mixosc

Rust OSC client for Behringer X32-family mixers.

mixosc currently contains two pieces:

• A desktop GUI built with iced that discovers an X32 on the local network and exposes a mixer-style control surface.
• A Rust library for X32 UDP/OSC discovery, connection probing, state loading, state updates, and meter parsing.

Current GUI behavior

The application is no longer just a connection monitor. When a mixer is reachable, it loads and displays:

• CH 01-32
• AUX 01-08
• BUS 01-12
• FX 01-08
• MTX 01-06
• DCA 1-8
• Main LR

For the strips that support them, the UI shows and updates in real time:

• Name and scribble-strip color
• Input gain or trim
• Sends
• Pan
• Fader level
• Input and main/matrix meters
• Mute
• Solo

The app subscribes to live OSC updates with /xremote and meter subscriptions, so local changes on the mixer are reflected back into the UI.

What is implemented per strip type

• Channels and aux inputs: gain/trim, sends to buses 1-16, pan, fader, mute, solo, color, name, meters
• FX returns: sends to buses 1-16, pan, fader, mute, solo, color, name
• Buses: sends to matrices 1-6, pan, fader, mute, solo, color, name
• Matrices: fader, mute, color, name, matrix meter
• DCAs: fader, mute, color, name
• Main LR: fader, mute, color, stereo meter

Implementation details from the current code:

• Gain uses headamp control where available and trim otherwise.
• Channel 17-32 use trim gain; earlier channels and supported aux inputs can use headamp gain.
• Gain is not exposed for buses, FX returns, matrices, or DCAs.
• Pan is not exposed for matrices or DCAs.
• DCA and matrix solo are not sent to the mixer.
• Master solo is only a local UI toggle right now; it is not sent to the mixer.
• Passing an invalid CLI argument causes a panic because the first positional argument is always parsed as host[:port].

Running

Automatic discovery on the local network:

cargo run

Connect to a specific mixer:

cargo run -- 192.168.1.62

You can also include a custom port:

cargo run -- 192.168.1.62:10023

Or use the environment variable:

MIXOSC_MIXER_ADDR=192.168.1.62 cargo run

The default X32 port is 10023.

Library surface

The crate exports OSC/X32 helpers from src/x32.rs, including:

• Discovery and connectivity: DiscoveryProbe, ConnectionProbe, DiscoveredMixer, ProbeOutcome
• Strip state loading and control: FaderBankProbe, PanBankProbe, GainBankProbe, SendBankProbe, MuteBankProbe, SoloBankProbe, NameBankProbe, ColorBankProbe
• Meter handling: batchsubscribe_meter_request, renew_request, parse_input_meter_packet, parse_main_meter_packet
• Console update parsing: parse_console_update, ConsoleUpdate
• Address parsing and constants: parse_target, X32_DEFAULT_PORT, X32_BROADCAST_ADDR, XREMOTE_REQUEST

Development

Build check:

cargo check

This repository currently has a single binary entry point in src/main.rs and a reusable library in src/lib.rs.