On 2010-11-03, [email protected] wrote:
I'm still not sure what is bothering me about this but I _think_ it's something to do with the precise nature of the relationship between the symmetries in the icosahedron and the symmetries in the 3rd order spherical harmonics.
Hmm. Why don't you first try a conservative, in-phase decode? If that works better, then try moving the array closer, or at least some of its constituent speakers. I mean, we've already hashed out what the nulls of the spherically symmetrical Bessel functions could do to a mike. In this case it just might be those same nulls are proving to be a problem at the low-to-mid frequencies, for the reproduction array as well.
That sort of thing would never be a problem if we only used a naïve (or in-phase) decode. But then we go with rV and rE as well, where standing waves matter, and so the radial, Bessel-part of the solution to the wave equation matters just as much. In there the distance symmetry is broken, evenas the directional one isn't.
-- 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
