Kurzweil K2500 - PERFORMANCE GUIDE REV F PART NUMBER 910251 CHAP 14 - Equalization (EQ) Functions; Parametric Equalizer (PARAMETRIC EQ)

DSP Functions
Equalization (EQ)
14-22
Equalization (EQ)
Equalization is a specialized filtering process that lets you boost or cut the amplitude of a
specified range of frequencies.
PARAMETRIC EQ
MID-RANGE PARAMETRIC EQ
BASS TONE CONTROL
TREBLE TONE CONTROL
STEEP BASS TONE CONTROL
Parametric Equalizer (PARAMETRIC EQ)
This function has three interacting parameters, each with its own control input page: center
frequency, width, and amplitude. The center frequency is the center of the range of frequencies
that will be boosted or cut by the amplitude setting. The width is the entire range of frequencies
-70
-60
-50
-40
-30
-20
-10
0
10 100 1000 10000 100000
Frequency in Hertz
Amplitude in dB
Center frequency = C 7;
width = 2 octaves;
separation at -2, 0, +2 octaves
-2
0
+2
Twin Peaks
Separation
Bandpass Filter:
-70
-60
-50
-40
-30
-20
-10
0
10 100 1000 10000 100000
Frequency in Hertz
Amplitude in dB
Center frequency = C 7;
separation = 1 octave;
width at .5, 1, 2 octaves
2
.5
Twin Peaks
Width
Bandpass Filter: