16-8
DSP Functions
The DSP Functions
One-pole Lowpass Filter (LOPASS)
Frequencies below the cutoff frequency are unaffected by this Þlter. At the cutoff frequency, the
signal is attenuated 3 dB. ThereÕs a rolloff of 6 dB per octave above the cutoff frequencyÑthat is,
the signal is attenuated 6 dB with each octave above the cutoff. The resonanceÑthe amount of
cut or boost at the cutoff frequencyÑis Þxed at -3dB. When the cutoff frequency is well below
the lowest-frequency partials of a sound, lowering the cutoff further will not affect the timbre of
the sound, but will reduce its overall amplitude.
EditProg:F1|FRQ(LOPASS)||||<>Layer:1/1||
Coarse:
C|4|262|Hz||
|Src1||:OFF||||||||||
Fine||:0ct||||||||||Depth|:0ct||||||||||
||||||||||||||||||||Src2||:OFF||||||||||
KeyTrk:0ct/key||||||DptCtl:OFF||||||||||
VelTrk:0ct||||||||||MinDpt:0ct||||||||||
Pad|||:0dB||||||||||MaxDpt:0ct||||||||||
<more||F1|FRQ|F2|||||F3|||||F4|AMP|more>
Parameter Range of Values
Coarse Adjust C 0 16 Hz to G 10 25088 Hz
Fine Adjust ± 100 cents
Key Tracking ± 250 cents per key
Velocity Tracking ± 10800 cents
Pad 0, 6, 12, 18 dB
Source 1 Control Source list
Source 1 Depth ± 10800 cents
Source 2 Control Source list
Source 2 Depth Control Control Source list
Minimum Depth, Source 2 ± 10800 cents
Maximum Depth, Source 2 ± 10800 cents
-60
-50
-40
-30
-20
-10
0
10 100 1000 10000 100000
C5 C10
Frequency in Hertz
Amplitude in dB
Cutoff Frequency
from C5 to C10