Multi-Room Sync
Kalman filter clock synchronization with sample-level audio correction keeps every device playing in perfect unison.
SendSpin Player
Multi-room synchronized audio for Android devices, Android Auto, and Android TV.
What is SendSpin Player?
Section titled “What is SendSpin Player?”SendSpin Player connects to a SendSpin server or Music Assistant instance to deliver perfectly time-synchronized audio across multiple devices. Using clock synchronization and sample-accurate playback, every device in your home plays the same music at the exact same moment.
Key Features
Section titled “Key Features”Music Assistant
Browse artists, albums, playlists, and radio stations. Full-text search, queue management, and playlist creation.
Android Auto
Browse your library and control playback from your car’s infotainment system with voice search support.
Android TV
Full D-pad navigation with focus indicators, optimized for the 10-foot viewing experience.
Adaptive UI
Automatically adapts between phone, tablet, TV, and car head unit layouts.
Remote Access
Connect from outside your home network via WebRTC remote IDs or authenticated reverse proxies.
Background Playback
Keeps playing when the screen is off or the app is in the background, with lock screen and notification controls.
Open Source
Free and open source under the MIT License. Contributions welcome.
Requirements
Section titled “Requirements”- An Android device running Android 8.0 (API 26) or later
- A SendSpin server or Music Assistant instance on your network (or accessible remotely)
The app is available on the Google Play Store as a closed beta — join the testers group to get access.
Get Started
Section titled “Get Started”Ready to set up synchronized audio? Head to the installation guide to get started.