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Chapter 5
Beyond the Basics
Keyboard Scaling
Keyboard scaling allows you to set a pivot point, a note at which your keyboard splits, in order to affect one part
of the keyboard differently than the other. For example:
60
max ----
+
" " ^
Break Point
0
-
ir "
"
^
C4N
min —-
Low Slope
60
Key Scalar
+
o
High Slope
Keyboard Scaling 1 & 2 modulation sources are similar to the traditional "keyboard" modulation source, where the
keyboard position (note value) increases or deceases the vaiue accordingly. However, using the Key Scaling 1 &
2, much more control is provided. First, you can set the Break point. This defines a specific MIDI note number where
the keyboard or note range is split. Notes above the break point are affected by the High Slope while notes below
are affected by the Low Slope parameter. The slope parameters (High/Low) can be set to positive or negative values
and affect the MODULATION destination accordingly. Remember... Key Scaling 1 & 2 are mod sources.
Sample and Hold
Sample and Hold is an easily recognizable classic synth effect that works by creating random changes in pitch or
timbre. First, up to two input sources can be selected. Both Random Noise and LFO are common settings. The
waveform generated by the input source is "sampled." The clock rate parameter determines how many "samples"
are taken. At 0, the waveform is not sampled at all. The higher the value, the fewer samples are taken. The output
of the Sample & Hold produces a NEW waveform created by measuring the amplitude of the input waveform at
the clock pulse points (check out the graphic). The clock rate can be modulated by assigning any of the modulation
sources (use the Clock Mod parameter). A clock modulation sensitivity parameter is also available which allows you
to scale (+ or -) the clock rate value. Whew...got that?
Now...enter the Lag Generator.
(First, check out the graphic...) Tire Lag generator further alters the waveform by "smoothing" out the amplitude
changes from pulse to pulse.
Again, this is a bit hard to write about, but is easy to hear. Give it a try
Peavey Electronics Corporation
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