User guide

Chapter 5: Advanced Programming Functions
28
Axiom User Guide
Setting Trigger Values for Buttons or Sustain Pedals
It is possible to set a Trigger Value for a button or the Sustain Pedal, causing it to send one value when pressed
and held down, and another value when released.
The Sustain Pedal is already configured to send trigger values by default, ensuring it activates the Sustain effect
when pressed and deactivates it when the Pedal is released. Buttons can also be configured to operate this way,
which requires four values to be specified. In the example of the Sustain Pedal, these four values are:
When working with proprietary M-Audio parameters from the 128 – 255 range, the “Control Assign” setting
is used to configure a control for this special mode of operation. This means that certain values that are usually
specified through the “Control Assign” setting must instead be specified via the “Data 1" parameter such as
the standard MIDI CC parameter in the example below.
The following example will configure a button to “hard pan” the sound to the right speaker when it is held
down, and “hard pan” to the left speaker when it is released. This involves configuring the button to operate
as a trigger, while controlling the Pan parameter (MIDI CC 10).
To set Trigger Values for buttons or Sustain Pedals:
1 Select a button as described earlier.
2 Press the Edit button.
3 Press the Control Assign key. The LCD screen will read “ASIGN” and display the currently selected control
(for example “F10”), and the current MIDI CC assignment (for example “87”).
4 Type 146 using the number keys. This configures the button to operate as a trigger (press/release). See
Appendix B, “Assignable MIDI CC’s.”
5 Press the Enter key.
6 Press the Edit button.
7 Press the Data 1 key. The LCD screen will display the currently assigned function (for example “NOTE”), the
selected control (for example “F10”), and the current value.
8 Type 10 using the number keys. This specifies which parameter the button will trigger and release. In this
example, MIDI CC 10 (Pan). See Appendix A, “Standard MIDI Control Numbers (MIDI CC’s).”
9 Press the Enter key.
10 Press the Edit button.
Key Parameter Value
Control Assign Trigger On/Off operation 146
Data 1 (example) MIDI CC number 64 (Sustain)
Data 2 (example) Button/Pedal Released 0 (minimum)
Data 3 (example) Button/Pedal Pressed 127 (maximum)