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Cacophony icon

Cacophony for Mac

Routes system audio to multiple AirPlay 2 speakers in sync.

By stonerl. Free and open source, MIT licence.

Get it with OpenDMG View source on GitHub

Cacophony at a glance

Version
1.0.0
Released
21 October 2026
Download size
1.8 MB
Works on
Apple silicon and Intel
Licence
MIT
Category
Audio and Music
Developer
stonerl
GitHub stars
7

About Cacophony

Stream your Mac's audio to multiple AirPlay 2 speakers (HomePods) in sync

How to install Cacophony on a Mac

  1. Get OpenDMG. It is a free app store for open source Mac apps. Download OpenDMG.
  2. Search for Cacophony and press Get. OpenDMG downloads version 1.0.0 from stonerl's own GitHub release.
  3. Open it. The download is checked against its SHA-256 fingerprint and its signature is checked on your Mac before it lands in Applications.

Updates to Cacophony show up in OpenDMG and install with one button. No account is needed.

Prefer to do it by hand? The developer's file is on GitHub: Cacophony-1.0.0.zip (1.8 MB).

What is new in Cacophony 1.0.0

Cacophony brings multi-room AirPlay 2 output to macOS. It installs a virtual CoreAudio device, captures system audio, and streams it to one or more AirPlay speakers in sync.

Cacophony routes the Mac’s system output as a whole, not individual apps. All audio using that output is mixed together.

This is the first stable release.

## Highlights

- **System-wide AirPlay 2 output** – sends the Mac’s current system audio to your selected AirPlay speakers.
- **Multi-room playback** – select multiple AirPlay 2 speakers at once.
- **Native speaker picker** – uses macOS’s AirPlay UI, including pairing and grouping.
- **Per-speaker volume** – adjust individual speaker levels from the menu bar panel.
- **Automatic output switching** – switches the system output when speakers are selected and restores the previous output when deselected.
- **Launch at Login** – enabled by default on first launch and configurable from the menu.
- **First-launch driver setup** – Cacophony prompts to install its audio driver on first launch.
- **App-only driver management** – install, update, or remove the driver from the app; no terminal commands.
- **Failed AirPlay selections recover cleanly** – stale routes and picker spinners no longer require restarting the app.
- **Native Liquid Glass app icon** with Light, Dark, and Tinted appearances.

## Installation

1. Download `Cacophony-1.0.0.zip`.
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