This is to facilitate situations where something has to be done when the volume changes, e.g. Shairport Sync will work with PulseAudio, which is installed in many desktop Linuxes. It does not account for retransmitted packets. Successfully merging a pull request may close this issue. Set the wait_for_completion value to "yes" for Shairport Sync to wait until the respective commands have been completed before continuing. ckdo's fork is a proof of concept, that's all. You specify it using the general group setting run_this_when_volume_changes. To help get the most from it, consider using the volume_range_db setting in the general group to instruct Shairport Sync to use the top of the DAC mixer's declared range. So, another thing Shairport Sync has to do is to synchronize the source clock and the local clock, and it does this usually to within a fraction of a millisecond, using a variant of NTP synchronisation protocols. Apple announced AirPlay 2 in 2017 and extented it to support multi-room audio with iOS 11.4 in May 2018. There is a problem here, I have already informed you before... Yeah try https://github.com/ckdo/airplay2-receiver, that has the recent fixes. Stuffing is not done for partial audio synchronisation – the audio samples are simply presented at exactly the right time to the next stage in the processing chain. The text was updated successfully, but these errors were encountered: That'll be awsome! You signed in with another tab or window. and (b) specify the backend you wish to use - alsa for the ALSA backend, or pa for the PulseAudio back end. Packages are available on recent versions of Debian, Ubuntu, Arch, OpenWrt and possibly more: Ubuntu: A shairport-sync installer package is available for Ubuntu. It runs well on the Raspberry Pi Zero W with a suitable USB or I2S card. AirPlay 1 had long been cracked, so there are already apps like shairport-sync which allows iTunes to send music to non-supported speakers via a … AirPlay and AirPlay 2 are both supported. I know the biggest issue with making an Airplay 2 shairport equivalent was waiting on the new protocol to be cracked. If nothing happens, download the GitHub extension for Visual Studio and try again. I've set up the iOS 11 beta on my iPhone, can confirm it's not allowing multiroom audio playback on two shairport-sync RPis I have running. Learn more. Sync is allowed to drift by the general drift_tolerance_in_seconds setting — (± 0.002 seconds) by default — before a correction will be made. Shairport Sync uses latencies supplied by the source, typically either 2 seconds or just over 2.25 seconds. I don’t expect anyone to enforce that, but better to be safe than sorry. Is there anything interesting to report? This setting has the advantage of a dedicated Airplay Player on each device, that can be sychronized with iTunes to a multiroom setup. The most obvious setting is the name of the output device which you can set using the output_device tag. This branch is 3817 commits ahead, 70 commits behind abrasive:master. Output frame rates of 44,100, 88,200, 176,000 or 352,000 frames per second. With HomeBrew installed, Shairport Sync can be installed using the command: Note that the installation uses the libao library and so synchronisation is not available — playback glitches will occur occasionally, when the ao system's buffers overflow or underflow. Step 2. November 2020 by Fab. Shairport Sync may already be available as a package in your Linux distribution (search for shairport-sync – the package named shairport is a different program). Isn't that what shairport-sync already does? The software works as advertised. You are going to need a bit of time to complete this step ~30 minutes should do it – so make sure you have that available before proceeding. If you are using PulseAudio in the standard "user" mode, you can not start Shairport Sync automatically at boot time – it must be started when the user logs in to a GUI session. It looks like Airplay 2 may be incorporating some HomeKit functionality around the iOS on-screen controls, giving the ability to add devices to a playback group, control volume, etc. As mentioned previously, Shairport Sync implements full audio synchronisation when used with alsa, sndio or PulseAudio systems. 'type': 'updateMRSupportedCommands'} I hadn’t noticed that before, but it explains a few things, now that I think about it. 