Roland System-8 Reference Manual page 4

Panel Descriptions
2 LFO
Here you can create cyclic change (modulation) in the sound by applying vibrato (pitch modulation) or tremolo (volume modulation).
Controller Value
Variation 1
[VARIATION] knob
Variation 2
(only for MODEL:
SYSTEM-8)
Variation 3
R
S
Wave knob
T
(only for MODEL:
U
SYSTEM-8)
W
RND
[PITCH] knob -128–0–+127
[FADE TIME] knob 0–255
[FILTER] knob -128–0–+127
[KEY TRIG]
button ON (lit), OFF (unlit)
[TRIG ENV] button
ON (lit), OFF (unlit)
[RATE] knob 0–255
[AMP] knob -128–0–+127
3 OSC 1, OSC 2
Here you can select the waveform that determines the character of the sound, and specify its pitch. The SYSTEM-8 has three oscillators (OSC 1,
OSC 2, and OSC 3/SUB OSC).
4
Controller Value
[VARIATION]
knob
Variation 1
(only for MODEL:
SYSTEM-8)
Variation 2
T
U
Wave knob
S
(only for MODEL:
T
T
SYSTEM-8)
U
U
S S
Octave (feet) knob
64, 32, 16, 8, 4, 2
[COLOR] knob 0–255
4
Explanation
Selects the variation of the LFO section.
Variation 1 (Single LFO)
A standard LFO.
Variation 2 (Dual LFO)
This LFO is created by using a separate second LFO to apply frequency modulation
to the same LFO waveform as Variation 1. The second LFO is a sine wave five octaves
lower.
Variation 3 (Resonanced Pulse LFO)
This is a pulse waveform with resonance.
The waveform knob selects the frequency of the resonance.
Variation 1 Variation 2
Sine wave (SIN) Sine wave (SIN x 2)
Triangle wave (TRI) Triangle wave (TRI x 2)
Sawtooth wave (SAW) Sawtooth wave (SAW x 2)
Square wave (SQR) Square wave (SQR x 2)
Sample and Hold (S&H) Sample and Hold (S&H x 2) TYPE 5
Random wave (RND) Random wave (RND x 2)
Allows the LFO to modulate the pitch of the partial, producing a vibrato effect.
Specifies the time from when the tone sounds until the LFO reaches its maximum
amplitude.
Allows the LFO to modulate the FILTER CUTOFF (cutoff frequency),
Specifies whether the LFO waveform is synchronized to start the moment you press a
key (on) or is not synchronized (off ).
Causes the envelope to start repeatedly at the LFO cycle (on).
Determines the speed of the LFO modulation.
The indicator blinks at the speed (rate) of the LFO modulation.
This knob is a GRF (GRIFFER) knob which allows high-precision adjustments.
Allows the LFO to modulate the AMP LEVEL (volume), producing a tremolo effect.
Explanation
Select the variation of the OSC 1 and OSC 2 sections.
This is the basic oscillator waveform.
This is a distinctive oscillator waveform.
Variation 1 Variation 2
Sawtooth wave (SAW) Noise Saw (NOISESAW)
Square wave (SQR) Logic Operation (LOGIC)
Triangle wave (TRI) FM (FM)
Sawtooth wave2 (SAW2) FM+SYNC (FM SYNC)
Square wave2 (SQR2) Vowel (VOWEL)
Triangle wave2 (TRI2) CB (COWBELL)
Specifies the octave of the oscillator.
Adjusts the tone.
The result depends on the waveform.
Variation 3
TYPE 1
TYPE 2
TYPE 3
TYPE 4
TYPE 6