Airtime LiquidSoap and ALSA
  • Vote Up1Vote Down Brandon MartinBrandon Martin
    Posts: 10Member
    Hello! We've been using Airtime the past year and a half and it's been great relative to our old autoDJ. We had a server crash last month and I'm still trying to get it back online.

    My last roadblock is an issue with Liquidsoap and ALSA. We have an external USB soundcard. I've set the soundcard to the 0th index in alsa, and tested it with terminal commands.
    (Running Ubuntu 14.04)

    I was really hoping it would be simpler to figure out as I've gotten this working numerous times before. If anybody has any insight, it would be a huge help. Thanks!
    Here is my liquidsoap log where it fails:

    2015/12/11 21:39:37 [main:3] Using: graphics=[distributed with Ocaml] pcre=7.0.2 dtools=0.3.1 duppy=0.5.1 duppy.syntax=0.5.1 cry=0.2.2 mm=0.2.1 xmlplaylist=0.1.3 lastfm=0.3.0 ogg=0.4.5 vorbis=0.6.1 opus=0.1.0 speex=0.2.0 mad=0.4.4 flac=0.1.1 flac.ogg=0.1.1 dynlink=[distributed with Ocaml] lame=0.3.2 shine=0.1.1 gstreamer=0.2.0 frei0r=0.1.0 voaacenc=0.1.0 theora=0.3.0 schroedinger=0.1.0 gavl=0.1.5 bjack=0.1.4 alsa=0.2.1 ao=0.2.0 samplerate=0.1.2 taglib=0.3.1 magic=0.7.3 camomile=0.8.4 inotify=1.0 faad=0.3.2 soundtouch=0.1.7 portaudio=0.2.0 pulseaudio=0.1.2 ladspa=0.1.4 dssi=0.1.1 sdl=0.9.1 camlimages=4.0.0 lo=0.1.0 yojson=1.1.7 gd=1.0a5

    2015/12/11 21:39:37 [dynamic.loader:3] Could not find dynamic module for fdkaac encoder.

    2015/12/11 21:39:37 [dynamic.loader:3] Could not find dynamic module for aacplus encoder.

    2015/12/11 21:39:37 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/faad.cmxs.

    2015/12/11 21:39:37 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/voaacenc.cmxs.

    2015/12/11 21:39:37 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/mad.cmxs.

    2015/12/11 21:39:37 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/ao.cmxs.

    2015/12/11 21:39:37 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/cry.cmxs.

    2015/12/11 21:39:37 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/pulseaudio.cmxs.

    2015/12/11 21:39:37 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/flac.cmxs.

    2015/12/11 21:39:37 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/lame.cmxs.

    2015/12/11 21:39:37 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/portaudio.cmxs.

    2015/12/11 21:39:37 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/ogg.cmxs.

    2015/12/11 21:39:37 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/alsa.cmxs.

    2015/12/11 21:39:37 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/vorbis.cmxs.

    2015/12/11 21:39:37 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/flac_ogg.cmxs.

    2015/12/11 21:39:37 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/opus.cmxs.

    2015/12/11 21:39:37 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/taglib.cmxs.

    2015/12/11 21:39:37 [frame:3] Using 44100Hz audio, 25Hz video, 44100Hz master.

    2015/12/11 21:39:37 [frame:3] Frame size must be a multiple of 1764 ticks = 1764 audio samples = 1 video samples.

    2015/12/11 21:39:37 [frame:3] Targetting 'frame.duration': 0.04s = 1764 audio samples = 1764 ticks.

    2015/12/11 21:39:37 [frame:3] Frames last 0.04s = 1764 audio samples = 1 video samples = 1764 ticks.

    2015/12/11 21:39:37 [lang:3] ALSA

    2015/12/11 21:39:37 [lang:3] /usr/lib/airtime/pypo/bin/liquidsoap_scripts/notify.sh --liquidsoap-started &

    2015/12/11 21:39:37 [threads:3] Created thread "generic queue #1".

    2015/12/11 21:39:37 [threads:3] Created thread "generic queue #2".

    2015/12/11 21:39:37 [threads:3] Created thread "non-blocking queue #1".

    2015/12/11 21:39:37 [threads:3] Created thread "non-blocking queue #2".

    2015/12/11 21:39:37 [threads:3] Created thread "http polling" (1 total).