'kCommandInfoEnabledKey': True}]}, Note that, at present, the Shairport Sync Docker image does not work on a Mac, due to limitations in the Docker system. I think it is right to honour the NDA, TBH, and thanks for the suggestion that it's not necessary to rush... Guys, that all looks quite interesting. More documentation is available in the READMEfile. Various GUI tools exist to enable you to build a Startup Application. Multiroom has been introduced in Airplay 2 I'm going to create some systemd services and see how well it works when multiple instances are running and pointed to multiple output devices. Anyway, that’s all to say that I landed on shairport-sync for now. If that doesn't say we all made the right choice using pi's and like, all using your brilliant software Mike; I'm not sure I'll ever need AirPlay 2 unless it support wireless hi rez audio! That'll need ability to receive multiple streams. Thanks. The following alsa group settings are very important for maximum performance. POST /command As mentioned, this isn't a production tool at all, but simply a proof of concept demonstrating how AP2 pairing, authentication, command control etc. By adding self.server.hap = None to the end of the do_TEARDOWN routine, a new hap() object is created on reconnect and the reconnect succeeds. Multiroom isn’t enabled yet – it will be in a later beta as @adamcollier1 mentioned above. Left uncorrected, even a drift this small between two audio outputs will be audible after a short time. This was one major difference between the initial connection and a reconnection. If it goes below about 2,000 then it's an indication that the processor can't really keep up. As an alternative to sending metadata to a pipe, the socket_address and socket_port tags may be set in the metadata group to cause Shairport Sync to broadcast UDP packets containing the track metadata. Shairport Sync is an AirPlay audio player – it plays audio streamed from iTunes, iOS, Apple TV and macOS devices and AirPlay sources such as Quicktime Player and ForkedDaapd, among others.. Shairport Sync runs on Ubuntu, OpenWrt, Debian, Arch Linux, Fedora, FreeBSD and OpenBSD inside VMWare Fusion on a Mac, but synchronisation in inaccurate — possibly because the sound card is being emulated. \( -name \*.cpp -or -name \*.h -or -name \*.c \) -exec clang-f…, Add automatic bit depth and speed selection for alsa devices. Alternatively, with libsoxr support, Shairport Sync can resample the audio feed to ensure the output device can keep up. 01 $ shairport -a 'Shairport Test' 02 Starting Shairport 1.1.1-22-gd679d19 03 Listening for connections. Maybe someone can use this as justification to grab a couple of HomePods. {'kCommandInfoCommandKey': 10, 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). If your audio device has a mixer that can be use to control the volume, then Shairport Sync can use it to give instant response to volume and mute commands and it can offload some work from the processor. is a software player that supports Apple Airplay: direct playback of music from iPhone; direct playback of music from iPad; direct playback of music from iTunes; With Shairport, all music can be streamed directly to the Raspberry Pi 2 or the ODROID. I’ll try @noelhibbard’s approach on Debian next week. However, there does not appear to be a similar tool for terminating the program when you log out. See here for simple installation instructions for modern Linux systems like Rapsberry Pis. The number of frames inserted or deleted is so small as to be almost inaudible on normal audio material. The dialog under the AirPlay icon should now specify the Shairport server that is active on the Raspberry Pi as a possible receiver for streaming iTunes music . Shairport Sync is an AirPlay audio player – it plays audio streamed from iTunes, iOS, Apple TV and macOS devices and AirPlay sources such as Quicktime Player and ForkedDaapd, among others. Shairport Sync runs well on the Raspberry Pi. {'kCommandInfoCommandKey': 9, 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. For full information, please read the Shairport Sync man page, also available at http://htmlpreview.github.io/?https://github.com/mikebrady/shairport-sync/blob/master/man/shairport-sync.html. Ha! If nothing happens, download Xcode and try again. Recent systems tend to use systemd, whereas older systems use upstart or the earlier System V init system. Listing 5. Otherwise, choose --with-libdaemon --with-systemv. ), For installation into a System V system, replace the, If you intend to use Shairport Sync with PulseAudio in the standard user mode, it can not be a system service, so you should omit both, You can vary the resync threshold, or turn resync off completely, with the. My PR is just fixing two really minor bugs with it to make it somewhat more usable as a proof of concept (or in my case a temporary solution until something more robust is built). After an initial settling period, it represents the drift — the divergence between the rate at which frames are generated at the source and the rate at which the output device consumes them. It’s maintained by Mike Brady, whose Github page for the project includes tons of info on Airplay and advanced settings. Late packets can sometimes be asked for and received multiple times. Apart from the following options, all command line options can be replaced by settings in the configuration file. Finally It worked with ckdo's zip! After upgrading to the latest Volumio 2.692 on my Raspberry Pi 4, the AirPlay suddenly stopped working. To build and install the latest version of Shairport Sync, an Arch Linux build and installation guide is available, based on original work by Elia Cereda. However UDP has a maximum packet size of about 65000 bytes; while large enough for most data, Cover Art will often exceed this value. Third party programs tend to have much larger levels of corrections. First, we