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RP-20 Valve
Section-5 Advanced Topics
Assigning Modifiers
Modifiers are unique tools that can be used to dramatically alter your sound based on information from External expression pedals and
external footswitches, signal amplitude, the settings of a Low Frequency Oscillator (LFO) or MIDI Continuous Controller.
Every Program in your RP-20 Valve has a set of Modifiers. Up to 16 Modifier links can be assigned to control any parameter. There are five
types of Modifiers that can be linked to a parameter:
• External expression pedal
• The foot pedals and switches on the RP-20 Valve.
• LFOs
• MIDI CCs
• Dynamic (signal amplitude dependent).
MIDI CCs
When you use MIDI CCs, the RP-20 Valve responds to CC numbers 0-127 and CHP (channel pressure or aftertouch). This means that you
could assign an Expression pedal, a keyboard's modulation or pitch bend wheel, or any other MIDI CC device to control effect Parameters.
LFOs
When you use LFOs, Parameter values can be controlled automatically between a defined minimum and maximum setting at a rate set by the
user. The RP-20 Valve has 2 user definable LFOs in each program that can be assigned to any Parameter.
For example, you can create an auto panner without using an auto panner module. Simply link an effect's output pan parameter to the LFO
modifier and the LFO will move that parameter back and forth. This modifier can be a very useful weapon in the ongoing battle of new sound
creation. There are two LFOs available in each program that can use unique speeds and waveforms.
Dynamic Modifiers
When you use Dynamic Modifiers, the Parameter values are controlled in relation to the dynamics of the input signal. The possibilities are
nearly endless, and they cannot be duplicated using any other method.
For example, you could link the Dynamic Modifier of a Program to control a chorus level. It doesn't sound like much on paper, but imagine
the expressiveness of this type of effect on the guitar part. As the dynamics of the music increase, the chorus becomes less apparent. Ease up
on the string attack a little and the chorus increases. ALL IN REAL TIME!
NOTE: Linking a Modifier to a Parameter causes the Parameter to change as if you were changing it using the <Data> wheel. The only
difference is that the <Store> button and CHANGED icon do not light. Therefore, the Default name may display 'Custom' if a parameter
is consistently being changed by a Modifier. Storing the Program will store these new parameter values.
User Guide
Section - 5 Editing Modules
51
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