    2015/12/11 21:39:37 [threads:3] Created thread "alsa_out(default)" (2 total).

    2015/12/11 21:39:37 [threads:3] Created thread "wallclock_alsa" (3 total).

    2015/12/11 21:39:37 [clock.wallclock_alsa:3] Streaming loop starts, synchronized by active sources.

    2015/12/11 21:39:37 [dummy:3] Source failed (no more tracks) stopping output...

    2015/12/11 21:39:37 [dummy(dot)1:3] Source failed (no more tracks) stopping output...

    2015/12/11 21:39:37 [dummy(dot)2:3] Source failed (no more tracks) stopping output...

    2015/12/11 21:39:37 [map_metadata_6559:3] Inserting missing metadata.

    2015/12/11 21:39:37 [schedule_noise_switch:3] Switch to map_metadata_6559.

    2015/12/11 21:39:37 [alsa_out(default):3] Using ALSA 1.0.27.2.

    2015/12/11 21:39:37 [alsa_out(default):2] Falling back on interleaved S16LE

    2015/12/11 21:39:37 [threads:1] Thread "alsa_out(default)" aborts with exception Alsa error: Invalid argument!

    2015/12/11 21:39:37 [main:3] Shutdown started!

    2015/12/11 21:39:37 [main:3] Waiting for threads to terminate...

    2015/12/11 21:39:37 [stderr:3] Thread 7 killed on uncaught exception Alsa.Invalid_argument

    2015/12/11 21:39:37 [clock.wallclock_alsa:3] Streaming loop stopped.

    2015/12/11 21:39:37 [threads:3] Thread "wallclock_alsa" terminated (1 remaining).

    2015/12/11 21:39:38 [server:3] New client: localhost.

    2015/12/11 21:39:38 [server:3] Client localhost disconnected.

    2015/12/11 21:39:38 [server:3] New client: localhost.

    2015/12/11 21:39:38 [lang:3] streams.scheduled_play_start

    2015/12/11 21:39:38 [lang:3] streams.live_dj_stop

  • 7 Comments sorted by
  • Vote Up1Vote Down Brandon MartinBrandon Martin
    Posts: 10Member
    When attempting to test the sound card in verbose, here is the message:









    airtime-test-soundcard -v


    Sound API: alsa


    Outputting to soundcard. You should be able to hear a monotonous tone. Press ctrl-c to quit.


    2015/12/14 20:36:03 >>> LOG START


    2015/12/14 20:36:03 [protocols.external:3] Found "/usr/bin/wget".


    2015/12/14 20:36:03 [main:3] Liquidsoap 1.1.1


    2015/12/14 20:36:03 [main:3] Using: graphics=[distributed with Ocaml] pcre=7.0.2 dtools=0.3.1 duppy=0.5.1 duppy.syntax=0.5.1 cry=0.2.2 mm=0.2.1 xmlplaylist=0.1.3 lastfm=0.3.0 ogg=0.4.5 vorbis=0.6.1 opus=0.1.0 speex=0.2.0 mad=0.4.4 flac=0.1.1 flac.ogg=0.1.1 dynlink=[distributed with Ocaml] lame=0.3.2 shine=0.1.1 gstreamer=0.2.0 frei0r=0.1.0 voaacenc=0.1.0 theora=0.3.0 schroedinger=0.1.0 gavl=0.1.5 bjack=0.1.4 alsa=0.2.1 ao=0.2.0 samplerate=0.1.2 taglib=0.3.1 magic=0.7.3 camomile=0.8.4 inotify=1.0 faad=0.3.2 soundtouch=0.1.7 portaudio=0.2.0 pulseaudio=0.1.2 ladspa=0.1.4 dssi=0.1.1 sdl=0.9.1 camlimages=4.0.0 lo=0.1.0 yojson=1.1.7 gd=1.0a5


    2015/12/14 20:36:03 [dynamic.loader:3] Could not find dynamic module for fdkaac encoder.


    2015/12/14 20:36:03 [dynamic.loader:3] Could not find dynamic module for aacplus encoder.


    2015/12/14 20:36:03 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/faad.cmxs.


    2015/12/14 20:36:03 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/voaacenc.cmxs.


    2015/12/14 20:36:03 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/mad.cmxs.


    2015/12/14 20:36:03 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/ao.cmxs.


