Output Level Button (#10) Part - Yamaha DX7 II FD Reference Manual

Output Level
Button (#10)
Part2
Scaling mode
Now that most of the basic voice parameters have been presented, it is time
to
finish with
the rest of the output level parameters. In part 1 above, you learned how to adjust the
basic output level of each operator. Other parameters are used to modulate this output
level. The rest of the output level parameters can also be used to modify the output level
of each operator independently.
Pressing the Output level button (#10) toggles between two different LCD displays. The
first screen allows you to select the scaling mode, which is described below. The second
screen depends on which scaling mode you have selected.
The keyboard level scaling mode determines which scaling mode is used
to
alter the
output level of the operators relative to the range of keys played on the keyboard. This
allows you
to
change the volume or timbre of a voice in different regions of the keyboard
Keyboard level scaling is extremely important in creating realistic acoustical instrument
voices. For example, consider the piano. The timbre changes as notes of different pitch
are played. In addition, hitting the top and bottom keys with equal force does not produce
sounds of equal volume. These effects can be simulated with keyboard level scaling.
The two scaling modes are described below. Each is accompanied by descriptions of the
parameters which appear in the second LCD display for that mode.
Normal Scaling
The normal scaling mode is illustrated by the diagram on the front panel of the DX7 II. It
is reproduced here for easy reference.
The meaning of this diagram will become evident as you read about the various normal
scaling parameters.
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