M-Audio OXYgen 25 Manual Del Usuario página 16

Limiting the Range of a Knob, Wheel, or Fader
The MIDI protocol allows for a maximum range of transmitted values between 0 and 127. The effective range of
values transmitted by a knob, wheel, and fader can be limited by entering values other than 0 and 127 (default) for
the Data 2 and Data 3 parameters. For example, with the Data 2 parameter set to 38 and Data 3 set to 93, if a knob is
set fully counter-clockwise, the lowest value it transmits is 38. If the knob is turned fully clockwise, the highest value it
transmits is 93.
This can be useful in a variety of scenarios, for example, to keep a knob within the "sweet spot" of a synthesizer
parameter (for example, filter cutoff), or to quickly recall a specific minimum or maximum volume setting for a track.
The following example configures a knob or fader to operate within a limited range (38 to 93):
Key
Control Assign (example)
Data 2 (example)
Data 3 (example)
1. Press the Edit button.
2. Press the Select button or Control Select (Ctrl Sel) key.
3. Select a control as described earlier in this guide.
4. Press the Control Assign (Ctrl Asgn) key.
5. Type 7 using the number keys. This assigns MIDI CC number 7 (Volume) to the knob, wheel, or fader.
6. Press the Data 2 key.
7. Type 38 using the number keys.
8. Press the Data 3 key.
9. Type 93 using the number keys.
10. Press the Enter key.
NOTE: The operation of knobs, wheels, and faders can be reversed, even if the range of operation is limited. This is
achieved by entering a higher value for the Data 2 parameter and a lower value for the Data 3 parameter.
Parameter
MIDI CC number
Minimum value
Maximum value
16
Value
07 (Volume)
38
93