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(2)
OPERATOR OK/OFF
**
These switches permit turning operators
1
—
on
or
OFF,
When
an
indicator
is ON the
corresponding operator
is ON.
VJhen
an
indicator
is
OFF the corresponding operator
is OFF.
*
If
all
operators
but the one
being
worked on
are
turned OFF while editing,
checking
the
details
of
operator
parameters
is
easier.
*
If
all the
operator OH/OFF
sv/itches
are
turned
OFF, no
sound will
be
output.
*
All
operators are automatically turned
ON
when power
to the DXl is
initially
turned
ON.
*
The operator On/CFF switch status cannot
be
stored
in the
VOICE MEMORY.
(3)
FEEDBACK:
0—7
This function permits
an
operator
to
modulate
itself with no relationship
to
carrier-modulator functions.
In
general this
function makes
it
possible
to
create brighter
sounds and sounds with noise-like
characteristics.
Operators which can have
feedback are pre-determined
in
each algorithm
pattern.
*
On the
LED
display, operator numbers
with
a
dot to their lower
right-hand
corner can have feedback applied
(fig.
27)
.
*
The
algorithm patterns are printed
on
the
display panel
to the
left
of
the
LED display.
Operators indicated with
a
loop-like line printed from
their
output back to their input are
operators
to
which feedback can
be
applied
(fig.
28)
.
*
By
applying feedback, hacmonics
are
generated within
a
single operator,
performing
the
function normally
carried
out
by
conbi nation
of
two
or
more operators.
If
an operator
to
which feedback
is
applied
is
used
as
a
modulator, not only does
the
carrier
generate
a
greater rumber
of
harmonics,
the
distribution
of
the
harmonic
Fig.
27.
LED Display:
Positions
Algorithm and Feedback
Modulator-
D
.Feedback
|_WJ
1
6.f
position
d]
[3}{t
n
111
Feedback
thm
Fig.
28.
Feedback
Modulator-
Carrier-
Modulator
Carrier
*
Feedback
spectrum
is
more uniform.
This also
makes
it
possible
to
create white-noise
type sounds with
an
even harmonic
distribution throughout
the entire
frequency spectrum.
-»p.w
*
Feedback level can
be
set
between
and
7.
At
C
feedbacjc is OFF,
and at
7
feedback
is
maximum.
(4)
ALGORITHM:
1
—
32
This permits selection
of
the
algorithm which
is
most appropriate
for the
voice
to be
created from
the
32
algorithm types which
are
provided.
*
The selected algorithm
is
shown on the
LED display.
The lowest row
of
operators function
as
carriers.
All
higher rows
of
operators are modulators
{fig.
27).
*
All
algorithm patterns are printed
on
the
display panel to the left
of the
LED
display.
The lowest row
of
operators
in each
algorithm
are
carriers, and all operators above
thes^
are modulators.
fl
*
Although
a
large number
of
algorithms
are provided,
generally speaking
algorithms with
fewer carriers and
a
greater number
of
modulators produce
the
strongest sound variation.
In
addition, noise-like characteristics
are easier to produce.
On the other
hand, an
algorithm with more carriers
lends itself
to
richer, thicker sounds.
OSCILLATOR
(fig.
29)
This section permits setting
the pitch data
for each
operator in
the FM tone
generators.
This section functions
to
set the pitch and
basic
sound,
(5)
MODE*
This
perrrats
setting
the
oscillator mode
{FREQUENCY RATIO/FIXED FREQUENCY).
FREQUEIICY
RATIO
M
*
This
is
the normal mode in
which
operator pitch varies according
to the
Fig. 29.
Oscillator Section
-m
1.00
®~
i.OftH&t
FlNt
—
22
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