Table of Contents
Advertisement
CONTROLLER
PORTAMENTO
Portamento
is
the
sliding
of
a
note
from one
pitch
to
another.
The
synthesizer
is
the
only
keyboard
instrument
which
can
produce
porta-
mento
effects.
Through
the
effective
use of the
SH-7 portamento
feature
you
can
create porta-
mento
effects
like
those
sometimes
used with
trombone and
violin
playing.
1.
PORTAMENTO
TIME
CONTROL
This controls the
time
required
for
the
change
of
pitch.
As
this
knob
is
turned clockwise (O),
the
portamento time
is
increased.
At
the
extreme
counterclockwise
position
no portamento
is
in
effect.
2.
PORTAMENTO MODE
SWITCH
In
the
UP
position,
portamento
is
effected only
when
a
key
higher
than
the
last
played note
is
depressed.
In
the
DOWN
position,
it
is
effected
only
when
a
key lower
than
the
last
played note
is
depressed.
At
NORMAL,
portamento
is
effected
in
both
directions.
3.
TRANSPOSE SWITCH
The
TRANSPOSE
switch transposes the
keyboard
pitches
up
or
down
one
octave.
L
=
LOW
range;
M
=
MIDDLE
range,
and
H
=
HIGH
range.
4.
TOTAL
VOLUME
This controls
the
total
volume
of the
output
sound from
SH-7. Changing
the
tone
color
by
means
of the
VCF
sometimes
causes
a
change
in
the
volume
of
sound.
In
such
cases,
the
TOTAL
VOLUME
should be
adjusted with
this
knob.
BENDER
This section functions for
changing
the
pitch,
tone
color,
or
volume by means
of
the
BENDER
lever
(5).
The
BENDER
variation
of the pitch
is
very
effective for
imitation of
guitar
choking.
Also,
by means
of the
mode
switches, the
depth
of
LFO
control of
VCO
(vibrato),
VCF
(growl),
and
VCA
(tremolo) can be controlled with the
BENDER
lever.
5.
BENDER LEVER
This
is
the
lever
which
controls the
bend
effects.
It
has a click-stop
at
center with
a
spring return
to center.
When
using the
BENDER
for control
of
LFO
depth, the
lever
may
be
moved
in
either
direction,
the
effect
is
the
same.
6.
SENSITIVITY
CONTROLS
These knobs
control the
sensitivity
of
the
BEND-
ER
on
each
effect.
7.
CONTROL MODE
SWITCHES
These
switches decide
which
BENDER
function
will
be
in
effect.
At
OFF,
the
BENDER
effect
is
cancelled.
At CV,
the
control
voltage
(CV)
output
of the
BENDER
lever
is
used
to control
BENDER
the
effect,
with the
related
SENSITIVITY
knob
controlling the
depth
of the
effect
when
the
BENDER
is
at
either
of
its
maximum
positions.
For example, with
the
VCO
section
SENSITIVITY
knob
at
maximum,
it
is
possible to get a
±one
octave
variation
of
VCO
pitch.
This section
may
also
be used
for transposing
parts
during the
progress of
the music. This
can be
done
by
tuning
the synthesizer
in
the
normal way,
then, with the
BENDER
control
at
maximum
("+"
or
"—
",
as
the case
dictates!
and
the
MODE
switch
at
CV,
use the
VCO
SENSITIVITY
knob
to
tune the
VCO
to the transposing
pitch desired.
With
this
arrangement,
a
simple
movement
of the
BENDER
lever
will
instantly
transpose the
synthesizer to
the desired key.
With
the
CONTROL MODE
switches
in
LFO,
the
SENSITIVITY
knobs
will
control the
maximum
depth
o,f
the
LFO
effect.
For example, with
LFO
control of
the
VCO,
the
BENDER
lever
will
determine
the
depth
of
the
LFO
effect
with the
SENSITIVITY
knob
determining
the
maximum
depth
available
with
the
BENDER
lever.
With
this
arrangement,
it is
possible to
control
the
depth
of vibrato,
for
example,
by hand by means
of
the
BENDER
lever.
BENDER
effects
on
the
VCO, VCF,
and
VCA
may
be used completely independent of each
other,
or simultaneously
in
any combination.
The
connections
between
the
BENDER
section
outputs
and
the
respective
modules
(VCO, VCF,
VCA)
are
made
internally
and
have
no
relation
to the
settings
of other
controls,
thus
BENDER
control
may
be quickly
and
simply put
into effect
using
only the
SENSITIVITY
knobs
and
the
CONTROL MODE
switches.
EXAMPLE OF
USE WITH
PORTAMENTO
"UP"
MODE
^
: cj
j
J
j
18
Advertisement
Table of Contents
