Oberheim OB-X / GForce: MIDI CC, NRPN and OSC map¶
The Oberheim OB-X / GForce as named OSC addresses — 61 CC — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.
| Device | Oberheim OB-X / GForce |
|---|---|
| Vendor | Oberheim |
| OSC prefix | /ob_x_gforce |
| Source | 🎛️ Derived from an Electra One community preset |
| Revision | per Electra preset |
| Upstream | electra-preset |
| Driver file | devices/oberheim/ob_x_gforce.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/oberheim/ob_x_gforce.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 ob_x_gforce: ask “what can the Oberheim OB-X / GForce do?” and it reads this map with list_routes. See the MCP guide.
MIDI CC and NRPN parameters (61)¶
| OSC address | CC | NRPN (MSB/LSB) | Range | Nature | Section |
|---|---|---|---|---|---|
/ob_x_gforce/frequency |
77 | 0–127 | continuous | ||
/ob_x_gforce/pw |
24 | 0–127 | continuous | ||
/ob_x_gforce/frequency |
56 | 0–127 | continuous | ||
/ob_x_gforce/pw |
27 | 0–127 | continuous | ||
/ob_x_gforce/x_mod |
30 | 0–127 | continuous | ||
/ob_x_gforce/vintage |
53 | 0–127 | continuous | ||
/ob_x_gforce/waveform |
86 | 0–127 | continuous | ||
/ob_x_gforce/waveform |
89 | 0–127 | continuous | ||
/ob_x_gforce/detune |
55 | 0–127 | continuous | ||
/ob_x_gforce/sync |
29 | 0–127 | continuous | ||
/ob_x_gforce/volume |
111 | 0–127 | continuous | ||
/ob_x_gforce/resonance |
42 | 0–127 | continuous | ||
/ob_x_gforce/key_track |
46 | 0–127 | continuous | ||
/ob_x_gforce/voice |
57 | 0–127 | continuous | ||
/ob_x_gforce/unison |
60 | 0–127 | continuous | ||
/ob_x_gforce/unison_detune |
54 | 0–127 | continuous | ||
/ob_x_gforce/voices |
59 | 0–127 | continuous | ||
/ob_x_gforce/cutoff |
74 | 0–127 | continuous | ||
/ob_x_gforce/env_amount |
43 | 0–127 | continuous | ||
/ob_x_gforce/glide |
5 | 0–127 | continuous | ||
/ob_x_gforce/osc1 |
75 | 0–16 | continuous | ||
/ob_x_gforce/osc2 |
76 | 0–127 | continuous | ||
/ob_x_gforce/noise |
110 | 0–127 | continuous | ||
/ob_x_gforce/attack |
73 | 0–127 | continuous | ||
/ob_x_gforce/decay |
36 | 0–127 | continuous | ||
/ob_x_gforce/sustain |
37 | 0–127 | continuous | ||
/ob_x_gforce/release |
72 | 0–127 | continuous | ||
/ob_x_gforce/rate |
58 | 0–127 | continuous | ||
/ob_x_gforce/depth |
28 | 0–127 | continuous | ||
/ob_x_gforce/attack |
38 | 0–127 | continuous | ||
/ob_x_gforce/decay |
39 | 0–127 | continuous | ||
/ob_x_gforce/sustain |
40 | 0–127 | continuous | ||
/ob_x_gforce/release |
41 | 0–127 | continuous | ||
/ob_x_gforce/sync |
33 | 0–127 | continuous | ||
/ob_x_gforce/shape |
85 | 0–127 | continuous | ||
/ob_x_gforce/shape |
15 | 0–127 | continuous | ||
/ob_x_gforce/amount |
19 | 0–127 | continuous | ||
/ob_x_gforce/osc1 |
20 | 0–127 | continuous | ||
/ob_x_gforce/osc2 |
21 | 0–127 | continuous | ||
/ob_x_gforce/filter |
23 | 0–127 | continuous | ||
/ob_x_gforce/lfo_rate |
14 | 0–127 | continuous | ||
/ob_x_gforce/amount |
80 | 0–127 | continuous | ||
/ob_x_gforce/pwm1 |
81 | 0–127 | continuous | ||
/ob_x_gforce/pwm2 |
82 | 0–127 | continuous | ||
/ob_x_gforce/volume |
84 | 0–127 | continuous | ||
/ob_x_gforce/intro_rate |
9 | 0–127 | continuous | ||
/ob_x_gforce/retrig |
45 | 0–127 | continuous | ||
/ob_x_gforce/phase |
44 | 0–127 | continuous | ||
/ob_x_gforce/smooth |
47 | 0–127 | continuous | ||
/ob_x_gforce/velocity |
31 | 0–127 | continuous | ||
/ob_x_gforce/aftertouch |
34 | 0–127 | continuous | ||
/ob_x_gforce/arp_on_off |
10 | 0–127 | continuous | ||
/ob_x_gforce/note |
11 | 0–127 | continuous | ||
/ob_x_gforce/rate |
12 | 0–127 | continuous | ||
/ob_x_gforce/list |
13 | 0–127 | continuous | ||
/ob_x_gforce/octave |
16 | 0–127 | continuous | ||
/ob_x_gforce/swing |
17 | 0–127 | continuous | ||
/ob_x_gforce/hold |
18 | 0–127 | continuous | ||
/ob_x_gforce/chord |
22 | 0–127 | continuous | ||
/ob_x_gforce/mode |
25 | 0–127 | continuous | ||
/ob_x_gforce/preset |
26 | 0–127 | continuous |
Performance MIDI¶
Notes, pitch bend and any CC are also available: /ob_x_gforce/note/on <note> <velocity>, /ob_x_gforce/cc/<number> <value>, /ob_x_gforce/pitchbend <0-16383>, /ob_x_gforce/program_change <n>.
Limitations¶
Imported from an Electra One community preset. The mapping reflects the preset author's editorial choices: parameter naming, ranges, and which params are exposed. Untested on hardware in this repo.