Filter (9 Types); Enhancer; Isolator; Low Boost - Roland MC-909 Owner's Manual

03: ENHANCER

Controls the overtone structure of the high frequencies, adding
sparkle and brightness to the sound.
fig.MFX03
L in Enhancer
Mix
R in
Enhancer
Mix
Parameter Value Description
Sens #1 0–127 Sensitivity of the enhancer
Mixl #2 0–127 Level of the overtones generated by
the enhancer
Low Gain -15– +15 dB Gain of the low frequency range of
frequencies
High Gain -15– +15 dB Gain of the high frequency range of
frequencies
Level 0–127 Output level

04: ISOLATOR

This is an equalizer that radically cuts the volume of selected
frequencies, allowing you to create special effects cutting the volume
in various ranges.
fig.MFX04
L in
Isolator

Low Boost

R in
Isolator Low Boost
Parameter Value Description
Boost/Cut -60– +4 dB These boost and cut each of the
High High, Middle, and Low frequency
Boost/Cut ranges.
Middle #1
Boost/Cut
Low #2
AntiPhase OFF, ON Settings of the Anti-Phase function
Middle Sw for the Middle frequency ranges.
AntiPhase 0–127 Adjusts the level settings for the
Middle Middle frequency ranges.
Level
Anti Phase OFF, ON Settings of the Anti-Phase function
Low Sw for the Middle frequency ranges
Anti Phase 0–127
Low Level
Low Boost OFF, ON Turns Low Booster on/off.
Sw
Low Boost 0–127 Increasing this value gives you a
Level heavier low end.
* Depending on the Isolator and
Level 0–127 Output level
2-Band
L out
EQ
2-Band
R out
EQ
L out
R out
At -60 dB, the sound becomes in-
audible. 0 dB is equivalent to the
input level of the sound.
When turned on, a stereo copy of
the sound is phase-inverted and
added to the signal.
Adjusting this level for certain
frequencies allows you to lend
emphasis to specific elements
within a sound. (This is effective
only for stereo source.)
The parameters are the same as
for the Middle frequency ranges.
This emphasizes the bottom fre-
quencies to create a heavy bass
sound.
filter settings, this effect may be
hard to hear.
05: LOW BOOST
Boosts the volume of the lower range, creating powerful lows.
fig.MFX05
L in Low Boost 2-Band EQ
R in
Low Boost
2-Band EQ
Parameter Value
Boost Fre- 50–125 Hz
quency #1
Boost Gain #2 0–12 dB
Boost Width WIDE,
MID, NAR-
ROW
Low Gain -15– +15 dB
High Gain -15– +15 dB
Level 0–127

06: SUPER FILTER

This is a filter with an extremely sharp slope. The cutoff frequency
can be varied cyclically.
fig.MFX06
L in
Super Filter
R in
Super Filter
Parameter Value Description
Filter Type LPF, BPF, Filter type
HPF,
NOTCH
Filter Slope -12, -24, Amount of attenuation per octave
-36 dB
Filter Cut- 0–127 Cutoff frequency of the filter
off #1
Filter Reso- 0–127 Filter resonance level
nance #2
Filter Gain 0–+12 dB Amount of boost for the filter output
Modula- OFF,ON On/off switch for cyclic change
tion Sw
Modula- TRI, SQU, How the cutoff frequency will be
tion Wave SIN, modulated
SAW1,
SAW2
Rate 0.05–10.0 Rate of modulation
Hz, note
Depth 0–127 Depth of modulation
Attack 0–127 Speed at which the cutoff frequency
will change
Level 0–127 Output level
Multi-Effects List
L out
R out
Description
Center frequency at which the
lower range will be boosted
Amount by which the lower
range will be boosted
Width of the lower range that
will be boosted
Gain of the low frequency range
Gain of the high frequency range
Output level
L out
R out
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
-36 dB: extremely steep
-24 dB: steep -12 dB: gentle
Increasing this value will raise the
cutoff frequency.
Increasing this value will empha-
size the region near the cutoff fre-
quency.
TRI: triangle wave
SQR: square wave
SIN: sine wave
SAW1: sawtooth wave (upward)
SAW2: sawtooth wave (down-
ward)
This is effective if Modulation
Wave is SQR, SAW1, or SAW2.
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