On 2013-04-24, Peter Lennox wrote:
It's only a tiny point, but Sampo, you said "... because our vertical resolution is so bad..." Strictly, our perception in the vertical plane isn't the same as in "elevation", except for the special case where the head is kept still, not tilted.
Fully granted. My wording was nowhere near a proper psychoacoustically well-founded, precise description of what I alluded to. But at the same time, even differentially speaking, elevation and its ilk are a royal pain. No? Away from the horizontal plane, things get complicated, yes, but the overarching, mean, so-so picture is that we perceive elevation less accurately. No?
'In the wild', we do move and tilt our head, especially when auditorily interrogating the environment, resulting in acuity for vertical information that is more similar to that for horizontal than the literature might suggest.
Again, fully granted. Once you're allowed to move your head beyond the Green-Lee necklace, you can and you will gather more information. You're rather adept at doing so as well. There even dynamic cues matter a lot, as evidenced by head tracking.
But that still doesn't take away the fact that pointwise in time you suffer in average vertical resolution, nor does it take away the fact that by and far most people never get anywhere near to a vertical spacing of their ears. Thus, both a psychoacoustical and also a physical acustical limit on angular resolution away from the horizontal plane. No?
I know it's a convenient shorthand to equate azimuth with horizontal and elevation with vertical, but it's handy to remember they aren't identical ;)
In binaural playback they differ. In ambisonic they don't, due to the perfect spherical symmetry. I started out with the perfect periphonic rig, once again, so actually from my viewpoint the difference simply wasnt theree to begin with.. Just sayin, since we of course agree about the substance proper. :)
-- Sampo Syreeni, aka decoy - [email protected], http://decoy.iki.fi/front +358-50-5756111, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 _______________________________________________ Sursound mailing list [email protected] https://mail.music.vt.edu/mailman/listinfo/sursound
