Roland System-8 Reference Manual page 6

Panel Descriptions
6 PITCH
Here you can create time-varying change (envelope) for pitch.
Controller Value
[ENV] knob -128–0–+127
[A] slider
0–255
[D] slider
7 FILTER
These settings determine the brightness and thickness of the sound. Here you can also specify the time-varying change (envelope) for the filter.
Controller Value
[VARIATION]
knob
LPF/HPF (Variation 1)
(only for MODEL:
SBF (Variation 2)
SYSTEM-8)
(Variation 3)
[CUTOFF]
knob 0–255
(Variation 1)
LPF-24dB, LPF-18dB,
LPF-12dB, HPF-12dB,
HPF-18dB, HPF-24dB
Filter type knob
(only for MODEL:
SYSTEM-8)
(Variation 2)
SBF1–SBF6
(Variation 3)
LPF-24dB, LPF-18dB,
LPF-12dB
[RESO] knob 0–255
[ENV]
knob -128–0–+127
[KEY] knob -128–0–+127
[VELOCITY SENS]
0–255
knob
[HPF CUTOFF]
knob 0–255
6
Explanation
If this knob is turned toward the right, the pitch initially becomes higher and then
returns to the pitch of the key you pressed.
If this knob is turned toward the left, the pitch initially becomes lower and then
returns to the pitch of the key you pressed.
These sliders operate similarly to the
the pitch rather than the volume).
Explanation
Selects the variation of the FILTER section.
Low pass filter (LPF), High pass filter (HPF)
Side band filter (SBF)
This is a SYSTEM-1 type low pass filter (LPF).
Specifies the cutoff frequency of the filter.
This knob is a GRF (GRIFFER) knob which allows high-precision adjustments.
Selects the slope of the filter.
Low pass filter (LPF), High pass filter (HPF)
LPF: -24dB, -18dB, -12dB
Volume
-18 dB
-24 dB
-12 dB
Frequency
HPF: -12dB, -18dB, -24dB
Volume
-18 dB
-24 dB
-12 dB
Frequency
Side band filter (SBF)
You can use the [CUTOFF] knob to adjust the band interval.
You can also use the filter type knob to select the range of the band interval.
SBF1–3: Low range, Mid range, High range with original sound
SBF4–6: High range, Mid range, Low range without original sound
You can use the resonance knob to adjust the band width.
This is a SYSTEM-1 type low pass filter (LPF)
Although the knob moves through six steps, this setting has three values. Even if you
move the knob to the fourth or subsequent step, the value is LPF-12 dB.
Resonance boosts the sound in the region of the filter's cutoff frequency.
Higher settings produce stronger emphasis, creating a distinctively
like" sound.
This knob specifies the depth and direction of the cutoff frequency change produced
by the [A], [D], [S], and [R] sliders.
If the knob is turned toward the right, the cutoff frequency moves in the upward
direction.
If the knob is turned toward the left, the cutoff frequency moves in the downward
direction.
Allows the filter cutoff frequency to vary according to the key that you play.
If the knob is turned toward the right, the cutoff frequency becomes higher as you
play higher notes.
If the knob is turned toward the left, the cutoff frequency becomes lower as you play
lower notes.
Adjusts the sensitivity by which the key velocity (playing dynamics) varies the depth
of the filter envelope.
Specifies the cutoff frequency of the high-pass filter. Frequency components below
the cutoff frequency are cut.
[A] [D] AMP
sliders of the section (they affect
8
"synthesizer-