Red Panda Radius — MIDI Editor & CC Reference
MIDI control for the Red Panda Radius ring modulator and frequency shifter — carrier frequency, pitch tracking, 8-step modulator and 100 presets.
Explore the Radius controls in your browser and connect compatible MIDI hardware to send settings to your pedal. The reference below shows the controls mapped in Nitelite; available functions depend on the pedal and firmware. The default MIDI channel in Nitelite is 1. Browser MIDI control works in Chrome, Edge, Opera, or Brave — no install required.
Knobs
| Control | MIDI CC | Description |
|---|---|---|
| MIX | CC 14 | Dry/wet mix. Adjusts the wet/dry blend, from 100% dry to 100% wet. |
| TRACK | CC 18 | Carrier frequency TRACK input pitch (monophonic): -100% to +100%, off at center (64). Center frequency is C4. At +100% the sidebands move up and down harmonically; negative tracking makes the sidebands farther apart at lower pitches. |
| FREQ | CC 16 | Carrier oscillator frequency (0.65 - 4,000 Hz across the three ranges). Increasing the carrier frequency spreads out the upper and lower sidebands; decreasing it moves them towards the input signal. |
| RING MOD / FREQ SHIFT | CC 15 | Adjusts the balance between upper and lower harmonics and adds feedback. Morphs the output from frequency shift down (about 32) through ring modulation (64) to frequency shift up (about 96); below 32 and above 96 adds feedback (FDBK). |
| RATE | CC 22 | Modulation rate — adjusts the LFO speed (0.1 - 55 Hz). With the envelope follower selected, RATE controls the release time. With X- / X+ it controls the speed of the sweep. |
| AMOUNT | CC 24 | Modulation depth — adjusts the range of carrier frequency changes. With X- / X+ it controls the width of the sweep, up to +/-3 octaves around the FREQ setting. Set to maximum to play a step modulator sequence at full scale. |
| STEP 1 | CC 70 | Step modulator step 1 level. |
| STEP 2 | CC 71 | Step modulator step 2 level. |
| STEP 3 | CC 72 | Step modulator step 3 level. |
| STEP 4 | CC 73 | Step modulator step 4 level. |
| STEP 5 | CC 74 | Step modulator step 5 level. |
| STEP 6 | CC 75 | Step modulator step 6 level. |
| STEP 7 | CC 76 | Step modulator step 7 level. |
| STEP 8 | CC 77 | Step modulator step 8 level. |
| LAST STEP | CC 78 | Step mod last step (1-8) — sets the length of the sequence. Can be assigned to the expression pedal to change sequence length dynamically. |
Switches
| Switch | MIDI CC | Positions |
|---|---|---|
| WAVE | CC 85 | Triangle / Square / Random / Random 2 / Step Mod / X- / X+ / Env Follower |
| RANGE | CC 87 | Low / High / Stepped |
| SHIFT 2X | CC 86 | Down (lower 2X) / Off / Up (upper 2X) |
| STEP / RAMP | CC 79 | Step / Ramp |
| NOTE DIVISION | CC 109 | Off / 8 measures / 7 measures / 6 measures / 5 measures / 4 measures / 3 measures / 2 measures / 2 measure triplet / Dotted whole / Whole / Whole triplet / Dotted half / Half / Half triplet / Dotted quarter / Quarter / Quarter triplet / Dotted eighth / Eighth / Eighth triplet / Dotted 16th / 16th / 16th triplet / Dotted 32nd / 32nd / 32nd triplet |
| PLAY CARRIER BY MIDI NOTE | CC 111 | Off / On / Use global setting |
Footswitches
- AUX — CC 80
- ON — CC 88
Special MIDI Functions
- Tap Tempo — CC 89
- Expression — CC 4
- Mod Envelope Trigger — CC 82. Turns modulation envelope triggering on (64-127) or off (0-63). When on, the modulation waveform is retriggered by your playing; the triangle and square LFOs play in one-shot mode. Not available with Random 2 or the envelope follower.
- Receive MIDI Clock (global) — CC 110. Turns MIDI clock reception on (64-127) or off (0-63). This is a global setting and is remembered when power is turned off. To disable clock sync for a single preset, set its note division to Off.
- ON Footswitch (momentary) — CC 81. Emulates a press of the ON footswitch (64-127 press, 0-63 release). Holding the ON footswitch from bypass for 400 ms or more gives momentary-on behaviour.
Hardware Presets
Radius has 100 hardware preset slots, recalled using MIDI Program Change. Saving requires an action on the pedal; follow the hardware preset manager instructions.