The best open source alternative to AudioRelay is Audio Share. If that doesn't suit you, our users have ranked more than 10 alternatives to AudioRelay and ten of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to AudioRelay are SonoBus, PairPods, Snapcast and Stream What You Hear.
Audio Share can share Windows/Linux computer's audio to Android phone over network, so your phone becomes the speaker of computer. (You needn't buy a new speaker😄.).
SonoBus is an easy to use application for streaming high-quality, low-latency peer-to-peer audio between devices over the internet or a local network.
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Snapcast enhances audio players, creating a multiroom solution with synchronized playback via client-server architecture. It allows simultaneous audio feeds and client grouping, integrating well with MPD and Mopidy for perfect audio distribution.
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Stream What You Hear (SWYH) is a Windows application to broadcast the sound of your computer (ie: “what you hear”) on an UPnP/DLNA device such as TVs, amps, network receivers, game consoles, etc...
Audio Source forwards Android microphone audio input to the PulseAudio daemon through ADB, so you can use your Android device as a USB microphone.
An application for streaming audio over a local network. It allows you to stream your device's internal audio to any other device on the network. Developed in Kotlin and Jetpack Compose.
System-wide AirPlay 2 output for macOS. Cacophony installs a virtual CoreAudio output device named Cacophony and streams everything played through it to one or more AirPlay 2 speakers, in sync.
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