Frequency Response; Proximity Effect - Samson DK705 Bedienungsanleitung

Polar Pick-up Pattern
Every microphone has a characteristic polar pattern that determines
how well it accepts or rejects signal coming from various areas around
the microphone. For example, omnidirectional mics accept all signals
regardless of wherever those signals originate (in front of the mic,
behind it, to the side, etc.). In contrast, directional cardioid mics are
specifically designed to accept mostly signal coming from directly
in front, and to reject signal coming from behind or from the side.
Cardioid Pattern
The Q71 and Q72 have a supercardioid pattern, which is a slight
variation of the standard cardioid pattern with a slightly tighter pick-
up pattern that helps increase the side-to-side rejection giving better
isolation from drum to drum. For this reason, the Q71 and Q72 excel
in environments where there is a good deal of unwanted ambient
sound (like a live sound stage) as they deliver those signals originating
directly in front of the mic capsule itself while rejecting those that
originate from behind.
Supercardioid Pattern
In addition, the polar pattern also determines how prone a particular
mic is to inducing feedback. Feedback is that nasty howling sound
that occurs when a mic is placed too close to a loudspeaker. The signal from the loudspeaker
is fed into the mic, then into the loudspeaker, then into the mic, over and over again until an
oscillating tone is generated. Because the supercardioid pattern utilized by the Q71 and Q72
is so good at rejecting signal not coming from directly in front of the mic, you'll find that using
these mics will greatly minimize feedback problems.

Frequency Response

Each of the Q71 and Q72 microphone has been designed with a frequency response that
has been tailored for the drums it will be placed on. The response is created by the careful
consideration of the microphone element and the design of the capsule porting. You can see the
individual frequency response of each mic included in the specification pages.

Proximity Effect

Unidirectional or cardioid microphones,
exhibit a phenomenon known as "proximity
effect." Very simply put, proximity effect is a
resulting change in the frequency response
of a microphone based on the position
of the mic capsule relative to the sound
source. Due to the result of the proximity
effect, slight adjustments of the microphone
position and angle can make a big difference
in sound. Specifically, when you point a cardioid mic directly at the sound source (on axis) you
will get the best frequency response, however when you start pointing the microphone slightly
away (off axis) you will notice the low frequency response dropping off and the microphone will
start to sound thinner. Knowing that the bass will decrease as you change the mic angle can be
a big help if you are getting a "boomy" sound from your drum.