Bearcat M. Sandor wrote:
On 7/11/2011 8:30 AM, Stefan Schreiber wrote:
However, the "12+ channel" audio system (for Ambisonics?) is a
caricature, at best. 8 horizontal speakers would be enough for
Ambisonics 3rd order, for home purposes. 1st order can be reproduced
with 4 speakers, you really won't need more than 6. Everybody knows
this... :-)
In this sense, your posting was polemic, because you also knew this.
Right?
Best regards,
Stefan
P.S.: Unless we speak about "full sphere 3D", and Ambisonics would
need more speakers. However, the thead topic says "360 degree sound".
Therefore, 360º horizontal suround sound and "3D sound" has been
mixed up in the following postings...
Prof. Choueiri's solution requires special speakers and a controlled
environment, in my understanding. I remain sceptical if the
peformance of this system will come close to a real surround system,
which would have to been tested in an objective way. (I have said
that my critic doesn't refer to Ambiophonics, which is not an
"extreme XTC for everything" solution. Maybe I am also polemic...
:-) )
Right. I was speaking of 360 horizontal. Just to be clear, how many
speakers are necessary at minimum for a "full sphere 3D" system? I've
been told that a double twisted hex (3 in front, 3 in back at ear
level, and 3 in front, 3 in back up high twisted 90 degrees from the
ear level set) would do it for a total of 12 speakers. Or would you
need 18 speakers. I've never seen a picture of what a full 3d sphere
layout looks like.
Bearcat
The minimum for surround with height is 8 speakers, for Ambisonics 1st
order. If the sphere is full-sphere (and not half-sphere), you probably
need 12+ speakers, although I suspect there could be a solution with
less speakers than 12. (Feeback welcome...)
Some have tried to reproduce "some" height information via a 7.1 layout.
(And even 5.1, but here there are severe limitations.)
Bye!
Stefan
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