Yamaha DX9 Operating Manual page 14

FEEDBACK:
One operator in each of the
8
algorithms has its output fed
back· to its input. Th is is the feedback operator. The
amount of feedback applied can be adjusted over a range
of 0 to 7. By increasing the FEEDBACK leve l the harmon-
ics are increased, resulting in the generation of noise-like
sounds.
RLG 1 1111
FEEDBRCK
• LFO
LFO
WAVE
SPEED DELAY PMD/ AMD
lr--6 -1...__17 _lir--a --,1.___19 -
The Low Frequency Oscillator produces low-frequency
sine, saw-tooth or square waves, or a SAMPLE/HOLD
waveform. The LFO waveform can be used to apply vibrato,
tremolo or "wow" effects to the voices. The amount of
LFO modulation applied can be controlled using the
modulation wheel, or breath controller once appropriate
WAVE,SPEED and DELAY parameters are set. (Refer to
page
26)
WAVE:
This selects the waveform output by the LFO. Any of the
six waveforms shown below can be selected.
TRIANGL
SAW OWN
SAW UP
SQUARE
SINE
S/HOLD
A
(Triangular wave)
~
(Number 1 sawtooth waveform)
/"'1
(Number 2 sawtooth waveform)
rl_j
Square wave
~
Sinewave
Sample and hold
RLG 1 1111 ~LG 1 1111
LFO SPEED '3'3 LFO DELR\'
=
99
L - - - - - - - - - - - e . : T h i s value will change=t
<
13>
SPEED:
The speed (frequency) of the LFO can be set from 0 to
99. 0
is the slowest LFO speed while
99
is the fastest.
DELAY:
This creates a delay between initial key closure and ap-
plication of LFO modulation. A setting of 0 results in no
delay - LFO modulation begins the instant a key is pressed
-and a setting of 99 creates the longest delay.
PMD/AMD:
Pressing this key alternately switches to PMD and AMD.
PMD (Pitch Modulation Depth):
Varies, over a
0
to
99
range, the depth of LFO modulation
applied to pitch. A 0 setting produces no pitch modulation,
and a setting of
99
produces maximum modulation.
The PMD function is separate from the effect of the con-
trollers, and can be used to apply vibrato effects that are
entirely independent of the controller settings.
AMD (Amplitude Modulation Depth):
Varies, over a 0 to 99 range, the depth of LFO modula-
tion applied to amplitude. A
0
setting produces no ampli-
tude modulation, and a setting of 99 produces maximum
modulation.
Thf! AMD function is separate from the effect of the con-
trollers, and can be used to apply tremolo effects that are
entirely independent of the controller settings.
• MODULATION SENSITIVITY
MOD SENS.
PITCH/ AMP
110
This adjusts the sensitivity (depth) of pitch and amplitude
modulation. This parameter must be greater than 0 before
any amplitude or pitch modulation can be applied.
Be sure to check this parameter before using the modula-
tion wheel or other controllers.
RU3 1 1111
p t·10D
SEt~S
I
=
1
PITCH:
RLG 1 1111
R t·10D
SEt·6
I
OP1
=
0
Sensitivity to pitch modulat ion is variable from 0 to 7.
This value sets the modulation sensitivity for all oper-
ators. Applying pitch modu lation results in vibrato type
effects.