"Jim Lesurf"

The point is there is a time delay required for a sound wave to propagate
from one sensor element to the other. That leads to a pressure difference
given a finite wavelength, even for a plane wave which has the same peak
amplitude in both locations.

** Here comes the "though experiment" - just as I fearded,


In effect, it is just like using a phased array in RF to sculpt a required
pattern of directionality.


** Utter ******** !!!!

Wot a fool.