Adjusting Relative Volumes With One Slider - Kurzweil PC88 A Step By Step Manual

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6. Adjusting Relative Volumes with One Slider

So far we have only shown assigning a controller to one zone. But there is no reason that
you canÕt use one controller to affect two or more zones. LetÕs say that you want to
create a Setup with three layered zones - Piano, Electric Piano, & Strings. Furthermore,
letÕs say you need to control the Piano and Electric Piano volumes separately, but you
want to have the Strings volume controlled with the same slider you use to control the
Electric Piano. In addition, you need the Strings to always be quieter than the Electric
Piano.
1. Follow tutorial #1 to create a 3 zone, layered Setup, with Piano in zone 1, Electric
Piano in zone 2, and Strings in zone 3.
2. Hold the Controllers button and move Slider A. If the display is not on zone 1, press
the Zone 1 button. The display now shows Zone:1 Slider A, Ctrl Num:None. Press 7,
then Enter to assign Slider A to Volume.
3. Press the Zone 2 button Hold the Controllers button and move Slider B. The display
now shows Zone:1 Slider B, Ctrl Num:None. Press 7, then Enter to assign Slider B to
Volume.
4. Press the Zone 3 button. Press 7, then Enter to assign Slider B to Volume. Play the
keyboard and move the two sliders. Notice that Slider B controls the volume on both
zones 2 and 3. But the strings are still as loud as the electric piano.
5(a). Press the >> button twice. The display now shows Zone:3 Slider B, Ctrl Offset:0.
Press the +/ - button, then 37, then Enter. The Offset will now be set to -37.
The Offset parameter will subtract (or add if the number is positive) a specific amount
to the normal value of the slider. So when the slider is all the way up, the value is 127-
37=90. So as you move the slider up and down, the strings are always 37 less in volume
than the electric piano.
As you move the slider down to the normal 37 position, the volume level for the strings
would be 37-37=0. What happens when you move the slider lower? MIDI can only send
values between 0 and 127, so once the value reaches 0, the slider doesnÕt send any
additional messages as you move it lower.
5(b). There is a second way to accomplish the same thing, although the end results will
be slightly different.
You should still be on the Offset parameter for Zone 3. Set it back to 0 so there is no
Offset, and press the << button once. The display now shows Zone:3 Slider B, Ctrl
Scale:100%. Press 71, then Enter.
The Scale parameter applies a percentage to the normal slider value. So if you move the
slider all the way up, the value will be 127 x .71=90.17 (since MIDI only send integer
values this will be rounded to 90). So when the slider is all the way up, it is sending the
same value as the example above using Offset.