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Effects List
18: Space Chorus
This effect reproduces the sound of Roland’s SDD-320 spatial
expression effects. Greater breadth is added.
19: Hexa Chorus
Hexa-chorus is a six-stage chorus which adds depth and
spaciousness to the sound. (Six chorus sounds with different
delay times are overlaid.) An equalizer is provided before
(Pre) and after (Post) the hexa chorus.
20: Analog Flanger
This effect reproduces the sound of Roland’s SBF-325 analog
flanger. You can get three different types of flanger sounds
(adding a metallic swelling sound to the source sound) and
chorus like effect.
21: BOSS Flanger
This effect features a pair of the same flanger circuits used in
the BOSS compact flangers, connected in parallel for stereo
input. This adds a particular metallic-sounding modulation to
the source sound.
Parameter Value Description
Mode 1, 2, 3, 4, 1+4,
2+4, 3+4
Selects the way in the chorus will
change.
The SDD-320 features four mode
buttons for changing the effect.
This setting determines which
buttons are to be pressed. (“1+4”
represents the condition when
Buttons 1 and 4 are pressed simul-
taneously.)
Chorus Level 0–127 Volume level of the chorus sound
Ps Low Freq 50–4000 Hz Frequency of the low range
Ps Low Gain -15– +15 dB Gain of the low range
Ps Hi Freq 2000–20000 Hz Frequency of the high range
Ps Hi Gain -15– +15 dB Gain of the high range
Parameter Value Description
Pre Dly Time 0–50.0 ms Adjusts the delay time from the di-
rect sound until the chorus sound
is heard.
Pre Dly Dev 0–50.0 ms Specifies the differences in Pre De-
lay time for each of the chorus
sounds
Rate 0.05–10.0 Hz,
note
Specifies the modulation frequen-
cy of the chorus sound.
Depth 0–127 Specifies the modulation depth of
the chorus sound.
Depth Devia-
tion
0–127 Specifies the difference in modula-
tion depth between each of the
chorus sounds.
Pan Devia-
tion
L63–63R Specifies the difference in stereo
position between each of the cho-
rus sounds.
0: All of the chorus sounds will be
panned to the center.
L20/R20: each chorus sound will
be placed in 30 degree intervals
relative to the center position.
Chorus Level 0–127 Volume level of the chorus sound
Pre Low Freq 50–4000 Hz Frequency of the low range (Pre)
Pre Low Gain -15– +15 dB Gain of the low range (Pre)
Pre Hi Freq 2000–20000 Hz Frequency of the high range (Pre)
Pre Hi Gain -15– +15 dB Gain of the high range (Pre)
Ps Low Freq 50–4000 Hz Frequency of the low range
Ps Low Gain -15– +15 dB Gain of the low range
Ps Hi Freq 2000–20000 Hz Frequency of the high range
Ps Hi Gain -15– +15 dB Gain of the high range
Parameter Value Description
Mode FL1, FL2,
FL3, CHO
Sets the effect type.
FL1: A general monaural flanger
FL2: A stereo flanger that utilizes the
stereo placement of the source sound
FL3: A cross mix flanger that provid-
ing a more intense effect
CHO: Chorus effect
Rate 0.02–5.00 Hz,
note
Sets the rate of the swelling of the
flanger sound.
Depth 0–127 Specifies the modulation depth of the
flanger sound.
Manual 0–127 Adjusts the center frequency to which
the flanger effect is applied.
Feedback 0–127 Sets the intensity of the flanger’s ef-
fect.
When the mode is set to CHO, this
setting will be ignored.
CH-R Mod
Phase
NORM, INV Sets the phase of the right channel.
This is usually set to Normal
(NORM). Setting this to Invert (INV)
inverts the phase of the modulation
(rise and fall) in the right channel.
CH-L Phase NORM, INV Sets the phase of the left and right
channels when the source sound is
mixed with the flanging sound.
NORM: Positive phase (+)
INV: negative phase (-)
CH-R Phase
Parameter Value Description
Type NORMAL,
HI-BAND
Selects the model of flanger simu-
lated.
NORMAL: Normal type (BOSS BF-
2)
HI-BAND: High-Band type (BOSS
HF-2). Setting HI-B raise the flang-
ing sound one octave above that at
the NORM.
Manual 0–127 Sets the center frequency for the ef-
fect.
Depth 0–127 Sets the depth of the swelling of the
flanger sound.
Rate 0.05–10.0 Hz,
note
Adjusts the modulation speed of
the flanger effect.
Resonance 0–127 Sets the intensity of the flanger’s ef-
fect.
* If the Feedback Mode is CROSS,
this setting is ignored.
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