If the output device is running fast, Shairport Sync will insert frames to keep time. To maintain the latency required for exact synchronisation, if the output device is running slow relative to the source, Shairport Sync will delete frames of audio to allow the device to keep up. This is done by monitoring the timestamps present in data coming from the audio source and the timing information from the audio system, e.g.
#Airplay audio for windows 10 full#
A latency of this length allows AirPlay players to correct for network delays, processing time variations and so on.Īs mentioned previously, Shairport Sync implements full audio synchronisation when used with alsa, sndio or PulseAudio systems. Recent versions of iTunes and forkedDaapd use a latency of just over 2.25 seconds. Most sources set a latency of two seconds. The latency to be used is specified by the audio source when it negotiates with Shairport Sync. The AirPlay protocol uses an agreed latency – the time difference, or delay, between the time represented by a sound sample's timestamp and the time it is actually played by the audio output device, typically a Digital to Audio Converter (DAC). This could perhaps be described as partial audio synchronisation, where synchronised audio is provided by Shairport Sync, but what happens to it in the subsequent processing chain, before it reaches the listener's ear, is outside the control of Shairport Sync.įor more about the motivation behind Shairport Sync, please see the wiki at. An older backend for PulseAudio called pulse does not support synchronisation and is deprecated.įor other use cases, Shairport Sync can provide synchronised audio output to a unix pipe or to standard output, or to audio systems that do not provide timing information. In that case, the pa backend can be used. While the timing information is not as accurate as that of alsa or sndio, it is often impractical to remove or disable PulseAudio.
/airplay-menu-bar-3747bc307c8744da97896f6a29168228.jpg "airplay audio for windows 10")
The default is 44,100 samples per second / 16 bits (you'll get a message in the logfile if there's a problem).Īlternatively, Shairport Sync works well with PulseAudio, a widely used sound server found on many desktop Linuxes. Shairport Sync must have direct access to the output device used, which must be a real sound card capable of working with 44,100, 88,200 or 176,400 samples per second, interleaved PCM stereo of 8, 16, 24 or 32 bits.
To accomplish this, Shairport Sync needs access to audio systems – such as alsa on Linux and sndio on FreeBSD – that provide very accurate timing information about output devices. Full audio synchronisation means that audio is played on the output device at exactly the time specified by the audio source. Shairport Sync offers full audio synchronisation, a feature of AirPlay that previous implementations do not provide. It does not support AirPlay video or photo streaming. Shairport Sync runs on Linux, FreeBSD and OpenBSD. In this way, synchronised multi-room audio is possible for players that support it, such as iTunes and the macOS Music app.
#Airplay audio for windows 10 tv#
Shairport Sync plays audio streamed from iTunes, iOS, Apple TV and macOS devices and AirPlay sources such as Quicktime Player and OwnTone, among others.Īudio played by a Shairport Sync-powered device stays synchronised with the source and hence with similar devices playing the same source. Switch to the development branch for a version with limited AirPlay 2 functionality. Shairport Sync is an AirPlay 1 audio player.
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