your movements
with the changes of the sound entering your ears. So getting
the right sound 'in there' is not just a matter of recreating
the sound field at the two points where your ear canals would
be if your head were clamped into a vise. You have to create
something matching the field of a real source at least in the
near vicinity. And it turns out you can't do that without energy
arriving from more or less the right direction.
Ciao,
Ahh! Ok, yes that makes sense. Since this effect is dependent on
messing with head related transfer function which is about time cues, I
would imagine that room treatments would have to be just right to
accurately capture the intended effect. Wouldn't reflection/absorption
have a huge role in this? They'd have to deliver sound that was
processed for the 'average room' wouldn't they, just like they're
delivering for the average ear/head.
Crap. I was really looking forward to getting 2 speakers instead of
12-18. :")
Bearcat
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