Step Filter; Auto Wah; Humanizer; Phaser - Roland MC-909 Owner's Manual

Multi-Effects List

07: STEP FILTER

This is a filter whose cutoff frequency can be modulated in steps.
You can specify the pattern by which the cutoff frequency will
change.
fig.MFX07
L in Step Filter
R in
Step Filter
Parameter Value
Rate 0.05–10.00
Hz, note
Attack #1 0–127
Filter Type LPF, BPF,
HPF,
NOTCH
Filter Slope -12, -24,
-36 dB
Filter Reso- 0–127
nance #2
Filter Gain 0– +12 dB
Level 0– 127
Beat 0–127
1-1–4-4

08: AUTO WAH

A filter that turns on and off to create a cyclical change in timbre.
fig.MFX08
L in
Auto Wah
R in
Parameter Value
Filter Type LPF, BPF
Rate #2 0.05–
10.00 Hz,
note
Depth 0–127
Sens 0–127
Manual #1 0–127
Peak 0–127
Level 0–127
94
L out
R out
Description
Rate of modulation
Rate at which the cutoff frequency
will change between beats
Filter type
Frequency range that will pass
through each filter
LPF: frequencies below the cutoff
BPF: frequencies in the region of
the cutoff
HPF: frequencies above the cutoff
NOTCH: frequencies other than the
region of the cutoff
Amount of attenuation per octave
-12 dB: gentle
-24 dB: steep
-36 dB: extremely steep
Filter resonance level
Increasing this value will empha-
size the region near the cutoff fre-
quency.
Amount of boost for the filter output
Output level
Cutoff frequency for each 16th note of
a 4/4 measure
* This can be set using the sliders of
the part mixer.
L out
R out
Description
Type of filter
LPF: The wah effect is applied
over a wide frequency range.
BPF: The wah effect is applied
over a narrow frequency range
Frequency of modulation
Depth of modulation
Adjusts the sensitivity with which
the filter is controlled.
Adjusts the center frequency at
which the effect is applied.
Adjusts the amount of the wah ef-
fect that occurs in the range of the
center frequency.
Set a higher value for Q to narrow
the range to be affected.
Output level

09: HUMANIZER

Adds a vowel character to the sound, making it similar to a human
voice.
fig.MFX09
L in
Overdrive
R in
Parameter Value
Drive Sw OFF, ON
Drive 0–127
Vowel1 #1 a, e, i, o, u
Vowel2 #2 a, e, i, o, u
Rate 0.05–10.00
Hz, note
Depth 0–127
Input Sync OFF, ON
Sw
Input Sync 0–127
Threshold
Manual 0–100
Low Gain -15– +15 dB
High Gain -15– +15 dB
Pan L64–63R
Level 0–127

10: PHASER

Adds a phase-shifted sound to the original sound, producing a
swirling modulation that creates spaciousness and depth.
fig.MFX10
L in
Phaser
R in
Resonance
Parameter Value
Manual #1 0–127
Rate #2 0.05–10.00
Hz
Depth 0–127
Resonance 0–127
Mix 0–127
Pan L64–63R
Level 0–127
Pan L
2-Band
Formant
EQ
Pan R
Description
Turns Drive on/off.
Degree of distortion
Also changes the volume.
Selects the vowel.
Frequency at which the two vowels
switch
Effect depth
Determines whether the LFO for
switching the vowels is reset by the
input signal (ON) or not (OFF).
Volume level at which reset is ap-
plied
Point at which Vowel 1/2 switch
49 or less: Vowel 1 will have a
longer duration.
50: Vowel 1 and 2 will be of equal
duration.
51 or more: Vowel 2 will have a
longer duration.
Gain of the low frequency range
Gain of the high frequency range
Stereo location of the output
Output level
Pan L
Mix
Pan R
Description
Adjusts the basic frequency at
which the sound will be modulated.
Frequency of modulation
Depth of modulation
Amount of feedback
Level of the phase-shifted sound
Stereo location of the PHASER out-
put
Output Level
L out
R out
L out
R out