Headroom

Apollo Volume Control

F-key volume control for Universal Audio interfaces, right from your keyboard.

macOS UA Apollo Menu bar

Coming soon One-time purchase · $14.99

Features

F10 / F11 / F12 Mute, volume down, volume up — the same keys macOS uses for the built-in speaker, now working with your Apollo interface.

Menu bar Lives quietly in the menu bar. No dock icon, no windows, no UI to get in the way of your work.

Non-invasive Communicates directly with UA Mixer Engine. Console keeps running, your signal chain is untouched, no drivers are replaced or patched.

Interfaces Works with all Apollo USB and Thunderbolt interfaces — Apollo Twin, Apollo x4, x6, x8, x16, and more.

Requirements

macOS Monterey 12.0 or later

Hardware Any Universal Audio Apollo interface

Software UA Mixer Engine (installed with UA Connect or Console)

Permission Accessibility access (for global keyboard shortcuts)

How it works

Apollo Volume Control communicates directly with UA Mixer Engine — the background process that powers Universal Audio's Console software. It reads and sets the monitor level through UA's local socket interface, running silently alongside whatever you already have open.

There's nothing to configure in Console, no drivers replaced, no UA software to quit. Your signal chain stays exactly as UA built it. This app simply adds the keyboard shortcuts for known, native macOS volume control.

Credits

The UA Mixer Engine communication protocol used in this app was originally reverse-engineered by Radu Varga in his open-source UA MIDI Control project. His work laid the groundwork that made this possible.

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Apollo Volume Control is an independent project and is not affiliated with, endorsed by, or supported by Universal Audio. Universal Audio, Apollo, and UA Mixer are trademarks of Universal Audio, Inc.