On 2011-07-24, Fons Adriaensen wrote:
In a normal SF mic the effect could become significant if the distance between the capsules is a non-trivial fraction of the source distance AND of the wavelength, so not really at low F.
Does that really matter, though? I mean, by definition XYZ contain particle velocity (or time integrated pressure gradient, whichever you prefer). With a near source, that already ought to show the proximity effect as long as the mic does anything remotely ambisonic. How it was built doesn't really seem to affect the results at this level.
So looked at from another angle, most of the phase differences that Robert pointed to, whether because of the directivity of the capsules or because of the capsule spacing plus the following corrective filter, actually ought to be there. Otherwise the mic wouldn't be measuring velocity as at should. So in fact the problem is squarely in that the higher order components can't be fully suppressed, but fold into the mix.
-- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-50-5756111, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
