rotation direction quirk?

[danieleghisi]

Hello everyone,

I am having some difficulties in understanding why this quirk happens: I'm using the hoa.3d.encoder~ helpfile; i'm encoding a source at 90° left, I can see it in the scope (which shows that positive azimuths seem to turn left in HOALibrary); however as I decode it onto my loudspearkers, the image is exactly mirrored, and my source is at right.

I've tried to see whether I did something wrong but I cannot really see what I may be doing wrong: just using the help patch, with the correct definition of the loudspeakers (indeed everything works fine, only the image is exactly mirrored with respect to the one in the hoa.scope~).

Does anybody have a clue?
I am using HoaLibrary beta 2.2, Max 8.1.5.

Best,
Daniele.