58 SPX2000—Owner’s Manual
Dynamic Filter (PRESET bank)
This effect uses the input signal or MIDI messages to vary the frequency band of a filter, creating modulation in a specific fre-
quency region.
Each aspect of the sound is controlled by the following effect parameters.
Modulation signal: SOURCE
Filter: SENSE, TYPE, OFFSET, RESO., DIR., DECAY
Output level: OUT LVL, MIX BAL.
Parameter details
■Basic parameters
■Fine parameters
Effect list
The following tables show the default parameter values for the effect belonging to the Dynamic Filter type (PRESET bank).
■Basic parameters
■Fine parameters
Parameter name Range Explanation
SOURCE INPUT, MIDI
Source of the modulating signal. If you select INPUT, the effect sound will change according to the
input signal. If you select MIDI, the modulated sound will change according to the received MIDI
messages (velocity). If you want the effect to vary according to your keyboard performance, select
MIDI.
SENSE 0—100 The sensitivity to SOURCE. Higher settings of this value will cause the filter frequency to follow the
SOURCE more faithfully. With lower settings, the filter frequency will follow more loosely.
TYPE LPF, HPF, BPF
Type of filter. Choose from LPF (Low Pass Filter), HPF (High Pass Filter), and BPF (Band Pass Filter).
OFFSET 0—100
Offset value for the filter frequency. This affects the frequency of the filter when a control signal is
not being received. Lowering this value if DIR. is UP (or raising it if DIR. is DOWN) will extend
the variable range of the filter, producing a greater width of modulation.
RESO. 0—20 This is the resonance. Higher values will sharpen the frequency response curve of the filter.
Parameter name Range Explanation
MIX BAL. 0—100% Balance between the original sound and effect sound. At a setting of 0% only the original sound
will be output; at a setting of 100% only the effect sound will be output.
OUT LVL 0—100% Output level of the effect sound.
Decrease this value if you want to lower the output. At a setting of 0% there will be no output.
DIR. UP, DOWN Direction in which the filter will move in response to the SOURCE signal.
DECAY*a
*a. The range of this parameter depends on the sampling frequency at which the SPX2000 is operating.
44.1 kHz: 6 ms—46.0 s
48 kHz: 5 ms—42.3 s
88.2 kHz: 3 ms—23.0 s
96 kHz: 3 ms—21.1 s
Decay time of the filter. This indicates the time from when the SOURCE signal is received and the
filter moves until it returns to its original position. Higher settings of this parameter will make the
filter return more slowly.
No. Effect name SOURCE SENSE TYPE OFFSET RESO.
78 DYNA FILTER INPUT 48 BPF 4 5
No. Effect name MIX BAL. OUT LVL DIR. DECAY*a
*a. The default value of this parameter depends on the sampling frequency at which
the SPX2000 is operating. The value shown in the table is for fs = 96 kHz.
78 DYNA FILTER 100% 100% UP 35 ms