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Space directional microphones include the cardioid, hypercardioid and
bidirectional (figure of eight) pickup patterns. While similar to spaced
omni techniques, directional mics require even more care in placement than
spaced omni's. Audience response, reverberation signature and other off axis
sound will suffer from significant coloration. Therefore their placement and
orientation are more critical than the omnidirectional pattern.
Of all the
directional microphones available to use for this method, the bidirectional
ones perform the best. They have better reach than the hypercardioid or
cardioid mics and due to the rear facing lobe being out of phase, but equal
in amplitude output, the reverberant signature and audience response will
have a more natural characteristic.
As a rule, I advise against the use of
spaced directional microphones for any application, except, on stage facing
into the audience, for audience response.
Back to Spaced Techniques
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