<<For single MS, I use SpectraFoo to compute the delay between between the M
and S microphones ad try to adjust their positions so that is 1 or zero
samples.>>
I think delay correction for non-coincidence will be correct in only one
dimension, & thus making things worse on the opposite side.
<<Perhaps that is overkill, and maybe say an overlap of 0.5cm can be achieved
for taping overlap (giving a coincidence error of .25cm either side of the S
capsule) would not be too bad? A full wavelength at 10KHz is about 3.4cm but I
would think even a quarter wavelength non-coincidence is going to give some
significant effects (.85cm)? >>
Whether it's overkill is part of the philosophical debate about coincident vs
near coincident arrays. In my opinion phase coherence is much more critical in
the mid & lower range, while a bit of nulling in the highs, which is only the
upper harmonics for just about everything except bats is (subjectively)
perfectly acceptable.
SF
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