Yamaha DX11 Operating Manual page 10

[1]
A[gorithm(1-8)
The Algorithm
is
the ''arrangement" of the four opera-
tors.
The
8
algorithms are printed
on
the front panel.
The
LCD
will
also
show
a
graphic representation of the
algorithm.
[2]
Feedback
(0-7)
In
any
algorithm,
operator 4 can be
set
to
modulate
itself
on
a
scale
of
(no feedback)
to 7
(maximum
feedback).
LFO
Parameters
Keys 4
,
5
and
6
have
the
LFO
parameters.
LFO
is
a
Low
Frequency
Oscillator that
sends a continuously
changing
control signal.
This
signal,
depending on
the Sensitivity
(p.9)
and
Controller
Parameter
(p.
1
2) settings,
can
affect the
output
level
of
the
operators
or the overall pitch
of
the voice.
As
you can
see froiji
the
diagram below, the Controller
Parameter
[25]
—
[28] settings
determine
how
the
MIDI
Controllers
(Modulation Wheel, Foot
Controller,
Breath Controller
and
Aftertouch)
will
regulate the
LFO
signal
going
to
the oper-
ators,
and
the Sensitivity settings
determine
how
the operators
will
react to the
LFO
signal.
As you
can
see
from
the diagram,
the
modulation you
set in
the
LFO
does not go
directly to
the
operators.
The
final
effect
will
depend on
the
LFO
Settings, the Controller
Parameter
settings,
the Sensitivity
settings,
and
the position of the
MIDI
controllers
(Modu-
lation
Wheel, Foot
Controller.
Breath Controller
and
Aft-
ertouch)
on your keyboard.
This
"modulation matrix"
may
seem
complex, but
it
gives
you
total
expressive control
over your instrument.
[3]
LFO
(1)
Wave
The
first
three
waveshapes (saw
up,
square,
triangle)
are
probably
familiar to
you.
S/Hold
stands
for
Sample
And
Hold.
At
periodic intervals
determined by
the
LFO
Speed,
a
random number
is
sampled,
and
the
LFO
is
held
at
that
random
value
until
the
next sample. This
is
especially useful
in
creating
sound
effects.
^-.AT-Pitch;;
1
^M'y..:-.
-
t
Modulation Matrix Diagram
BC
Pitch
0-99
1
MW
Pitch
0-99
t
. '
*-
1
1
k
FC
Pitch
-:;:0;-;99;..-;
.;.
^
'
.
'
-
SYNC
?;
ON/OFF
^
:
phAs
.
Q
7
.
1 '
^
.
^^^t
'Sn.-^-viJP
^
r
'
-
AT
Amplitude
0-99
5PEED
.;-6>:S9-'.-:
WAVE
L
1
1
1
1
1
*
s
I
8C
Amjplitgde
1
1
.f
i
MWAmptilude
0-89
1 ^
1
r
"
PMD
0-99
:.;
Delay
:
^^
:
0-99
^^
»-
—
<
J
I
.
^
AMD
:
AMS
0*3
0-99
f