On Sat, Mar 02, 2013 at 04:56:16PM +0000, Paul Power wrote: > This message is directed to Fons, i have been using your excellent > ambdec for a while now with horizontal set ups, mostly using an > octagon, to do HOA decoding of spot mic recordings, and also > experimenting adding other decoders in to introduce height element > via a cube configuration for ambience e.t.c. using soundfield mic. > However there are obvious drawbacks with this which are annoying, > because one decoder does the horizontal, and another for height > there is no possibility for a homogenous rig.
If you use horizontal only HOA panned sources and separate 1st order with height from a SF mic then using two decoders is the correct procedure. They could share some speakers, but in this case little will be gained by doing that. It would be possible to combine them into a single Ambdec preset, but if the HOA part is horizontal only this would reduce the quality of reproduction of that part - the decoder would use the cube speakers as well for horizontal sounds. The only way to avoid that would be to use 3D panning. In that case the combination of an octagon could support up to second order vertically, but not really very well. In fact it would be 3h1p system, not 3h1v. And in any case it would be a compromise between the HOA and the soundfield content, since the decoding for these has to be different. > You do say in your manual that you could on request generate presets > for set ups, (big ask) but could you generate a couple of presets > (1st, 2nd order) for my rig please? I can do that, but then I need the exact layout of your rig, and some idea of *how* you will use it (order, and if you want 3D for the panned sources). If you want a full 3D second order system using the same number of speakers you could have 3 rings: 6 speakers at ear level and two rings of 5 above and below. For third order you need at least 6 + 8 + 6, i.e. 4 more speakers. 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 [email protected] https://mail.music.vt.edu/mailman/listinfo/sursound
