On 04/12/2018 03:33 PM, Jack Reynolds wrote:
So is a larger radius A-Format mic not a problem then? I always thought the 
radius dictated the upper frequency limit for spatial aliasing.

The radius defines the frequency at which the array stops behaving like a coincident array. Above that frequency filters are normally used to try to compensate for that, but they cannot equalize the array equally well in all directions. A smaller array will be better in the sense that those problems will happen at higher frequencies.

-- Fernando

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