On Mon, Nov 25, 2013 at 03:14:02PM -0000, Richard Furse wrote: > However, the Rapture3D decoders (including the TOA ones) do NOT have this > problem. One of the core features of the Rapture3D decoder generator is its > handling of arbitrary/irregular speaker layouts - a LOT of work went into > this a few years ago. For the best quality output, you should feed these > decoders with the highest order actual signal you have, regardless of how > many speakers are present - the more accurate information these decoders > have, the better they can perform. They will make some use of higher order > components for almost all speaker layouts, although the amounts vary (the > only exception I can think of now is mono, where only the W/omni component > is used).
For irregular layouts I tend to agree - you could use the higher order information only in the directions the rig is able to support higher resolution. But none of the published 'automatic' methods claiming to create good decoders for irregular layouts do this. But for regular or almost regular rigs the only result of using higher order components that the rig can't reproduce without aliasing into lower ones would be to create 'detents' at the speaker locations. 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
