Isolator; Low Boost; Super Filter - Roland Groovebox MC-707 Reference Manual

MFX/IFX Parameters

03 Isolator

This is an equalizer which cuts the volume greatly, allowing you to add
a special effect to the sound by cutting the volume in varying ranges.
L in
Isolator Isolator
R in
Isolator Isolator
Parameter Value
Boost/Cut Low -60–+4 [dB]
Boost/Cut Mid -60–+4 [dB]
Boost/Cut High -60–+4 [dB]
Anti Phase Low Sw OFF, ON
Anti Phase Low Level 0–127
Anti Phase Mid Sw OFF, ON
Anti Phase Mid Level 0–127
Low Boost Sw OFF, ON
Low Boost Level 0–127
Level 0–127

04 Low Boost

Boosts the volume of the lower range, creating powerful lows.
L in
Low Boost Low Boost
R in
Low Boost Low Boost
Parameter Value
Boost
50, 56, 63, 71, 80, 90,
100, 112, 125 [Hz]
Frequency
Boost Gain 0–+12 [dB]
Boost Width WIDE, MID, NARROW Width of the lower range that will be boosted
Low Gain -15–+15 [dB]
High Gain -15–+15 [dB]
Level 0–127
86
L out
Low Boost Low Boost
R out
Low Boost Low Boost
Explanation
These boost and cut each of the High, Middle,
and Low frequency ranges.
At -60 dB, the sound becomes inaudible. 0 dB
is equivalent to the input level of the sound.
Turns the Anti-Phase function on and off for
the Low frequency ranges.
When turned on, the counter-channel of
stereo sound is inverted and added to the
signal.
Level of the Anti-Phase function for the Low
frequency ranges.
Adjusting this level for certain frequencies
allows you to lend emphasis to specific parts.
(This is effective only for stereo source.)
Settings of the Anti-Phase function for the
Middle frequency ranges.
The parameters are the same as for the Low
frequency ranges.
Turns Low Booster on/off.
This emphasizes the bottom to create a heavy
bass sound.
Increasing this value gives you a heavier low
end.
Depending on the Isolator and filter settings
this effect may be hard to distinguish.
Output Level
L out
2-Band EQ 2-Band EQ
R out
2-Band EQ 2-Band EQ
Explanation
Center frequency at which the lower range
will be boosted
Center frequency at which the lower range
will be boosted
Gain of the low range
Gain of the high range
Output Level

05 Super Filter

This is a filter with an extremely sharp slope. The cutoff frequency can
be varied cyclically.
L in
Super Filter Super Filter
R in
Super Filter Super Filter
Parameter Value
Filter Type LPF, BPF, HPF, NOTCH
Filter Slope -12, -24, -36 [dB]
Filter Cutoff 0–127
Filter
0–100
Resonance
Filter Gain 0–+12 [dB]
Modulation Sw OFF, ON
TRI, SQR, SIN, SAW1,
SAW2
Modulation Wave
SAW1
Rate OFF, ON
(sync sw)
Rate 0.05–10.00 [Hz]
(Hz)
Note
Rate
(note)
& "Note" (p. 120)
Depth 0–127
Attack 0–127
Level 0–127
L out
R out
Explanation
Type of filter
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: -24 dB: -36 dB:
Gentle, Steep,
Extremely steep
Cutoff frequency of the filter
Increasing this value will raise the cutoff
frequency.
Filter resonance level
Increasing this value will emphasize the
region near the cutoff frequency.
Amount of boost for the filter output
On/off switch for cyclic change
How the cutoff frequency will be modulated
TRI: Triangle wave
SQR: Square wave
SIN:
Sine wave
SAW1:
Sawtooth wave (upward)
SAW2: Sawtooth wave (downward)
SAW2
If this is ON, the rate synchronizes with the
tempo of the rhythm.
& "TEMPO" (p. 52)
Frequency of modulation
Depth of modulation
Speed at which the cutoff frequency will
change This is effective if Modulation Wave is
SQR, SAW1, or SAW2.
Output Level