M-Audio OXYGEN61 Manuel D'utilisation page 15

The following example configures a knob, wheel, or fader to reverse its operation:
1. Press the Edit button.
2. Press the Select button or Control Select (Ctrl Sel) key.
3. Select a control as detailed earlier in this guide.
4. Press the Data 2 key.
5. Enter 127 using the number keys. This configures the control to reach its maximum value when it is all the way
down.
6. Press the Data 3 key.
7. Enter 0 using the number keys. This configures the control to reach its minimum value when it is all the way up.
8. Press the Enter Key.
The knob, wheel, or fader now operates reversed. What was originally the maximum position is now the minimum
position, and vice versa.
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, wheel, 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 wheel, knob 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.
Assigning RPN/NRPN Messages to a Knob, Fader, Button, Wheel, or Pedal
Oxygen 61 allows transmission of all three necessary MIDI CC messages for RPNs and NRPNs by simply moving a
knob or fader or wheel or by pressing a button or the sustain pedal.
•
The Control Assign setting allows assignment for control of the RPN Coarse (132) and RPN Fine (133), as well
as NRPN Coarse (134) and NRPN Fine (135) parameters.
•
The Data 1 setting lets you specify which MIDI CC number is sent to alter values (usually: Coarse=CC 6;
Fine=CC 38).
•
The Data 2 setting defines what value is sent for LSB (RPN: CC 100, NRPN: CC 98) while the Data 3 setting
defines which value is sent for MSB (RPN: CC 101, NRPN: CC 99). Together, the LSB and MSB values specify
the RPN/NRPN parameter to be edited.
•
Assigning a knob, wheel, or fader to control an RPN/NRPN on a connected hardware or software device requires
four values to be specified.
•
Assigning a button or the sustain pedal to control an RPN/NRPN on a connected hardware or software device
requires three values to be specified.
Parameter
MIDI CC number
Minimum value
Maximum value
15
Value
07 (Volume)
38
93