need to update our raspberry pi. Hardware Mute — Shairport Sync can mute properly if the hardware supports it. So please be advised! /usr/bin/arecord -D plughw:2 -f dat | /usr/bin/aplay -D plughw:2 -f dat& Now we are done with shairport-sync and done setting up the Pi to run as an AirPlay receiver. Audio played by a Shairport Sync-powered device stays synchronised with the source and hence with similar devices playing the same source. Thanks for the information. My iOS developer membership has lapsed, so, unless one of you guys has access to the iOS preview and can try it out, we will have to wait, I guess, until the public beta. TEARDOWN rtsp://192.168.123.62/12170682563501050740 For information about changes and updates, please refer to the RELEASENOTES.md file in the distribution. It's working well so far. That’s a great feature for lots of reasons. A final consideration is the location of the configuration file shairport-sync.conf. The zip file from 'https://github.com/openairplay/airplay2-receiver', ++ maybe I got wrong zip. Set the wait_for_completion value to "yes" for Shairport Sync to wait until the command has been completed before continuing. “fluppie commented 2 hours ago Hmm indeed, after a reboot off my iPhone 7 all is working now . The software glue that binds all this together is the open source Shairport Sync from Mike Brady. Did you see something missing that would be needed for a production ready project? Looking for to control multiroom audio via io.broker / homekit for a long time. Will be interesting to see how much detail is given, and whether they open source the protocol. “Shairport Sync is an AirPlay audio player – it plays audio streamed from iTunes, iOS, Apple TV and macOS devices and AirPlay sources such as Quicktime Player and ForkedDaapd, among others.” While this library is great for audio, it does not support AirPlay video or photo streaming. 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. I'm afraid I don't know yet whether iOS 11 will do multiroom with existing AirPlay devices or whether the new protocol is needed. As far as shairport-sync goes, you can use any scripts that you choose and do not need to use the shell scripts I have included here. Enter the command: In a systemd system, the top lines of the man page make it clear that it's a systemd system, as follows (from Ubuntu 16.04): Other init systems will look considerably different. Digital Signal Processing facilities -- please see the, OpenSSL or mbed TLS (PolarSSL is supported but deprecated), libalac (This is a library containing the Apple ALAC decoder. Problems can arise when you are trying to synchronise with speaker systems — typically surround-sound home theatre systems — that have their own inherent delays. Shairport Sync reads settings from a configuration file at /etc/shairport-sync.conf (note that in FreeBSD it will be at /usr/local/etc/shairport-sync.conf). https://developer.apple.com/videos/play/wwdc2017/509/, https://github.com/openairplay/airplay2-receiver, https://github.com/ckdo/airplay2-receiver. I just loaded iOS11 and was relieved that it still connects to shairport-sync. Analysis of Airplay 2; Airplay mirroring server; shairport-sync. It should've been done a long time ago. Note that the full path to the programs must be specified, and script files will not be executed unless they are marked as executable and have the appropriate shebang #!/bin/... as the first line. 00000020: 33 79 75 CD 93 54 D6 33 14 C6 85 03 01 28 CB 38 3yu..T.3.....(.8 A latency of this length allows AirPlay players to correct for network delays, processing time variations and so on. OpenWrt: There is a Shairport Sync package in OpenWrt trunk. It seems to work with iOS, macOS System Sounds (playing a YouTube movie from Safari) and the macOS Music app. The file contains explanations of the settings, useful hints and suggestions. Setup Shairport on each Max2Play device and use advanced Settings in Shairport to automatically disable the Squeezelite player on the device once a stream is played via Airplay. If you have chosen the --with-systemd configuration option, then, to enable Shairport Sync to start automatically at system startup, enter: Complete installation into a System V system. Smaller disparities are corrected by insertions or deletions, as described above. @mikebrady , I assume you saw my post over on ckdo's repo with the steps I went through to install it on Debian. GitHub Gist: instantly share code, notes, and snippets. 