Out of curiosity - can I ask why you want to use ambisonics as opposed to other spatial audio techniques ?
On 9 February 2016 at 22:31, Martin Dupras <[email protected]> wrote: > Plan A is more or less my backup. I'm fairly confident that I can get > that working. For my needs the verticality is more important up than > down, I would say, but it's a good point that the amount of complexity > might make it a better option for my plans next week. > > I'll keep digging for a hemispherical layout though. Still not found a > single example yet. > > Thanks for all the help! > > - martin > > > On 9 February 2016 at 22:18, Michael Chapman <[email protected]> wrote: > > > > 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 <[email protected]> > 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 > >> [email protected] > >> https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, > >> edit account or options, view archives and so on. > >> > > > > _______________________________________________ > > Sursound mailing list > > [email protected] > > https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, > edit account or options, view archives and so on. > _______________________________________________ > Sursound mailing list > [email protected] > https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, > edit account or options, view archives and so on. > -- www.augustineleudar.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20160209/9b17c6e0/attachment.html> _______________________________________________ Sursound mailing list [email protected] https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit account or options, view archives and so on.
