Neural DSP Quad Cortex: MIDI CC, NRPN and OSC map¶
The Neural DSP Quad Cortex as named OSC addresses — 31 CC — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.
| Device | Neural DSP Quad Cortex |
|---|---|
| Vendor | Neural DSP |
| OSC prefix | /quad_cortex |
| Source | 📦 Derived from MIDI Guide (community CC/NRPN data) |
| Firmware | unknown |
| Revision | per pencilresearch canonical CSV |
| Upstream | pencilresearch |
| Data licence | CC-BY-SA-4.0 — MIDI Guide (https://midi.guide) by Pencil Research and contributors |
| Driver file | devices/neural-dsp/quad_cortex.pencilresearch.fw-unknown.json |
Not tested on the device yet
This driver comes from documentation or community data and has not been checked on real hardware. If you own one, a quick test and a pull request promoting it helps everyone — see CONTRIBUTING.
How do you control it?¶
Find the MIDI ports, then start the bridge with this driver:
osc-bridge detect # prints the ready-to-run line for what is plugged in
osc-bridge run --device devices/neural-dsp/quad_cortex.pencilresearch.fw-unknown.json --out-port <N> --in-port <M>
Then send OSC to 127.0.0.1:7777, for example:
From Claude or any MCP client, the osc-bridge mcp server exposes this driver as quad_cortex: ask “what can the Neural DSP Quad Cortex do?” and it reads this map with list_routes. See the MCP guide.
MIDI CC and NRPN parameters (31)¶
| OSC address | CC | NRPN (MSB/LSB) | Range | Nature | Section |
|---|---|---|---|---|---|
/quad_cortex/banks_and_presets/bank_select_msb |
0 | 0–1 | switch | Banks and presets | |
/quad_cortex/banks_and_presets/bank_select_lsb |
32 | 0–127 | continuous | Banks and presets | |
/quad_cortex/pedals/expression_pedal_1 |
1 | 0–127 | continuous | Pedals | |
/quad_cortex/pedals/expression_pedal_2 |
2 | 0–127 | continuous | Pedals | |
/quad_cortex/footswitches/footswitch_a |
35 | 0–127 | continuous | Footswitches | |
/quad_cortex/footswitches/footswitch_b |
36 | 0–127 | continuous | Footswitches | |
/quad_cortex/footswitches/footswitch_c |
37 | 0–127 | continuous | Footswitches | |
/quad_cortex/footswitches/footswitch_d |
38 | 0–127 | continuous | Footswitches | |
/quad_cortex/footswitches/footswitch_e |
39 | 0–127 | continuous | Footswitches | |
/quad_cortex/footswitches/footswitch_f |
40 | 0–127 | continuous | Footswitches | |
/quad_cortex/footswitches/footswitch_g |
41 | 0–127 | continuous | Footswitches | |
/quad_cortex/footswitches/footswitch_h |
42 | 0–127 | continuous | Footswitches | |
/quad_cortex/modes_and_scenes/scene_select |
43 | 0–7 | continuous | Modes and scenes | |
/quad_cortex/modes_and_scenes/mode_select |
47 | 0–2 | continuous | Modes and scenes | |
/quad_cortex/global_controls/tempo_bpm |
44 | 0–127 | continuous | Global controls | |
/quad_cortex/global_controls/tuner_on_off |
45 | 0–127 | continuous | Global controls | |
/quad_cortex/global_controls/gig_view_open_close |
46 | 0–127 | continuous | Global controls | |
/quad_cortex/looper/open_close_looper_ui |
48 | 64–127 | continuous | Looper | |
/quad_cortex/looper/duplicate_stop_duplicate |
49 | 64–127 | continuous | Looper | |
/quad_cortex/looper/one_shot_enable_disable |
50 | 64–127 | continuous | Looper | |
/quad_cortex/looper/half_speed_enable_disable |
51 | 64–127 | continuous | Looper | |
/quad_cortex/looper/punch_in_out |
52 | 0–127 | continuous | Looper | |
/quad_cortex/looper/record_overdub_stop |
53 | 0–127 | continuous | Looper | |
/quad_cortex/looper/play_stop |
54 | 64–127 | continuous | Looper | |
/quad_cortex/looper/reverse_enable_disable |
55 | 64–127 | continuous | Looper | |
/quad_cortex/looper/undo_redo |
56 | 64–127 | continuous | Looper | |
/quad_cortex/looper/duplicate_mode |
57 | 0–1 | switch | Looper | |
/quad_cortex/looper/quantize |
58 | 0–9 | continuous | Looper | |
/quad_cortex/looper/midi_clock_start |
59 | 0–1 | switch | Looper | |
/quad_cortex/looper/perform_params_mode |
60 | 0–1 | switch | Looper | |
/quad_cortex/looper/routing_mode |
61 | 0–13 | continuous | Looper |
Performance MIDI¶
Notes, pitch bend and any CC are also available: /quad_cortex/note/on <note> <velocity>, /quad_cortex/cc/<number> <value>, /quad_cortex/pitchbend <0-16383>, /quad_cortex/program_change <n>.
Limitations¶
CC/NRPN only. SysEx (preset management, display control, bulk dump/load, vendor-proprietary opcodes) is NOT covered by pencilresearch. To extend this device with SysEx, sniff the vendor editor, add `sysex.header/footer` + `commands` blocks, and use `update_device.md` PR template.