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HOA 3d to FOA 2d?

Hi,

I have a 3D 3rd order HOA stream feeding 20 speakers (spat5.hoa.decoder~) and I recently added 4 subs. I am running the 3rd order stream into spat5.hoa.reduce~ to get my FOA stream and route W,Y & X (Z left unconnected) into spat5.hoa.decoder~ (@order 1 @dimension 2D) to feed the subs.

Is there a better way (or one that does not lose information) for me to go from 3D to 2D in spat? Like spat5.hoa.reduce~ but for dimension?

Cheers,
Jimmy

Hi,

You can use spat5.hoa.downscale~

Best,
T.