Pulseaudio

Way 1 - PULSE_SERVER Variable

• On the server (computer where the sound will come from, ip 10.0.0.3)

  1. Install paprefs

     julio@acer ~> sudo pacman -S paprefs
     

  2. Open paprefs and, in Network Server, check:

     • Enable network access to local sound devices;
     • Allow other machines on the LAN to discover local sound devices;
     • Don't require authentication.

• On the client (computer where the audio files are, ip 10.0.0.2)

  Set the environment variable $PULSE_SERVER and play a music file:

  julio@hp ~> export PULSE_SERVER=10.0.0.1
  julio@hp ~> mplayer music.flac
  

If everything went well, you should be hearing the music on the server computer.

Way 2 - MPD

Enable network access to the Pulseaudio server using paprefs or with the following command:

julio@acer ~> pactl load-module module-native-protocol-tcp auth-anonymous=1

Or, in a more secure way:

julio@acer ~> pactl load-module module-native-protocol-tcp auth-ip-acl="127.0.0.1;10.0.0.2"

Add a new output to the ~/.mpd/mpd.conf file:

audio_output {
    type    "pulse"
    name    "Acer - Pulseaudio"
    server  "10.0.0.1"
    #sink   "remote_server_sink"
}

In the ncmpcpp menu 8, you can enable/disable this output.

RTP

PulseAudio only does multicast with RTP, which ended up dropping the home Wi-Fi.

julio@acer ~> pactl load-module module-rtp-recv

Controlling MPD with Android

MPDroid

Streaming via MPD

quality is for VBR (variable bitrate) and bitrate for CBR (constant bitrate)

MPD streaming http

In ~/.config/mpd.conf:

audio_output {
    type                "httpd"
    name                "My HTTP Stream"
    encoder             "vorbis"                # optional, vorbis or lame
    port                "8000"
    bind_to_address     "0.0.0.0"               # optional, IPv4 or IPv6
    bitrate             "128"                   # do not define if quality is defined
    format              "44100:16:1"
    max_clients "0"                     # optional 0=no limit
}

Just open a player (it can be a browser) at http://10.0.0.2:8000 and hit play.

MPD FIFO + netcat + VLC

In ~/.config/mpd.conf:

audio_output {
    type            "fifo"
    name            "FIFO2"
    path            "/tmp/mpd.fifo"
    format          "44100:16:2"
}

On the server:

nc -u 10.0.0.2 8765 < /tmp/mpd.fifo

On the client:

nc -u -l 8765 | ~/Applications/VLC.app/Contents/MacOS/VLC --demux=rawaud --rawaud-channels 2 --rawaud-samplerate 44100 --audio-desync=250 -

Links

• http://en.gentoo-wiki.com/wiki/PulseAudio
• http://wiki.openwrt.org/doc/howto/pulseaudio
• http://wm161.net/2007/06/24/how-pulseaudio-made-my-openhouse-awesome/
• http://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/Network
• https://en.wikibooks.org/wiki/Configuring_Sound_on_Linux/Pulse_Audio/Remote_server
• https://wiki.archlinux.org/index.php/PulseAudio/Examples
• https://www.linux.com/learn/tutorials/332418:weekend-project-using-pulseaudio-to-share-sound-across-all-your-computers
• http://mpd.wikia.com/wiki/Configuration