Firstly, I've never got beyond twelve (two stacked hexagons), so ignore my comments at your _non_-peril ;-)>
It strikes me, that it all depends on what you want from height : Your initial proposal was with the base ring at ear height. If your vertical 'stuff' is equally 'up' and 'down' you'd be better off with an octagon on the floor and another the same distance above ear height (plan A). If the vertical 'stuff' is both complex/essential _and_ all (/almost all) 'up' then a hemisphere sounds a better option (plan B). Plan A is theoretically 'easy peasy', but from my experience still quite fiddly (and time-consuming) to set up. Plan B s far more 'cutting edge' (both in mechanical set-up, but not least in decoding, ...). If this is : -(sort of) your first time -in a few days time -without a dress rehearsal then I'd lean towards Plan A. But, hey, with that sort of caution we'd never have discovered America . . . Good luck, Michael > Thanks for all the responses. Much appreciated. > > I'll re-phrase the question in light of some of the answers I've been > given. > > I will be using third-order Ambisonics. My aim mostly is to experiment > to get a good sense of what is possible with Ambisonics with height. I > have experimented successfully with 8-channel planar Ambisonics some > time ago. My primary intent is to spatialise multiple monophonic > (synthesised) sources using 3rd-order Ambisonics spatialisation, and > the playback of mixed sources (spatialised monphonic and stereophonic > sources as well as B-format 4-channel recordings.) > > 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. > > So let me ask a new question. Given the constraint that I can only use > 16 speakers at the moment, and that I need to deploy this next week, > can somehow point me in the direction of what might be a suitable and > reasonable geometric configuration to try out? It seems to me that the > only really practical options here are two stacked rings (stacked > octagons) or a hemisphere. I would have thought that the hemisphere > would be the better choice, and in my scenario, a full lighting rig > allows me theoretically speaking to have speakers at the required > positions. > > Again, thank you for all the responses. > > - martin > > > On 8 February 2016 at 15:19, Martin Dupras <martindup...@gmail.com> wrote: >> Hi, >> >> I'm intending to try setting up a 16-speaker Ambisonics array next >> week in a small TV studio. I'm trying to figure out the practical >> arrangements for setting up the speakers. I was wondering if anyone >> with experience might be able to offer some advice or point me in the >> right direction? >> >> What I'm planning at the moment is a half-sphere arrangement which >> would likely consist of: >> >> - 8 speakers in a circle of radius 2m at a height of approximately 1.6m >> - 6 speakers in a smaller circle at an elevation of 45 degrees >> - 2 speakers at an elevation of approximately 75 degrees >> >> Alternatively, I would be happy with an arrangement similar to the >> first 16-speakers in this diagramme: >> http://www.matthiaskronlachner.com/wp-content/uploads/2013/10/loudspeaker-plan-observatory.jpg >> >> I've been trying to find out if there is a convention or "most usual" >> arrangement but couldn't find anything. I'm not particularly attached >> to the actual arrangement, I just want to find an arrangement that >> will work well enough with 16 speakers. Any advice? >> >> The other thing I would welcome is advice on how to mount the speakers >> to lighting rigs in a manner that is practical enough to offer some >> good compromise between precision and ease of setup. I believe the >> speakers we'll be using for the upper tiers will be Genelec 8060s. >> >> Many thanks. Any advice will be greatly appreciated! >> >> Cheers, >> >> - martin > _______________________________________________ > 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.
