Effects Section OFF - affects
VCO
1
only;
VCO* 2. 3 & 4
ere
not
changed. This
is
useful
for bending
ont note »n and
out
of
tune
with
the
other three
notes,
either
mooopboni-
cally or when playing
polyphonic
chords
(One
"rf«t n?
usage is
to
reduce the
levels o» VCOs 2 through
4 and Send/Modulate
VCO 1 as it it
were the "lead" instrument in
a
4*man section.)
Effects
Section ON
* affects "Slave"
VCOs.
as
designated
by
Effects'
Sec-
tion "SINGLE/DOUBLE"
switch
Single - VCOs
2. 3 &
4 Double
-
VCOs
2 &
4 This position is
used to
"sweep" Synchronized
or Cross
Modulated VCOs. for unusual and
dramatic effects (see Effects
Sec*
tiOM.
3k
Pulae Width/Pulse Width
Modulation
PW/PWM Section
"Oiis soction provdes overall control of
the
VCO PW and PVrM waveforms, when-
ever they are selected »n the
VCO
Sec-
tion, (The VCOs* Triangular (a l and
Sawtooth (K)waveformsare not effected
by this section
I
Varying the pulse width
of
a
VCO waveform creates
a
dramatic
shift
in its harmonic content, and hence
in the sound produced. This ability in
effect
offers the user
a
virtually unlimited
range
of baste timbres
as
raw materials,
and can create some very fat sounds
as
well. The Mono/Poly offers either manu-
ally variable poise width (PW) or con-
tinuously changing tie. "modulated" )
pulse width rPWM). depending on the
waveform selection in the
VCO
Section.
A PW - The PW WIDTH control manu-
ally venes the pulse
width
for any
selected
VCO "W
waveforms.
At
approximately
"5".
the PW
waveform
4 a SOX duty
Cycle Square
wave,
with
•ts
characteristkai
l
y dull,
cujrinettilce
"hollow" sound rca
ted by the
pre-
sence of
oaa*
harmonics only
Rotating
the control
either left or
right
from
canter gradually
reduces
the
pulse
width, creating
a shift m tonal quality
to a
bright, "nasally"
sounding timbre.
At either extreme control positions
fO-1
and 9-10). the PW
waveform
collapses,
and
no
sound
will
be heard.
B.
PvVM - Pulse
Width Modulation is
used to
create
a "chorusing"*type
ef-
fect
by
changing
the pulse
width,
which results
^ a
constantly shifting
harmonic balance. Sounds ranging
from subtle animation
to
heavy modu-
lation effects can
be
thus created The
user can select
as
the
source
of modu-
lation either Modulation Generator T
or
2
which provides
a
continuous
modulation effect
at variable speeds
or
an
Envelope Generator
.,„
which creates
a dramatic sweep effect
every nme the Envelope
Generators
^re triggered
by a key
depression (this
Bel DOUBLE und X-MOD modulien
der
Ausgang von VCO I den VCO 2 und
der Ausgang von VCO 3 mooulnri
VCO 4 Bei DOUBLE und
$Y^ wird
die Tonhohe von VCO 2 iu
der
von
VCO 1 und die von VCO 4 iu der von
VCO 3 hmge/ogan FREO MOD varnen
unterdeswn die Tonhohe der VCOs 2
und
4 Qiese Effexte konnen uber den EF
FECTS-Schaiterlhietn- undausoeschaitet
werden
Ndheres uDer diese Effe*te unter
,
h
rweiter
te
Anwenoungsmdglich kei
ten
"
und auf dem
Begta
tionband
oscilieteurs VCO 2 a
4
est
mains
en
synchronisation
evec
la hauteur
du
son de
loKiHateur
VCO
l. Pendant r»
temps. FREO MOD f«i vaner la hauteur
du
son
des
osciilateur* VCO
2 A
4
Avec
DOUBLE et
X4r10D. la sortie
de
rosoMaieur VCO 1 module rosoiiateur
VCO
2,
tendts aue la sort>e de roadl-
lateur VCO 2 module I'oiciilateur VCO
4,
Avtc DOUBLE ET SYNC . la hautmjr du
son de rosollateu* VCO 2 est
rameraie
vers cefle de rosoMaieur VCO 1 cano%
que la
hauteur
du
ion
de
I'osoliatcur
VCO 4 est
ramenee
vers
ce'le
de I'oecil-
(ateur
VCO 3
Pendent
ce
temps.
