Intellijel DR. OCTATURE II
Illustrated supplement
by Demonam
Index
01... 1-pole/6dB low-pass filter
02... 2-pole/12dB low-pass filter
03... 3-pole/18dB low-pass filter
04... 4-pole/24dB low-pass filter
05... Self-oscillation
06... Q - Quad mode
07... Filter sweep
08... Filter patch 1
09... Filter patch 2
10... Filter patch 3
11... 4 slopes filter
12... VC sine oscillator
13... Tracking filter
14... VC-Q filtering
15... Stereo filter
16... Signal crushing
17... Feedback loop
18... Self-cutoff modulation
19... Self-Q modulation
20... Bass drum
21... Ping !
22... Quadrature LFO
23... Quadrature LFO chart
24... Shepard tone
25... Automatic stereo panning
26... Variable slope random generator
27... With Intellijel Planar - Circular pattern patch
28... With Intellijel Planar - Circular pattern chart 1
29... With Intellijel Planar - Circular pattern chart 2
30... Space-time distortion (David G. Dixon)
1-pole/6dB low-pass filter
01
unipolar attenuator for
FM 1 input
set resonance
self-oscillate past 1
o'clock
gain unipolar attenuator
for
signal IN
set filter self-oscillation
mode
set Q response
1-pole filter out
(45° Q-sinewave)
1-pole filter out
(225° Q-sinewave)
unipolar attenuator for
Q CV input out
freq.
cutoff
out
freq.
cutoff
increase
Q
set FINE filter cutoff
frequency
bipolar attenuator for
FM 2 input
set COARSE filter cutoff
frequency
signal to be
filtered
2-pole/12dB low-pass filter
02
unipolar attenuator for
FM 1 input
set resonance
self-oscillate past 1
o'clock
gain unipolar attenuator
for
signal IN
set filter self-oscillation
mode
set Q response
2-pole filter out
(90° Q-sinewave)
2-pole filter out
(270° Q-sinewave)
unipolar attenuator for
Q CV input out
freq.
cutoff
out
freq.
cutoff
increase
Q
set FINE filter cutoff
frequency
bipolar attenuator for
FM 2 input
set COARSE filter cutoff
frequency
signal to be
filtered
unipolar attenuator for
Q CV input
3-pole/18dB low-pass filter
03
unipolar attenuator for
FM 1 input
set resonance
self-oscillate past 1
o'clock
gain unipolar attenuator
for
signal IN
set filter self-oscillation
mode
set Q response
3-pole filter out
(135° Q-sinewave)
3-pole filter out
(315° Q-sinewave)
out
freq.
cutoff
out
freq.
cutoff
increase
Q
set FINE filter cutoff
frequency
bipolar attenuator for
FM 2 input
set COARSE filter cutoff
frequency
signal to be
filtered
4-pole/24dB low-pass filter
04
unipolar attenuator for
FM 1 input
set resonance
self-oscillate past 1
o'clock
gain unipolar attenuator
for
signal IN
set filter self-oscillation
mode
set Q response
4-pole filter out
(180° Q-sinewave)
signal to be
filtered
4-pole filter out
(360° Q-sinewave)
unipolar attenuator for
Q CV input out
freq.
cutoff
out
freq.
cutoff
increase
Q
set FINE filter cutoff
frequency
bipolar attenuator for
FM 2 input
set COARSE filter cutoff
frequency
Put into self-oscillation, the DR.
OCTATURE becomes a stable, 1V/Oct
tracking LFO/VCO.
Sine VCO range : 17Hz to 22kHz (0.059s
to audiorate).
Sine LFO range : 0.017Hz to 300Hz (59s
to 0.003s).
Self-oscillation
05
make filter
self-oscillate
set COARSE sine
VCO/LFO frequency
pitch CV
VCO/LFO sine
outputs
set FINE sine VCO/LFO
frequency
set filter self-oscillation
VCO/LFO mode
Q - Quad mode
06
set resonance
self-oscillate past 1
o'clock
gain unipolar attenuator
for
signal IN
set QUAD mode
4-pole filter out
(360° Q-sinewave)
set COARSE filter cutoff
frequency
signal to be
filtered
out
t
moderate Q & signal IN
out
t
high Q : no signal IN drop
increase
Q
IN
IN
In QUAD mode, the increase of Q doesn't
make decrease the signal IN level, as
usually in this type of filter.
