Thank you to all who replied to my post. Special thanks to Fons, Jörn and Fernando who have suggested practical starting points.
I will make some calculations and decide on what will be most practical for my experiment. I will report with my successes (or failures). Many thanks! - martin On 12 February 2016 at 22:45, Fons Adriaensen <f...@linuxaudio.org> wrote: > 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. _______________________________________________ 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.
