On Tue, Feb 09, 2016 at 09:51:32PM +0000, Martin Dupras wrote: > At this moment in time, I have the opportunity to deploy (next week) a > 16-channel array, so I would like some advice on a configuration that > would be a good start to experiment with Ambisonics with height. > Someone suggested that I consult the wikipedia page on Ambisonics. > That is indeed where I got the idea that an "upper hemisphere" setup > might be suitable, since I only have on this occasion 16 speakers. > There is however no suggestion as to what a suitable hemispherical > configuration might be for a 16-speaker array, which is why I asked my > original question.
Provided you don't have 'below the horizon' content, a ring of 8 ten degrees below horizontal + a ring of 6 at 45 degrees up + (eventually) a single zenith speaker would be more or less optimal. So that's 14 or 15 speakers. The reason for placing the horizontal ring a bit low is that most algorithms when computing a hemispherical decoder will actually (or implicitly) compute a full sphere decoder and then drop the lower part. There result is that horizontal sounds are 'pulled up' a bit, as Fernando already pointed out. 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.
