On 2013-04-25, Bearcat M. Şándor wrote:
If the 4 channels of a b-format mic give you all you need for the mathematical computations for 3-D space, why do we have Ambisonic mics with more than 4 channels and orders with 8, 16 and more channels? What does having a 4 channel (w, x, y and z) mic restrict you?
It gives you everything in a point, but not everything that is happening around the point. In practice it translates into poor directional selectivity and a limited size of the sweet spot. Thanks to the psychoacoustical processing that always goes along with ambisonic, the limitation is not so bad as you'd think from the extremely low count of four channels for full 3D, but it's still there. Especially for wide area work -- for your living room, even three channels can do a magnificent job if calibrated right.
Never hesitate to ask more, either. There's more than one evangelist on-list who'd love to fill you in. :)
-- 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
