Augustine Leudar wrote:
so yes - there is a slight difference - Vbap has to based on triangles -
other forms of amplitude panning don't
If you use amplitude panning between more than 2 (2D) or 3 (3D/VBAP)
speakers, you could run into some trouble. Including pX-talk between
more than 2 speakers in the horizont. plain... (same phantom source9
This might lead to quite messy ITD and ILD problems.
So I believe it could make a lot of sense to apply amplitude panning to
the exact minimum amount of speakers you would need to produce some
phantom image effect. Which means 2 speakers in the 2D case, 3 in the 3D
case.
Just to present some crude and rude ideas about "different panning
strategies"... :-D
Best,
Stefan
On 10 January 2017 at 09:57, Augustine Leudar <augustineleu...@gmail.com>
wrote:
should have said "VBAP allows you to pan between the nearest three"
On 10 January 2017 at 09:56, Augustine Leudar <augustineleu...@gmail.com>
wrote:
but not to be crude but ;) some people get really anal about these
things - so in pre defense of such anality - stereo amplitude panning
allows you to pan between two speakers - theoretically you could have a
kind of amplitude panning that allows you to pan between the nearest two
speakers on the surface of a sphere - but amplitude panning allows you to
pan between the nearest three - so you can have sound son three speakers at
a time (if I remember correctly) or ou could have a kind of amplitude
panning that allows you to pan on more than 3 or Dbap - but yes its all
just amplitude panning - nice simple and works .
On 10 January 2017 at 09:51, Augustine Leudar <augustineleu...@gmail.com>
wrote:
Yes Im well aware of that thanks.
On 10 January 2017 at 02:35, Sampo Syreeni <de...@iki.fi> wrote:
On 2017-01-09, Augustine Leudar wrote:
and of course I mean amplitude panning rather than vbap in that
instance - but I have had reasonable results doing the same for full 3D
installations as well, at least as resoble as can be expected representing
a 3D audio scene in stereo (which is never very good in any format)
Not to be a prude, but... ;)
VBAP is short for vector base amplitude panning. So it's really just
amplitude panning. It's absolutely no different from your typical
left-right panpot, except that it's been generalized from the 1D line going
from left to right, to the 2D sphere surface which is the space of
directions. Technically, that surface's triangulations: where you had left
and right on your panpot before, now you have triangles over the sphere of
directions.
But it's still just basic equal energy panning; sinusoidal
interpolation between points; now just among three while there were two
before. Simple as that. :)
--
Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front
+358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2
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