Illustrated here with 4-pole out.
set FINE filter cutoff
frequency
out
time
sweep CV
Filter sweep
07
unipolar attenuator for
sweep input
set resonance
self-oscillate past 1
o'clock
gain unipolar attenuator
for
signal IN
set Q response
set FINE filter cutoff
frequency
set COARSE filter cutoff
frequency
signal to be filtered
MIDI/CV CONVERTER
SWEEP
out
CV out
sweep CV
trig/gate CV
Filter patch 1
08
unipolar attenuator for
ADSR (1) input
set resonance
self-oscillate past 1
o'clock
gain unipolar attenuator
for
signal IN
set Q response
set FINE filter cutoff
frequency
bipolar attenuator for
ADSR (2) input
set COARSE filter cutoff
frequency
VCO out
1V/oct. CV in
VCO
pitch CV
MIDI/CV CONVERTER
CV out
ADSR (1)(2) trig/gate CV
OUT
filter out
Filter patch 2
09
unipolar attenuator for
FM1 input
set resonance
self-oscillate past 1
o'clock
gain unipolar attenuator
for
signal IN
set Q response
set FINE filter cutoff
frequency
bipolar attenuator for
FM 2 input
set COARSE filter cutoff
frequency
VCO out
CV in
OUT VCA 1V/oct. CV in
VCO
ADSR
trig/gate CV
pitch CV
MIDI/CV CONVERTER
Filter patch 3
10
unipolar attenuator for
FM1 input
set resonance
self-oscillate past 1
o'clock
gain unipolar attenuator
for
signal IN
set Q response
set FINE filter cutoff
frequency
bipolar attenuator for
FM 2 input
set COARSE filter cutoff
frequency
VCA out
CV in
VCA
trig/gate CV MIDI/CV CONVERTER
VCO
ADSR
pitch CV
1V/oct. CV in
OUT
4 slopes filter
11
unipolar attenuator for
FM1 input
set resonance
self-oscillate past 1
o'clock
gain unipolar attenuator
for
signal IN
set Q response
set FINE filter cutoff
frequency
bipolar attenuator for
FM 2 input
set COARSE filter cutoff
frequency
unipolar attenuator for
Q CV input
signal to be
filtered
24dB/oct. out
18dB/oct. out
12dB/oct. out
6dB/oct. out
Put into self-oscillation, the DR.
OCTATURE II becomes a stable, 1V/Oct
tracking VCO.
Sine VCO range : 17Hz to 22kHz (0.059s
to audiorate).
VC sine oscillator
12
make filter
self-oscillate
set COARSE sine VCO
frequency pitch CV
set in
VCO mode set FINE sine VCO
frequency
VCO sine
outputs
out
time
VC sine oscillator
Tracking filter
13
unipolar attenuator for
FM1 input
set resonance
self-oscillate past 1
o'clock
gain unipolar attenuator
for
signal IN
set Q response
set FINE filter cutoff
frequency
bipolar attenuator for
FM 2 input
set COARSE filter cutoff
frequency
MIDI/CV CONVERTER
VCO out
1V/oct. CV in
VCO
pitch CV
CV out pitch CV
OUT
VC-Q filtering
14
unipolar attenuator for
FM1 input
set resonance
self-oscillate past 1
o'clock
gain unipolar attenuator
for
signal IN
set Q response
set FINE filter cutoff
frequency
bipolar attenuator for
FM 2 input
set COARSE filter cutoff
frequency
Q CV
OUT
unipolar attenuator for
Q CV input
signal to be
filtered
Stereo filter
15
unipolar attenuator for
FM1 input
set resonance
self-oscillate past 1
o'clock
gain unipolar attenuator
for
signal IN
set Q response
set FINE filter cutoff
frequency
bipolar attenuator for
FM 2 input
set COARSE filter cutoff
frequency
unipolar attenuator for
Q CV input
signal to be
filtered
RIGHT out
LEFT out
Signal crushing
16
set resonance
self-oscillate past 1
o'clock
gain unipolar attenuator
for signal IN
clip past 12 o'clock
set Q response
3-pole filter out
(135° Q-sinewave)
3-pole filter out
(315° Q-sinewave)
out
time
signal to be filtered
out
time
clipping signal
increase
IN
gain
set FINE filter cutoff
frequency
bipolar attenuator for
FM 2 input
set COARSE filter cutoff
frequency
signal to be
filtered
unipolar attenuator for
FM1 input
gain unipolar attenuator
for
signal IN
feedback
loop out
Feedback loop
17
signal to be
filtered
MIXER out
filter out
MIXER
unipolar attenuator for
FM1 input
set resonance
self-oscillate past 1
o'clock
set FINE filter cutoff
frequency
bipolar attenuator for
FM 2 input
set COARSE filter cutoff
frequency
set Q response
OUT
Self-cutoff modulation
18
gain unipolar attenuator
for
signal IN
unipolar attenuator for
FM1 input
set resonance
self-oscillate past 1
o'clock
set FINE filter cutoff
frequency
bipolar attenuator for
FM 2 input
set COARSE filter cutoff
frequency
set Q response
signal to be
filtered
OUT
Self-Q modulation
19
gain unipolar attenuator
for
signal IN
unipolar attenuator for
FM1 input
set resonance
self-oscillate past 1
o'clock
set FINE filter cutoff
frequency
bipolar attenuator for
FM 2 input
set COARSE filter cutoff
frequency
set Q response
signal to be
filtered
unipolar attenuator for
Q CV feedback
out
time
BD : Attack-Decay CV
Bass drum
20
unipolar attenuator for
BD CV input
set Q response
set FINE bass drum tone
set COARSE bass drum
tone
MIDI/CV CONVERTER
BASS
DRUM out
CV out
BD CV
trig/gate CV
make filter
self-oscillate
PING out
Ping !
