On 2021-12-01, Marc Lavallée wrote:
With a bit of algebra, f_a = c N / ( R 2 pi ). So a smaller radius for the sphere would improve f_a? Was 0.0875 m chosen in order to embed some hardware?
By the way, I think it would be nice to talk about the two different forms of spatial aliasing: that which manifests in linear coordinates, as in WFS, and that in spherical coordinates, as in HOA.
Those two means of analyzing spatial aliasing are not at all the same, and cannot be neatly put into conjunction. If you try to do it, the necessary, intermediary functions are rather special, and difficult to the hilt to master. You'll immediately go into something like Glegst-Gordan coefficients, which ain't nice.
Even proper mathematicians shy away from that stuff, unless *absolutely* necessary. :/
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