Stefan Schreiber wrote:

umashankar manthravadi wrote:

This second order microphone will not be expensive. It is only eight channels rather than nine, but I believe this is an acceptable compromise. I will use the Zoom F8 to record. I am visiting Parma because Angelo intends developing a calibration system which will output nine channels after processing.

You can imagine a tetrahedron surrounded (on the horizontal plane) by four capsules at 0, 90,180 and 270 degrees. That is basically the array design.

Very nice - gives  easily 2nd order in the plane.

It should be possible to apply some (moderate) upsampling strategies to receive full 2nd order... Angelo Farina seems to be being able to think above 4 harmonics and so you two will (probably) succeed. O:-)


Just: "... to be able to..."  Sorry!

St.

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