DSP Functions
Equalization (EQ)
14-23
that will be affected by the amplitude setting. For the K2500, the width is defined by imagining
an amplitude curve with a level (in dB) of -infinity (minus infinity) at the center frequency, then
measuring the distance (in octaves) between the points on the curve where the amplitude is
attenuated by 3dB. See the diagram below.
0
2
4
6
8
10
12
14
16
10 100 1000 10000 100000
Frequency in Hertz
Amplitude in dB
Gain = 12 dB;
width = 2 octaves;
cutoff frequency from C 4 to C 10
C 4
C 10
Amplitude in dB
Frequency in Hertz
10
100
1K
10K
-10
0
-20
-30
-40
-50
-
∞
3 dB attenuation
Width
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