On Mon, Jan 09, 2017 at 06:27:15AM +0200, Sampo Syreeni wrote: > Basically VBAP (vector base amplitude panning) is a form of equal > power weighted amplitude panning. Just as your normal stereo panning > law would be, only it's in 3D, over widely varying speaker geometry.
VBAP is the 3D form of pairwise panning, and has the same problems. > The critique I'd have for such panning laws is that they don't > really respect the ambisonic/Gerzon theory, especially at the low > frequencies. In essence, they work, and necessarily would *have* to > work in the high frequency, (ambisonically speaking) high > order,sparse array limit. Which is why they mostly work for common > music and speech signals. Pairwise panning or VBAP vs. Ambisonics is just like linear interpolation vs. constant-bandwidht (sinc) interpolation. As the number of speakers / AMB order increases, the difference between VBAP and in-phase or max rE decoding becomes smaller. But not for LF where you'd use systematic decoding when using AMB. Ciao, -- FA A world of exhaustive, reliable metadata would be an utopia. It's also a pipe-dream, founded on self-delusion, nerd hubris and hysterically inflated market opportunities. (Cory Doctorow) _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit account or options, view archives and so on.