21
gain unipolar attenuator
for
signal IN
set just under filter self-
oscillation
set FINE ping frequency
set COARSE ping
frequency
set Q response
short A/D
or trigger
out
time
Trigger or A/D
Put into self-oscillation, the DR.
OCTATURE II becomes a stable, 1V/Oct
tracking LFO, with 8 90°-shifted phase
outputs.
Sine LFO range : 0.017Hz to 300Hz (59s
to 0.003s).
Quadrature LFO
22
set COARSE sine LFO
frequency
make filter
self-oscillate
set in
LFO mode
0°
45°
90°
135°
180°
225°
270°
315°
360°
QUADRATURE LFO outs
set FINE sine LFO
frequency
Quadrature LFO chart
23
0°
45°
90°
135°
180°
225°
270°
315°
360°
45° out
0°
45°
90°
135°
180°
225°
270°
315°
360°
225° out
1-pole
0°
45°
90°
135°
180°
225°
270°
315°
360°
90° out 0
°
45°
90°
135°
180°
225°
270°
315°
360°
270° out
2-pole
0°
45°
90°
135°
180°
225°
270°
315°
360°
315° out
3-pole
0°
45°
90°
135°
180°
225°
270°
315°
360°
180° out
0°
45°
90°
135°
180°
225°
270°
315°
360°
360° out
4-pole
0°
45°
90°
135°
180°
225°
270°
315°
360°
135° out
Sine LFO range : 0.017Hz to 300Hz (59s to 0.003s).
Shepard tone
24
set COARSE shepard
tone sequence speed
make filter
self-oscillate
1V/oct.
CV in VCO 3
1V/oct.
CV in VCO 1
1V/oct.
CV in
1V/oct.
CV in
VCO 4
VCO 2
set in
LFO mode
In LFO mode, take 4 outs 45°apart and
feed CV pitch of 4 in-tune VCOs.
45°-135°-225°-315° outs illustrated here.
set FINE automatic
panning speed
In LFO mode, take 2 outs 180° apart, first
to the left VCA CV and second to the
right VCA CV.
Illustrated here with 4 pole outs.
Automatic stereo panning
25
set FINE automatic
panning speed
set COARSE automatic
panning speed
make filter
self-oscillate
CV in LEFT out VCA left
CV in RIGHT out VCA right
signal to be
panned
set in
LFO mode
signal
in
Variable slope random generator
26
set FINE random range
set resonance
add sine to signal in
set COARSE random
range
set random amplitude
signal
in
filter in NOISE
MIDI/CV CONVERTER
trig/gate CV
RANDOM
CV out S&H 1 RANDOM
CV out
trig/gate CV
S&H 2
Feed Planar CV X & CV Y with 90° phase-
shifted LFO outs.
Illustration for 180° and 270° LFO outs.
180° LFO out
With Intellijel Planar - Circular pattern patch
27
set FINE rotational
speed
set COARSE rotational
speed
PLANAR CV Y
make filter
self-oscillate
set in
LFO mode
PLANAR CV X
270° LFO out
A
D
B
C
Y
X
With Intellijel Planar - Circular pattern chart 1
28
180°
CV X
270°
CV Y
start
180°
CV X
270°
CV Y
+45°
270°
CV Y
+90°
180°
CV X
270°
CV Y
+135°
180°
CV X
A
D
B
C
Y
X
A
D
B
C
Y
X
A
D
B
C
Y
X
A
D
B
C
Y
X
50% A + 50% B 100% B 50% B + 50% C 100% C
+180° +225° +270° +315°
With Intellijel Planar - Circular pattern chart 2
29
180°
CV X
270°
CV Y
180°
CV X
270°
CV Y
270°
CV Y
180°
CV X
270°
CV Y
180°
CV X
A
D
B
C
Y
X
A
D
B
C
Y
X
A
D
B
C
Y
X
A
D
B
C
Y
X
50% D + 50% C 100% D 50% D + 50% A 100% A
Take three 90° apart outputs. Patch 0° output to A
uFade IN. Patch 180° output to B uFade IN.
Dr. Octature II 90° to Planar CV X.
uFade MIX out to Planar CV Y.
uFADE MIX knob controls the rotational direction.
Dr. Octature II CUTOFF frequency controls the
rotational speed, for uFade MIX knob at CW or
CCW.
A slow sine wave at uFade CV in will make
rotation to slowly change from CW to CCW.
Taste it at audiorate.
90° LFO out
Space-time distortion (David G. Dixon)
30
set COARSE rotational
speed
make filter
self-oscillate
PLANAR CV X
180° LFO out uFADE A in
0° LFO out uFADE B in
PLANAR CV Y
XFADE knob controls
rotational direction
set in
LFO mode
MIX out