16-12
DSP Functions
The DSP Functions
This combines 2POLE LOWPASS and LOPAS2 in one three-stage function. The parameters on
the F1 FRQ control-input page affect the cutoff frequencies of both Þlters. The parameters on the
F2 RES page affect the resonance of 2POLE LOWPASS. The parameters on the F3 SEP page shift
the cutoff frequency of LOPAS2, creating a separation between the cutoff frequencies of the two
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
10 100 1000 10000 100000
Frequency in Hertz
Amplitude in dB
Cutoff frequency = C 5;
separation = 0;
resonance from -12 to 24 dB
24
-12
4-Pole Lowpass Filter:
Resonance
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
10 100 1000 10000 100000
Frequency in Hertz
Amplitude in dB
Cutoff frequency = C 7;
resonance = 12 dB;
separation from -2 to +2
-2
+2
4-Pole Lowpass Filter:
Separation in Octaves