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Why do you
use a parabolic microphone as opposed to the conventional microphone
that comes with the recording device?
The parabolic microphone is a highly directional long range device
that has the ability to accumulate a lot of sound from the direction
in which it is pointed, and to then reflect it back onto a microphone
which is mounted in a focal point in the reflector. Because of
this characteristic, it has the ability to reach great distances
and to minimize sounds from other directions. The conventional
microphone that comes with a recorder works in reverse
it hears everything and rejects nothing. As a result it gets
a mish mash of sound and is only effective, on any individual
sound, for a range of several feet. The exception, of course,
is loud, overpowering sound such as aircraft, heavy traffic etc.
How far will
the parabolic microphone reach?
This depends on factors such as: The amount of sound from the
source. The atmospheric conditions at the time and the amount
of extraneous noise. Successful recordings of voice and sound
have been made with the EPM at distances of 1/2 to 3/4 of a mile
away.
If there
are a lot of noises, how do you record only the one that you
want?
Here again, the parabolic microphone solves this problem with
its extremely directional characteristic, particularly in the
higher frequency ranges. By pointing the parabolic microphone
at the desired subject, the sound of the subject is then in focus
with the microphone in the parabola. This sound is amplified
while all other subject's sounds are minimized. The parabolic
microphone works on the principal that the higher the frequency,
the more power it has to reject sounds. It must be understood
that if another sound is directly behind, or in line with, the
desired subject, this principal will not work properly because
both sounds will be simultaneously amplified. To avoid this,
try repositioning yourself until you hear the desired effects.
Do you use
earphones when recording?
Earphones are recommended as they will determine what your parabolic
microphone is receiving. Often a subject who is vocalizing cannot
be seen, but can be heard distinctly. Scanning with the parabolic
microphone, the maximum sound can be determined. This often happens
in dense foliage, or at night.
For Further
Advice
If you are having difficulties, please contact us first before
sending the EPM to us for service. We find most difficulties
can be solved over the phone saving time and expense of
transportation.
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