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Oxygen 88 User Guide 33
Assigning RPN/NRPN messages to a Knob, Slider, Button, or Pedal
Oxygen 88 allows transmission of all three necessary MIDI CC messages for RPNs and NRPN's by simply moving
a knob or slider or by pressing a button or 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 (see "10: MIDI Messages Defined" on page 34 for more
information).
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 to control an RPN/NRPN on a connected hardware or software device requires four values to be
specified.
The following example assigns a manufacturer specific NRPN coarse (134) message to a control on Oxygen 88:
1. Select a Knob or Slider as described earlier in this guide.
2. Press the Advanced button.
3. Press the Control Assign key.
4. Enter 134 (NRPN Coarse) using the number keys (see Appendices B and F).
5. Press the Enter key.
6. Press the Advanced button.
7. Press the Data 1 key.
8. Enter 6 using the number keys (or the MIDI CC number for value changes as required by your device).
9. Press the Advanced button.
10. Press the Data 2 key.
11. Enter the value to be transmitted via MIDI CC 98 (LSB) using the number keys.
12. Press the Enter key.
13. Press the Advanced button.
14. Press the Data 3 key.
15. Enter the value to be transmitted via MIDI CC 99 (MSB) using the number keys.
16. Press the Enter key.
See "10: MIDI Messages Defined" on page 34 for an in-depth explanation of RPN/NRPN MIDI messages and their
usage.
Key Parameter Value
Control Assign NRPN Coarse 134
Data 1 (example) CC for Value Change 6
Data 2 (example) CC 98 / LSB 51
Data 3 (example) CC 99 / MSB 3