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Yamaha YRM-502 Manual

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Output level of operator (O and A9 • 0 (Output level) This sets the output level of the operators. With the FM Sound Generation system, the volume and the timbre will change according to the output level of the operators. The setting range is 0 (minimum) to 127 (maximum). Try changing the output level of BRASS 1 with operators two and three OFF. First change the output level of operator four (default setting is 127). This will change the volume because operator four is the carrier. Next, change the output level of operator one (default is 112). Operator one is modulator, thus the output level affects the degree of modulation. As the level is raised, the amount of modulation will increase and the sound will become more brilliant as the level and number of the harmonics increase. Increasing the output level of the modulator still further will cause the sound to become noise. Lowering the output level of the modulator will cause the sound to become more pure as the degree of modulation decreases. There will be no frequency modulation (if operator 3 is OFF), and the voice output will become a sine wave when the modulator output level drops to 0. • Aj (Adjust) The perceived volume or loudness of different voices will vary depending on the algorithm and the individual operator setting of each voice. In order to make different voices sound similar in volume, an output level "scaling" feature is included. This is called Adjust (,", ). Instead of changing the operator output level values for each operator in a voice, you change the Al settings. Quiet voices cannot generally be made louder, but louder voices can be made quieter. The setting range is 0 to 15. In this case, 0 is the maximum output level and the output level of the operator will be decreased as the numeric value is increased. All carriers of a voice should be set to the same A value. Frequency of operator (F, IF, Dt) • f (Frequency) This sets, the frequency of each operator as a ratio of the standard keyboard pitch. The setting range is 0 to 15. The keyboard frequency is halved when the value is 0. One is equal to the keyboard frequency (based on eight feet). Higher ratios create frequencies which are equal to the keyboard frequency multiplied by the ratio. For example, setting the value to eight will result in a frequency eight times higher. F Pressed key pitch ratio 0 0.5 1 1 . . 15 15 -28-

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Output
level
of
operator
(O
and
A9
•
0
(Output
level)
This
sets
the
output
level
of
the
operators.
With
the
FM
Sound
Generation
system,
the
volume
and
the
timbre will
change
according
to
the
output
level
of
the
operators.
The
setting
range
is 0
(minimum)
to
127
(maximum).
Try
changing
the
output
level
of
BRASS
1
with
operators two
and
three
OFF.
First
change
the
output
level
of
operator four
(default setting
is
127).
This
will
change
the
volume because
operator
four
is
the
carrier.
Next,
change
the
output
level
of
operator
one
(default
is
112).
Operator
one
is
modulator,
thus
the
output
level
affects
the degree
of
modulation.
As
the
level
is
raised,
the
amount of
modulation
will increase
and
the
sound
will
become more
brilliant
as
the
level
and
number
of
the
harmonics
increase.
Increasing
the
output
level
of
the
modulator
still
further
will
cause
the
sound
to
become
noise.
Lowering
the
output
level
of
the
modulator
will cause the
sound
to
become more
pure
as
the
degree
of
modulation
decreases. There
will
be
no
frequency
modulation (if
operator
3
is
OFF),
and
the voice
output
will
become
a
sine
wave
when
the
modulator
output
level
drops to
0.
•
Aj
(Adjust)
The
perceived
volume
or
loudness
of
different
voices
will
vary
depending
on
the
algorithm and
the
individual
operator
setting of each
voice.
In
order
to
make
different
voices
sound
similar
in
volume,
an
output
level
"scaling"
feature
is
included.
This
is
called
Adjust
(,",
).
Instead of
changing
the
operator
output
level
values
for
each operator
in
a
voice,
you
change
the
Al settings.
Quiet
voices
cannot
generally
be
made
louder,
but louder
voices
can
be
made quieter.
The
setting range
is
0
to
15.
In
this
case,
0 is
the
maximum
output
level
and
the
output
level
of
the
operator
will
be
decreased
as
the numeric
value
is
increased.
All
carriers of
a voice
should
be
set
to
the
same
A
value.
Frequency
of
operator
(F,
IF,
Dt)
•
f
(Frequency)
This
sets
,
the
frequency
of each
operator
as
a
ratio
of
the
standard
keyboard pitch.
The
setting
range
is
0
to
15.
The
keyboard
frequency
is
halved
when
the
value
is
0.
One
is
equal
to
the
keyboard
frequency
(based
on
eight
feet).
Higher
ratios
create frequencies
which
are
equal
to
the
keyboard
frequency
multiplied
by
the
ratio.
For
example,
setting
the
value
to eight
will result
in
a
frequency
eight
times
higher.
F
Pressed
key
pitch
ratio
0
0.5
1
1
.
15
.
15
-28-