On 11/14/2013 04:42 PM, umashankar manthravadi wrote:
if you feed the figure of eights to a mixer you can actually generate
a better Omni.
now i'm confused.
fig8s can never be combined to an omni.
but if the microphone has in fact four cardioids, then you could combine
them two two fig8s and an omni.
but i don't see how you get those four capsule signals out of the mike
through five pins in any sane way (where sane == balanced).
can you explain in more detail?
Or, if the circuit is made of four cardioids each to
one pin, the circuit is still a pair of figure of eights, but all
four pins summed is a good Omni. I built my Velan, a six cardioid
native B format mic, where all six capsules contribute to the Omni.
umashankar
Date: Thu, 14 Nov 2013 16:28:12 +0100 From:
netti...@stackingdwarves.net To: sursound@music.vt.edu Subject: Re:
[Sursound] New native B-Format microphone!
On 11/14/2013 04:08 PM, umashankar manthravadi wrote:
one ground pin, two figure of eights with one or both receiving
phantom voltage, and two pins, one from each figure of eight, out
of phase for the Omni.
you mean the omni will be a phantom circuit? oh my god, i only hope
he can tame the demons he has summoned.
after reading a few of jörg wuttke's papers on what can go wrong in
even a simple phantom _power_ circuit, this remark makes me very,
very afraid :)
unless i'm very much mistaken, the achievable common-mode rejection
now also depends on the relative twist between two pairs, and the
problems with impedance matching between hot and cold have
increased by a factor of two. where i live (in evil places with
thyristor dimmers and long analog multicores), that's scary.
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