Roland SYSTEM-8 Owner's Manual page 5

OSC 1/OSC2 Variation
(VARIATION)
Variation 1 Variation 2
Sawtooth wave (SAW) Noise Saw (NOISE SAW)
Square wave (SQR) Logic (LOGIC OPERATION)
Triangle wave (TRI) FM (FM)
Sawtooth wave2 (SAW2) FM+SYNC (FM SYNC)
Square wave2 (SQR2) Vowel (VOWEL)
Triangle wave2 (TRI2) CB (COWBELL)
The FM waveform of Variation 2 applies frequency modulation using a logarithmic scale.
*
Operating the COLOR knob will change the pitch.
The FM waveform for Variations 3 and 4 applies frequency modulation using a linear scale.
*
Operating the COLOR knob will not change the pitch.
*1 FM 2 operator (Variation 3)
2
COLOR KNOB
1
1
Variation 3
SIN
FM 2 operator (FM 1: 1) 1
FM 2 operator (FM 1: 1.5) 1
FM 2 operator (FM 1: 2) 1
FM 2 operator (FM 1: 3.5) 1
FM 2 operator (FM 1: 15)
1
FM 2 operator (FM 6: 1) 6
*2 FM 5 operator(Variation 4)
3 5
COLOR KNOB
2 4
1
1
Variation 4
SIN
FM 5 operator (FM Type A) 1
FM 5 operator (FM Type B) 1
FM 5 operator (FM Type C) 1
FM 5 operator (FM Type D) 1
FM 5 operator (FM Type E) 1
FM 5 operator (FM Type F)
1
and Waveform
(WAVE)
Variation 3 (*1)
FM 2 operator (FM 1:1) FM 5 operator (FM Type A)
FM 2 operator (FM 1:1.5) FM 5 operator (FM Type B)
FM 2 operator (FM 1:2) FM 5 operator (FM Type C)
FM 2 operator (FM 1:3.5) FM 5 operator (FM Type D)
FM 2 operator (FM 1:15) FM 5 operator (FM Type E)
FM 2 operator (FM 6:1) FM 5 operator (FM Type F)
2
Explanation
SIN
1 Uses harmonic overtones to produce a waveform similar to a sawtooth wave.
1.5 Allows you to obtain a harmonic at -1 octave.
2 Uses odd-numbered harmonics to produce a waveform similar to a square wave.
3.5 Produces bell-like sounds.
Using ENV to adjust the COLOR parameter produces the attack sound of an electric
15
piano.
Using ENV to adjust the COLOR parameter produces a sound similar to electric guitar
1
feedback.
2 3 4 5
TRI SIN TRI SIN
4 11 4 15
Produce a tone generated by harmonic
1 9 4 9
overtones that differ for each type.
2 9 4 9
1 11 3.5 11 Produce a tone generated by inharmonic
overtones that differ for each type.
3 11 3.5 11
Produces a tone with formant
1 1 40 1
characteristics.
FILTER Variation
Variation 4 (*2) Variation
LPF/HPF (Variation 1)
SBF (Variation 2)
SYSTEM-1 (Variation 3)
JUPITER-8 (Variation 4)
JUNO-106 (Variation 5)
FORMANT 2 (Variation 6)
FORMANT 3 (Variation 7)
HARMONICS (Variation 8)
Parameter
TYPE
Explanation
5
and Type
(VARIATION) (TYPE)
Explanation
Low pass filter (LPF), High pass filter (HPF)
Side band filter (SBF)
This is a SYSTEM-1 type low pass filter (LPF).
The JUPITER-8's HPF and VCF (LPF)
The JUNO-106's HPF and VCF (LPF)
Formant filter (morphing between two formants)
Formant filter (morphing between three formants)
Filter that uses a feedback delay to vary the overtones
* The HPF CUTOFF knob operates as the LPF/HPF knob.
Value
Low pass filter (LPF), High pass filter (HPF)
Selects the slope of the filter.
LPF: -24dB, -18dB, -12dB
Volume
(Variation 1)
-24 dB
LPF-24dB, LPF-18dB,
LPF-12dB, HPF-12dB,
HPF-18dB, HPF-24dB
HPF: -12dB, -18dB, -24dB
Volume
-18 dB
-12 dB
Side band filter (SBF)
You can use the [CUTOFF] knob to adjust the band interval.
(Variation 2) You can also use the filter type knob to select the range of the band interval.
SBF1–SBF6 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)
(Variation 3)
Selects the slope of the filter.
LPF-24dB, LPF-18dB,
Although the knob moves through six steps, this setting has three values. Even
LPF-12dB
if you move the knob to the fourth or subsequent step, the value is LPF-12 dB.
The JUPITER-8's HPF and VCF (LPF)
(Variation 4)
Selects the slope of the filter.
LPF-24dB, LPF-18dB,
Although the knob moves through six steps, this setting has three values. Even
LPF-12dB
if you move the knob to the fourth or subsequent step, the value is LPF-12 dB.
The JUNO-106's HPF and VCF (LPF)
(Variation 5)
Selects the slope of the filter.
LPF-24dB, LPF-18dB,
Although the knob moves through six steps, this setting has three values. Even
LPF-12dB
if you move the knob to the fourth or subsequent step, the value is LPF-12 dB.
(Variation 6) Formant filter (morphing between two formants)
u-a, u-e, u-i, o-a, o-e, o-i Selects the combination of formants.
(Variation 7) Formant filter (morphing between three formants)
u-i-a, u-e-a, u-i-e, o-i-a, o-e-a, o-i-e Selects the combination of formants.
Filter that uses a feedback delay to vary the overtones
(Variation 8) Selects the length of the delay.
64FEET, 32FEET, 16FEET, 8FEET, 4FEET, This is typically set to the same octave (feet) as OSC1 or OSC2.
2FEET
You can additionally modify the FEET setting of HARM to select the desired
effect.
Screen Structure
Behavior of the [CUTOFF] knob
Cutoff
Band Interval
Cutoff
Cutoff
Cutoff
Formant
Formant
Harmonics
Explanation
-18 dB
-12 dB
Frequency
-24 dB
Frequency