2 ms. For more about the motivation behind Shairport Sync, please see the wiki at https://github.com/mikebrady/shairport-sync/wiki. For best results with the alsa backend — including getting true mute and instant response to volume control and pause commands — you should access the hardware volume controls. Corrections should not greatly exceed net corrections. This contains all the setting groups and all the settings available, but they all are commented out (comments begin with //) so that default values are used. @PaulWieland's PR was merged yesterday… does this mean we'll see AirPlay 2 support in the next release? I didn't realise this, but then I haven't been in a position to try the most recent betas. Remove the Dockerfile and GitHub actions workflow. DACP-ID: A8918204AAA26668 Output bit depths of 8, 16, 24 and 32 bits, rather than the standard 16 bits. switching on an amplifier beforehand and switching it off afterwards. EDIT: Upon further testing, it seems that each disconnect causes a child python process to hit 100% CPU usage. (If a source disappears without warning, the session automatically terminates after two minutes and the device becomes available again. Debian, Ubuntu and Raspbian users can get the basics with: If you wish to include the Apple ALAC decoder, you need install it first – please refer to the ALAC repository for more information. The first line of the example above indicates that the output is on average 0.15 milliseconds behind exact synchronisation. Here is an example for for a Raspberry Pi using its internal soundcard — device hw:0 — that drives the headphone jack: Here is an example of driving a Topping TP30 Digital Amplifier, which has an integrated USB DAC and which is connected as audio device hw:1: For a cheapo "3D Sound" USB card (Stereo output and input only) on a Raspberry Pi: For a first generation Griffin iMic on a Raspberry Pi: For an NSLU2, which has no internal sound card, there appears to be a bug in ALSA — you can not specify a device other than "default". Shairport Sync can work with it in either mode. On a system with a well-conditioned ntp-based clock (and without output underruns) this figure should be very accurate after playing material continuously for a period. (This behaviour may be different from other Shairports.). To make Shairport Sync output to the built-in audio DAC and use its hardware mixer, in the alsa section of the configuration file, set the output device and mixer as follows: (Remember to uncomment the lines by removing the // at the start of each.) If synchronisation is lost — say due to a busy source or a congested network — Shairport Sync will mute its output and resynchronise. @Larsn1 I know right! Build & Install (shairport-sync): shairport-sync transforms your Linux machine into an Apple Airplay server. Let me try zip from ckdo's. Remove Old Versions of Shairport Sync and its Startup Scripts. {'kCommandInfoCommandKey': 24, So iTunes can request it, but iOS has never done so, and it looks like Apple are using a new protocol for multiroom capability in iOS 11. alsa. 00000010: 8B B9 AE BB 49 15 AD 63 92 C3 8F 55 59 A1 0F 44 ....I..c...UY..D The System V init script at /etc/init.d/shairport-sync has a bare minimum : Thanks for this PR. AirPlay is Apple's proprietary system that allows you to stream audio or video from an Apple source -- iOS, HomePod or Mac computer -- to another device over a home network. "Output frames per second" is the actual rate at which frames of audio are taken by the output device. Airplay is disabled in Rasplex settings, but gets airplay through squeezelite. Use the statistics setting to monitor correction levels. My guess it'll be from a developer's perspective, but we can live in hope! Definitely worth a read if you are a user of open source software. Of course we all love to get our hands on something, but what we love more is software that works and given the fact that devs are creating this in their free time it takes as long as it takes. Make sure there is any of the Airplay devices under the same wifi connection, or make sure you are running shairport-sync on Omega. "Net correction in ppm" is actually the net sum of corrections — the number of frame insertions less the number of frame deletions — given as a moving average in parts per million. 2. As previously mentioned, you can use command line arguments to provide settings to Shairport Sync as before, though newer settings will only be available via the configuration file. This is only a guide to get the open source software shairport-sync running on a linux single-board-computer. Before installing the shairport airplay software we want to install a number of modules needed to compile it. By the way, many systems with PulseAudio also have ALSA (in fact, PulseAudio is effectively a client of ALSA); in those cases you should choose the PulseAudio backend. First, we need to update our raspberry pi. I was able to download the latest beta of Xcode 9 from Apple’s developer portal using my free dev account, provision my iPad (which is running the iOS 11 beta) for development, and enable AirPlay 2. Choose the location of the configuration file. Now explore that AP2 protocol ” "fluppie commented an hour ago. One of the best things about it is that it runs entirely on the command line, and while it has a million configuration options, it’s surprisingly easy to get working out of the box. Thanks for the heads up. Hence, for Linux installations, you need to set the sysconfdir variable to /etc using the configuration setting --sysconfdir=/etc. AirPlay audio player. Two things emerge from it: So, Apple hasn’t closed the door on multiroom audio with regular AirPlay yet. It looks like those features are likely quite possible to add, but aren't in there yet. From a "heritage" point of