On Thu, Nov 25, 2010 at 12:03:55PM +1100, e deleflie wrote: > > Hmmm. The column heading says 'conversion to B-format/FMH', > > and the values are prefixed by an 'x'. This suggests that > > to get FMH you have to multiply the N3D component by the > > value listed. > > thanks for picking that up... I think it is more likely, in the > future, that B-format will be converted to N3D so I've change the > title to "Conversion 'from'" and I'll clearly indicate the names of > the FMH component channels.
Hmmmm (again :-). With g = 1/sqrt(3) you now have an extra gain factor of 1/3 ... What I'd expect is: W0 = W * sqrt(2) X1 = X * sqrt(3) Y1 = Y * sqrt(3) Z1 = Z * sqrt(3) X20 = U * sqrt(15/4) etc. You can include an extra gain factor to ensure all signals remain in the +/- 1 range, but that would depend on the order (it would be the inverse of the highest Zmm conversion factor). Also, why not W00, X10, Y10, Z11 instead of W0, X1, Y1, Z1 ? Apart from this I do find the naming scheme quite confusing. In the form [XYZ]ab we have a = l and b = l - abs(m). The alternative is [XY]ab, whith a = l and b = abs(m), in other words b is the multiplier of the azimuth angle. No need for Z, as it amounts to X*0. > (that will also help users route channels to Ambdec since Ambdec uses > the FMH component channel names as Jack channel names) The current version does, since it's limited to 3rd order. New releases do not have this limit and will use a different naming scheme (combining ACN, l,m and the Fuma name where it exists). Ciao, -- FA There are three of them, and Alleline. _______________________________________________ Sursound mailing list [email protected] https://mail.music.vt.edu/mailman/listinfo/sursound
