Termixer (TUI DJ Mixer)

Hacker News Top 07/31/26, 06:28 PM Tools

tui dj-mixer rust audio tidalcycles terminal open-source

Summary

Termixer is a terminal-based DJ mixer written in Rust that integrates with TidalCycles, MPV, and SuperCollider for live audio mixing with EQ, crossfade, and sample pads.

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Cached at: 07/31/26, 07:59 PM

l00sed/termixer

Source: https://github.com/l00sed/termixer

termixer

A terminal-based DJ mixer for live performance with TidalCycles. Built in Rust with ratatui, it provides real-time EQ, filtering, crossfading, and sample pads for mixing audio from MPV and SuperCollider.

Features

Dual-deck mixer with per-channel fader, pan, 3-band EQ, LPF/HPF
DJ center with crossfader, cue mix, headphone/booth outputs
Sample pads — 4x4 grid with sequencer
Auto-discovery of MPV sockets, SuperCollider, PulseAudio, PipeWire, JACK sources
SuperCollider integration — custom SynthDefs for mixer channel processing
Vim navigation — hjkl throughout, 3-level mode system

Prerequisites

Rust
Nerd Fonts — required for icons (rewind, fast-forward, etc.)
MPV — media playback with IPC socket support
SuperCollider (optional) — for TidalCycles integration

Installation

From crates.io

cargo install termixer

From source

git clone https://github.com/l00sed/termixer.git
cd termixer
cargo install --path .

Build

cargo build              # debug
cargo build --release    # optimized with LTO

Usage

# Auto-discover audio sources
cargo run

# Specify MPV sources explicitly
cargo run -- -s "Deck A" /tmp/mpv-a.sock -s "Deck B" /tmp/mpv-b.sock

# With music and samples directories
cargo run -- -m ~/Music -S ~/Samples

Starting MPV with IPC

mpv --input-ipc-server=/tmp/mpv-music.sock music.mp3

CLI Options

Flag	Description
`-s, --source NAME SOCKET`	Add an audio source (MPV IPC socket)
`-m, --music-dir PATH`	Directory for audio file browser
`-S, --samples-dir PATH`	Directory for sample pad files
`-d, --discover`	Auto-discover audio sources (default)
`-h, --help`	Show help

Keyboard Controls

Navigation

Key	Action
`Tab` / `h` / `l`	Switch between panes (Deck A, DJ, Deck B, Master)
`Enter`	Enter control select mode
`Esc`	Go back one level
`?`	Toggle help overlay
`q`	Quit

Controls

Key	Action
`j` / `k`	Navigate controls up/down
`h` / `l`	Adjust value / toggle EQ kill switch
`J` / `K`	Coarse adjustment (0.2)
`+` / `-`	Fine adjustment (0.05)
`m` / `s`	Toggle mute / solo
`c`	Center pan or crossfader
`0`	Reset control to default

Source & Sample Pads

Key	Action
`A`	Open source picker for Deck A
`B`	Open source picker for Deck B
`P`	Toggle sample pads mode

License

MIT