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Ableton AutoFilter: MIDI CC, NRPN and OSC map

The Ableton AutoFilter as named OSC addresses — 26 CC — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.

Device Ableton AutoFilter
Vendor Ableton
OSC prefix /autofilter
Source 🎛️ Derived from an Electra One community preset
Revision per Electra preset
Upstream electra-preset
Driver file devices/ableton/autofilter.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/ableton/autofilter.json --out-port <N> --in-port <M>

Then send OSC to 127.0.0.1:7777, for example:

osc-bridge osc-send /autofilter/amount 635

From Claude or any MCP client, the osc-bridge mcp server exposes this driver as autofilter: ask “what can the Ableton AutoFilter do?” and it reads this map with list_routes. See the MCP guide.

MIDI CC and NRPN parameters (26)

OSC address CC NRPN (MSB/LSB) Range Nature Section
/autofilter/amount 14 / 46 -1270–1270 continuous
/autofilter/attack 1 / 33 0–16383 continuous
/autofilter/release 2 / 34 0–16383 continuous
/autofilter/type 17 0–127 continuous
/autofilter/circuit 16 0–127 continuous
/autofilter/slope 25 0–127 continuous
/autofilter/frequency 3 / 35 0–16383 continuous
/autofilter/resonance 10 / 42 0–1250 continuous
/autofilter/morph 23 0–100 continuous
/autofilter/lfo_amount 4 / 36 0–300 continuous
/autofilter/lfo_waveform 22 0–127 continuous
/autofilter/lfo_frequency 5 / 37 0–16383 continuous
/autofilter/sync_freq 21 0–127 continuous
/autofilter/lfo_quantize_o 18 0–127 continuous
/autofilter/lfo_quantize_r 19 0–127 continuous
/autofilter/lfo_phase 7 / 39 0–360 continuous
/autofilter/lfo_stereo_mod 20 0–127 continuous
/autofilter/s_c_on 24 0–127 continuous
/autofilter/gain 11 / 43 0–16383 continuous
/autofilter/mix 12 / 44 0–1000 continuous
/autofilter/device_on 13 0–127 continuous
/autofilter/filter_circuit 15 0–127 continuous
/autofilter/drive 0 / 32 0–16383 continuous
/autofilter/lfo_sync_rate 9 / 41 0–16383 continuous
/autofilter/lfo_spin 8 / 40 0–500 continuous
/autofilter/lfo_offset 6 / 38 0–360 continuous

Performance MIDI

Notes, pitch bend and any CC are also available: /autofilter/note/on <note> <velocity>, /autofilter/cc/<number> <value>, /autofilter/pitchbend <0-16383>, /autofilter/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.