    2015/12/14 20:36:03 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/cry.cmxs.


    2015/12/14 20:36:03 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/pulseaudio.cmxs.


    2015/12/14 20:36:03 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/flac.cmxs.


    2015/12/14 20:36:03 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/lame.cmxs.


    2015/12/14 20:36:03 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/portaudio.cmxs.


    2015/12/14 20:36:03 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/ogg.cmxs.


    2015/12/14 20:36:03 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/alsa.cmxs.


    2015/12/14 20:36:03 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/vorbis.cmxs.


    2015/12/14 20:36:03 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/flac_ogg.cmxs.


    2015/12/14 20:36:03 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/opus.cmxs.


    2015/12/14 20:36:03 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/taglib.cmxs.


    2015/12/14 20:36:03 [frame:3] Using 44100Hz audio, 25Hz video, 44100Hz master.


    2015/12/14 20:36:03 [frame:3] Frame size must be a multiple of 1764 ticks = 1764 audio samples = 1 video samples.


    2015/12/14 20:36:03 [frame:3] Targetting 'frame.duration': 0.04s = 1764 audio samples = 1764 ticks.


    2015/12/14 20:36:03 [frame:3] Frames last 0.04s = 1764 audio samples = 1 video samples = 1764 ticks.


    2015/12/14 20:36:03 [threads:3] Created thread "generic queue #1".


    2015/12/14 20:36:03 [threads:3] Created thread "generic queue #2".


    2015/12/14 20:36:03 [threads:3] Created thread "alsa_out(default)" (1 total).


    2015/12/14 20:36:03 [threads:3] Created thread "wallclock_alsa" (2 total).


    2015/12/14 20:36:03 [clock.wallclock_alsa:3] Streaming loop starts, synchronized by active sources.


    2015/12/14 20:36:03 [alsa_out(default):3] Using ALSA 1.0.27.2.


    2015/12/14 20:36:03 [alsa_out(default):2] Falling back on interleaved S16LE


    2015/12/14 20:36:03 [threads:1] Thread "alsa_out(default)" aborts with exception Alsa error: Invalid argument!


    Thread 4 killed on uncaught exception Alsa.Invalid_argument


    2015/12/14 20:36:03 [main:3] Shutdown started!


    2015/12/14 20:36:04 [main:3] Waiting for threads to terminate...


    2015/12/14 20:36:04 [clock.wallclock_alsa:3] Streaming loop stopped.


    2015/12/14 20:36:04 [threads:3] Thread "wallclock_alsa" terminated (0 remaining).


    2015/12/14 20:36:04 [main:3] Cleaning downloaded files...


    2015/12/14 20:36:04 [main:3] Freeing memory...


    2015/12/14 20:36:04 >>> LOG END


    There was an error using the selected sound API. Please select a different API and run this program again. Use the -h option for help

  • Vote Up0Vote Down Voisses TechVoisses Tech
    Posts: 1,423Member
    I have used pulseaudio and it work fairly okay with little configuration.
    and although there have being significant improvement in trying to try and make pulse and Alsa works better,i still find it lacking.
     
    I however like Alsa better and if you want to use jack for like Ardour then you might have to do the following:-

    You may have to disable pulse?

    sudo nano /etc/pulse/client.conf



    look for the the line which says
    autospawn = yes  and change it to

    autospawn = no

    exit and then  type at the terminal
    killall pulseaudio

     After that run
    ps -C pulseaudio

    to check if pulseaudio is still running.  If you  back something similar to:

    PID TTY          TIME CMD
    17065 ?        00:00:02 pulseaudio

    Then pulse audio is still running, however if you get back:

    PID TTY          TIME CMD

    pulseaudio is dead

    Do not remove pulseaudio as older post recommend ,you might experience some real bad circumstances since pulse is intertwine with almost everything in debian flavors.

    install gnome-alsamixer     as your volume control

    then test this way at the terminal instead

    liquidsoap -v --debug 'output.alsa(bufferize = false,
                            input.alsa(bufferize = false))'


    Post edited by Voisses Tech at 2015-12-15 00:26:20
    Anyone reading this a find it funny about my grammar , I make no apology ,Go get a translator.
    "The Problem with education today is that it takes a university degree to switch on a light bulb"
    "You learn from your mistakes but wise people learn from others mistakes avoid Making mistakes there is not sufficient rooms to make them"
    "Innuendo","If's","Assumptions" and "Fear" are for politician.Who,What,where,When and How are for those seeking knowledge and care about Humanity.
    "I might be in Mud but that does not Make me a Wild Hog(pig)"
    “Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius — and a lot of courage to move in the opposite direction.”
    "The only thing that remains constant is change itself"
    May the force be with you,until our path or destiny bring us in tandem.
  • Vote Up0Vote Down Brandon MartinBrandon Martin
    Posts: 10Member
    Thank you Voisses for the guidance. 