FREO
MOO fa«t verier la hauteur
du son
del
ofciHeteurs VCO
2 et
4,
Ces
effet*
son*
commutes sur marche
et
arr4t avec
la
commutateur EFFECTS (h|
De plus ample* details
som
donnds
au
chapure intitule* "Obtentton
de
resultat
optimum
avec le
synmettseu'
VonoV
Po-y"
et !a
bance caccompagnemenL
effect
n>
controlled
by
the SINGLE/
MULTIPLE TRIGGER switch setting)
•The PWM Source switch selects one
of the three modulation sources
MGO. MG-2 or the Voltage Con-
trolled Filter Envelope Generator
<VCF
EG).
•The PWM Intensity control varies the
depth of the modulation selected
by
the PWM Source switch.
4) "ONE-TOUCH" EFFECTS SECTION
The "One Touch" Effects section is
a
powerful addition
to
the Mono/Poly
incorporating such dynamic sounds as
SYNC {Synchronised Swept Oscillators!.
X-MOD (Cross Modulation), and
other
special effects.
Two
different
types
of
SYNC
and X MOD functions
are pro-
vided,
and the SYNC and
x
MOO
func-
tions may
even
be
combined,
to
create an
entirety
new
r jnge of sounds.
The entire Effects section
is des-gned as a
presettable "One
Touch" system, where-
by all
necessary oontrol changes
can be
pre-set
by
the
user, and
then broughi
instantly into play by
simply
depressing
the orange EFFECTS LED
pushbutton
switch. Depressing me EFFECTS
button
again cancels the selected
effect and
instantly returns the synthesizer to
normal operation.
Note: Operation of the EFFECTS
LEO
pushbutton switch also selects the Unison
Key Assign mode, since these effects will
most often
be used
monophoniceNy. The
user is free
to
select other
modes
(e.g..
Chord Memory. Unison/Share, etc.).
»f
desired,
by
pressing the Appropriate
switch
after pressing
the EFFECTS LED
MftrJl.
All of
these effects
depend upon
master/
slave VCO
relationships, in
which one
oscillator
(the
"stave"! is
modulated
by
and/or
synchronized
to
another oscillator
!the
"master")
Such
relationship*
pro-
duce a
very
wide
range ol 'ich
and
constantly changing
waveforms, which
can create
dynamo and powerful
lead
and bass sounds as well as
many
unusual
and ipectauibjr
special effects
CONTROLS
A. MODE II):
Setects the dewed effect
SYNC
Synchronized
Sweot Oscilla-
tors
SorX Combined SYNC and X MOD
effects
X-MOD Cross Modulation
8 MODE (2):
Selects the number of Master and
Slave oscillators
SINGLE 1 Master (VCOD and 3
Slave oscillators fVCOs
2.
3 & 4)
DOUBLE 2
Master/Slave pairs -
VCOl
(Master!
6 2 (Slave),
and
VC03
(Master)
&
4 (Slave)
In SINGLE
mode,
you
can only pro-
duce one pitch
regardless of the
Key
Assign mode. Since
3
slave oscillators
are being modulated, Single mode pro-
duces 3
more intense effect.
DOUBLE mode
allows
two
different
pitches to be produced using
Chord
Memory
or
Unison/Share modes,
since
two parrs
of Master/Slave oscillators
are
provided. This means that an inter
vat of
a fifth
or
octave,
for example.
can be played
with
each
note
having
independent Effects
modulation In
addition to two-note
capabilities,
the
Double rnode provide
a
somewhat
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