tpt-mixer

Simple, Modern Audio Router & Virtual Mixer.

Status: Early-stage / Pre-1.0 Ecosystem: TPT Solutions Open Source

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This project was formerly developed inside the tpt-audio repository under the crate names tpt-audio-core/tpt-audio-gui/tpt-audio-desktop/ tpt-audio-platform-*. It has been split out into its own repository as tpt-mixer; tpt-audio has since pivoted into an unrelated real-time audio engine library workspace (tpt-av-audio).

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What it is

The Problem: Voicemeeter (Windows) is complex and buggy. PulseAudio/JACK (Linux) setups can be a nightmare for average users wanting to route specific app audio to specific outputs/mics.

The TPT Solution: A visual, drag-and-drop audio routing matrix with zero-latency, low CPU usage, and per-app volume control.

Compatible on Windows, Linux, and Archon.

• Linux & Archon compatibility: integrates seamlessly as a frontend for PipeWire on Linux. On Archon, it hooks directly into the microkernel's zero-copy IPC audio server. Audio streams are routed as shared memory buffers, and apps are strictly prevented from capturing system audio unless explicitly granted the AUDIO_CAPTURE capability by the user.

Crates

Crate	Role
core	tpt-mixer-core — routing graph, backend trait, diagnostics, presets, i18n
gui	tpt-mixer-gui — eframe/egui routing matrix UI
desktop	tpt-mixer-desktop — the desktop binary (GUI, --control, --server headless modes)
platform-windows	WASAPI backend
platform-linux	PipeWire backend
platform-archon	Archon microkernel IPC backend

Quickstart

cargo build --workspace
cargo run -p tpt-mixer-desktop

See SIGNING.md for the Windows code-signing plan, WEBSITE.md for marketing copy, and packaging/linux for Flatpak/deb packaging notes.

License

Dual-licensed under MIT OR Apache-2.0.