MusicSync is an iOS app that allows you to synchronize any kind of light entity accessible via Home Assistant with your music in real-time. It uses the microphone of your device to analyze the music and sync the lights accordingly.

With MusicSync, you can create a dynamic and immersive lighting experience for your music listening sessions. It's perfect for parties, events, or simply enjoying your favorite songs at home. The application is easy to use and highly customizable, giving you full control over your lighting effects.

NOTE: MusicSync is currently in beta and only available for iOS and iPadOS for now. An Android version is planned for the future.

No addons, custom integrations or additional configurations are required! All you need is a local Home Assistant instance with some lights and a long live access token (bearer token).

NOTE: The app is not yet available on the App Store.

The easiest way to get started is to join the TestFlight beta program.

1. Install TestFlight on the iOS or iPadOS device that you’ll use for testing.
2. Tap the public link on your device.
3. If you’re a new tester for the app, tap Accept.
4. Tap Install to install the app on your device.
5. If you’re a returning tester, tap Update or Open.

Alternatively, you can clone the repository and compile the app yourself using Xcode. Then you could run it on your device or simulator.

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The application is designed to synchronize a limited number of lights (1 - 3) simultaneously. This limitation arises from the high volume of requests the app sends to Home Assistant, which in turn sends requests to the lights.

The responsiveness of the lights can vary based on how Home Assistant interacts with them (how fast the API is). For instance, a single Zigbee light might respond quickly, but as more lights are added, the latency increases. This could potentially overload your Zigbee controller, causing requests to be stalled. Also Wi-Fi interference can cause delays in the communication between the lights and the controller.