AudioRelay

You are in the middle of a great track, but the sound is trapped in your headphones. You want to share the bassline through your car speakers or pump it through your home stereo, but Bluetooth lag is ruining the timing. AudioRelay solves this by turning your Android device into a high-fidelity wireless audio transmitter. Instead of fumbling with cables or dealing with compressed Bluetooth codecs, you can send your phone’s audio directly to any computer on your local network. The app captures the system audio stream in real time and streams it over Wi-Fi with sub-second latency, making it a functional tool for DJs, late-night movie watchers, and anyone who wants to untether their listening experience.

Core Audio Streaming Tools

AudioRelay operates on a straightforward client-server model. The Android app acts as the audio source, while a lightweight server application runs on your Windows, macOS, or Linux computer. Once both devices are connected to the same local network, the phone streams any sound it produces—from music players, game audio, podcast apps, or system notifications—directly to the computer’s output device. The setup requires no cloud accounts or internet routing; all data stays within your private network. This design ensures that the stream remains stable even when your internet connection is slow or offline.

• Real-time system audio capture
• Low-latency Wi-Fi streaming
• Cross-platform server support

The app includes a built-in audio buffer control, allowing you to adjust the trade-off between latency and stability. For music listening, a smaller buffer keeps the sound in sync with visuals, while a larger buffer prevents dropouts on congested networks. A simple toggle switches between mono and stereo output, and a volume normalization feature prevents sudden loud spikes when switching apps. The interface displays the current connection quality in real time, showing packet loss percentage and bitrate, so you can diagnose network issues without guesswork.

Key Technical Advantages

AudioRelay distinguishes itself from Bluetooth solutions by maintaining CD-quality audio fidelity. The stream uses a configurable bitrate up to 320 kbps, preserving the dynamic range of lossy music files. The app also supports multi-room audio synchronization: you can run the server on several computers simultaneously, each receiving the same audio stream with minimal drift. This is useful for filling a house with synchronized sound or for running a private karaoke session where the lyrics appear on one screen while the audio plays through another.

• Configurable bitrate up to 320 kbps
• Multi-room synchronized streaming
• No cloud dependency or accounts

The server application runs as a background process, so it does not interrupt your workflow. You can control the stream from the Android app itself: pause, mute, or change the output device on the computer without touching the keyboard. A system tray icon on the computer shows connection status and allows manual server restarts. The app also includes a dark theme that respects system-wide dark mode settings, reducing eye strain during nighttime use.

Optimized for Real-World Use

AudioRelay handles edge cases that typical streaming apps ignore. If the computer goes to sleep, the app automatically pauses the stream and resumes it when the computer wakes. If you leave the Wi-Fi range, the stream pauses and attempts to reconnect for up to 30 seconds. The app also includes a background audio focus handler: if you receive a phone call, the stream automatically mutes and resumes after the call ends. For advanced users, the app exposes a simple command-line interface on the server side, enabling integration with automation tools like Tasker or Home Assistant.

• Automatic sleep and wake handling
• Call-aware audio muting
• Command-line server control

Download the App and Start Streaming

Consider downloading AudioRelay if you want to break free from headphone cables without sacrificing audio quality. The app is particularly useful for car audio systems that lack Bluetooth, for desktop computers without internal speakers, or for streaming game audio to a soundbar while keeping voice chat on your headset. The setup takes under two minutes: install the server on your computer, install the app on your phone, and connect to the same Wi-Fi network. No pairing, no codecs, no compromises.

Technical Disclaimer

Heads up: you will need a stable Wi-Fi connection for the stream to work reliably. The app does not support cellular streaming or internet-based remote access out of the box. Some advanced features, such as multi-room synchronization and the command-line interface, require the desktop server application, which is available as a free download from the developer’s website. The app itself is free to install, with an optional in-app purchase that removes the small “AudioRelay” watermark from the server interface.