Le 12/01/2025 à 19:36, Jerry Lee Marcel
via groups.io a écrit?:
EDIT:wo omnidirectional capsules oriented in whatever
direction always result in omnidirectionality.
Two omnidirectional capsules may result in some directivity, but
polarity and level must be adjusted.
What
you suggest would be two cardioid mics placed back-to-back and
wired out-of-phase.
Could be an interesting approach I guess.
What do you think?
A figure-8 microphone has the same directivity index as a cardioid
(4.8dB), so both placed in diffused field receive the same amount
of non-desired signal.
A hypercardioid mic has a directivity index of 6dB, and rejection
is optimal at about 110° on both sides. Sounds from the back are
attenuated only by 6dB.
It is theoretically the most effective at rejecting ambient noise.
However, if the main noise source is at the rear it may be less
efficient than a simple cardioid.
