Kurzweil K2500RS, Musician'S Manual

Page: 261 / 530

DSP Functions
Filters
14-9
ADJUST -12 to +24 dB
KEY TRACKING
±
2.00 dB per key
VELOCITY TRACKING
±
30 dB
SOURCE 1 Control Source list
SOURCE 1 DEPTH
±
30 dB
SOURCE 2 Control Source list
SOURCE 2 DEPTH CONTROL Control Source list
MINIMUM DEPTH, SOURCE 2
±
30 dB
MAXIMUM DEPTH, SOURCE 2
±
30 dB
Two-pole Lowpass Filter, -6 dB Resonance (LOPAS2)
Using this Þlter is the same as using two one-pole lowpass Þlters in successive algorithm
blocks. Since its resonance is Þxed at -6 dB, itÕs also the same as using 2POLE LOWPASS with
the resonance set to -6 dB. YouÕd use this Þlter when you want a 12 dB per octave rolloff but
donÕt need to set a resonance level. This would leave you free to use another DSP function in
the algorithm, since itÕs a one-stage function.
-80
-70
-60
-50
-40
-30
-20
-10
0
10 100 1000 10000 100000
Frequency in Hertz
Resonance = 0 dB;
cutoff frequency
from C 4 to C 10
Amplitude in dB
C 4 C 10