Hey all;
I've got a couple mic elements that are omnidirectional. It would be better
for me if they were directional (like a cardioid or something). How do they
make the directional pattern? Is it something in the electronics, the
casing, or the element itself? Is it possible to make the omni uni?
Thanks
Following up on Rich's comments, you might want to Google
for "Shotgun Microphone" if you are looking for super
directionality and don't mind fiddling a bit. There used to
be perennial articles in Popular Electronics and the like
back in the '60s about how to build your own, but it all
boiled down to just what Rich says: A pipe with holes in
the sides. It won't be small, but it will be directional!
You used to see these on TV shows where the host
would point it at a member of the audience to pick up
one voice from a crowded room.
However, most small "unidirectional" mics are nowhere
near this directional. They are simply cardioids: The
response pattern looks like a figure 8 with the front lobe
bigger than the back. Also note that the more directional
a mic is, the more dips and peaks in its frequency response.
If you are using it for music recording, it's often better to
use an omni up close instead.
Best regards,
Bob Masta
dqatechATdaqartaDOTcom
D A Q A R T A
Data AcQuisition And Real-Time Analysis
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