view, Shairport Sync is a fork of Shairport 1.0. @Subject22 Don't forget that current Apple TVs are also going to be Airplay 2 capable. There seems to be something odd with POST:/pair-setup the second time you connect but something tells me that would be easy to troubleshoot and resolve. It demonstrates how to get ap2 functionality, but its not something that can just be copied and pasted into shairport-sync. Sources that supply metadata include iTunes and the Music app in macOS and iOS. Work fast with our official CLI. @lukecarbis No. Shairport Sync is a substantial rewrite of the fantastic work done in Shairport 1.0 by James Laird and others — please see https://github.com/abrasive/shairport/blob/master/README.md#contributors-to-version-1x for a list of the contributors to Shairport 1.x and Shairport 0.x. The number of samples the estimate is based on is given in the next column, "Source clock drift sample count". Any metadata exceeding this limit will not be sent over the socket interface. Shairport Sync can run programs just before it starts to play an audio stream and just after it finishes. download the GitHub extension for Visual Studio. @mynameisdaniel32: so in iOS 11 Beta shairport ist still working? To answer your question @rockrabbit, Shairport Sync does permit multiroom support, but the client must actually request it. ), Metadata — Shairport Sync can deliver metadata supplied by the source, such as Album Name, Artist Name, Cover Art, etc. For the ALSA backend you may need to (c) specify the output device to use and (d) specify the name of the mixer volume control to use to control the output level. Here are some examples of complete configuration files. Hello @mikebrady . After deleting, check again in case further copies are installed elsewhere. Here is a brief description of command line options that are not replicated by settings in the settings file. Here's what you want - All software mentioned is freely available. raspberry pi airplay via shairport-sync. Additionally, a Personal Package Archives for Shairport Sync master and development branches are available at https://launchpad.net/~dantheperson. Audio only on Raspbian. can be accomplished. I think someone is working on a fix (Fingers crossed). I have done this before with shairport and it worked very well with audio streaming.. Before we can install shairport we need to get a few dependencies. To get AirPlay working, we will set up shairport-sync on the Omega. Seems iOS 10.4 with Airplay 2 and Volumio just needs you to reboot iOS device. It pairs, it plays from every app I tested on my phone (iOS 14.3), volume control worked, transport controls worked. 'kCommandInfoEnabledKey': True}, Testing Shairport. This allows the Pi to act as a AirPlay Server, and receive music from our AirPlay compatible devices. "Source nominal frames per second" is the rate at which audio is being sent to Shairport Sync according to information supplied by the source itself. Audio only on Raspbian. Everything I tested worked. Finally, to actually stream music, a device with AirPlay controller capabilities must … {'kCommandInfoCommandKey': 2, Mac OS X: A HomeBrew package exists for Shairport Sync. No backend is specified here, so it will default to the alsa backend if more than one back end has been compiled. In this way, synchronised multi-room audio is possible for players that support it, such as iTunes and the macOS Music app. I am not a python dev - but I was able to get @ckdo 's fork of the airplay2-receiver to reconnect by destroying the hap() object on teardown, thus forcing a new one to be created on reconnect. First, we have to install some dependencies: Timestamps are referenced relative to the source computer's clock – the source clock, but timing must be done relative to the clock of the computer running Shairport Sync – the local clock. PulseAudio normally runs in the user mode but can be configured to run in system mode, though this is not recommended. HowTo: Raspberry Pi – Install “Shairport” Airplay server on the Raspberry Pi. The intention of my message was not to push or out of being impatient. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. It can drive the built-in sound card – see the note below on configuring the Raspberry Pi to make best use of it. However, shairport-sync currently does not support airplay 2. Aside from bugs it does everything it needs to do. I’m not sure, but I think it’s probably against some NDA or other to discuss the details of this stuff publicly. So hopefully AirPlay 2 is compatible to AirPlay 1. This can vary a great deal due to network conditions, but over a long time (more than 30 minutes) it should settle down to an accurate value. I also did a quick and dirty --device and --mixer option for specifying the output device and ALSA mixer control. hot 2 I wish Apple would just opensource AirPlay1/2. This is a really good article about what it feels like to be an open source maintainer. This will take up to 10 minutes. Shairport Sync can run a program whenever the volume is set or changed. (And there's no sign it'll be supported in the near future) – tillz Feb 3 '19 at 12:28