Angle Of Incidence - AKG D 880M Bedienungsanleitung

3.3 Angle of
Fig. 8: Typical
3.4 Feedback
Fig. 9: Microphone
placement for maxi-
mum gain before
Refer to fig. 9.
18
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3 Using Your Microphone
Incidence
microphone
position.
feedback.
ter fader to reduce the volume and stop the howling.
To increase usable gain before feedback, the microphone has a
supercardioid polar pattern. This means that the microphone is
most sensitive to sounds arriving from in front of it (your voice)
while picking up much less of sounds arriving from the sides or
rear (from monitor speakers for instance).main ("FOH") speak-
ers in front of the microphones (along the front edge of the
stage).
If you use monitor speakers, be sure never to point any micro-
phone directly at the monitors, or at the FOH speakers.
Feedback may also be triggered by resonances depending on
the acoustics of the room or hall. With resonances at low fre-
quencies, proximity effect may cause feedback. In this case, it
is often enough to move away from the microphone a little to
stop the feedback.
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Sing to one side of the micro-
phone or above and across
the microphone's top. This
provides a well-balanced, nat-
ural sound.
If you sing directly into the
microphone, it will not only
pick up excessive breath
noise but also overemphasize
"sss", "sh", "tch", "p", and "t"
sounds.
Feedback is the result of part
of the sound projected by a
speaker being picked up by a
microphone, fed to the ampli-
fier, and projected again by
the speaker. Above a specific
volume or "system gain" set-
ting called the feedback
threshold, the signal starts
being regenerated indefinitely,
making the sound system
howl and the sound engineer
desperately dive for the mas-