    I actually didn't have pulseaudio installed at first. I installed it later after researching my soundcard and found that it is recommended under Ubuntu, but now just getting "Device or resource busy". I also found that prior to my hardware failure I was running Debian 7.6, not Ubuntu. I'm tempted to just go back to Debian 7.6 (Or is 8 recommended?) just to clear the water of any crap I've accidentally dealt to this server. 

    I've ran the commands you've recommended, pulse wasn't running, but still device is coming back busy. Here is the output of the liquidsoap command:










    kghp@dtphs302709kghp:/root$ liquidsoap -v --debug 'output.alsa(bufferize = false,


    >                         input.alsa(bufferize = false))'


    2015/12/15 20:10:56 >>> LOG START


    2015/12/15 20:10:56 [protocols.external:3] Found "/usr/bin/wget".


    2015/12/15 20:10:56 [main:3] Liquidsoap 1.1.1


    2015/12/15 20:10:56 [main:3] Using: graphics=[distributed with Ocaml] pcre=7.0.2 dtools=0.3.1 duppy=0.5.1 duppy.syntax=0.5.1 cry=0.2.2 mm=0.2.1 xmlplaylist=0.1.3 lastfm=0.3.0 ogg=0.4.5 vorbis=0.6.1 opus=0.1.0 speex=0.2.0 mad=0.4.4 flac=0.1.1 flac.ogg=0.1.1 dynlink=[distributed with Ocaml] lame=0.3.2 shine=0.1.1 gstreamer=0.2.0 frei0r=0.1.0 voaacenc=0.1.0 theora=0.3.0 schroedinger=0.1.0 gavl=0.1.5 bjack=0.1.4 alsa=0.2.1 ao=0.2.0 samplerate=0.1.2 taglib=0.3.1 magic=0.7.3 camomile=0.8.4 inotify=1.0 faad=0.3.2 soundtouch=0.1.7 portaudio=0.2.0 pulseaudio=0.1.2 ladspa=0.1.4 dssi=0.1.1 sdl=0.9.1 camlimages=4.0.0 lo=0.1.0 yojson=1.1.7 gd=1.0a5


    2015/12/15 20:10:56 [dynamic.loader:3] Could not find dynamic module for fdkaac encoder.


    2015/12/15 20:10:56 [dynamic.loader:3] Could not find dynamic module for aacplus encoder.


    2015/12/15 20:10:56 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/faad.cmxs.


    2015/12/15 20:10:56 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/voaacenc.cmxs.


    2015/12/15 20:10:56 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/mad.cmxs.


    2015/12/15 20:10:56 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/ao.cmxs.


    2015/12/15 20:10:56 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/cry.cmxs.


    2015/12/15 20:10:56 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/pulseaudio.cmxs.


    2015/12/15 20:10:56 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/flac.cmxs.


    2015/12/15 20:10:56 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/lame.cmxs.


    2015/12/15 20:10:56 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/portaudio.cmxs.


    2015/12/15 20:10:56 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/ogg.cmxs.


    2015/12/15 20:10:56 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/alsa.cmxs.


    2015/12/15 20:10:56 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/vorbis.cmxs.


    2015/12/15 20:10:56 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/flac_ogg.cmxs.


    2015/12/15 20:10:56 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/opus.cmxs.


    2015/12/15 20:10:56 [dynamic.loader:2] Loaded plugin file /usr/lib/liquidsoap/1.1.1/plugins/taglib.cmxs.


    2015/12/15 20:10:56 [frame:3] Using 44100Hz audio, 25Hz video, 44100Hz master.


    2015/12/15 20:10:56 [frame:3] Frame size must be a multiple of 1764 ticks = 1764 audio samples = 1 video samples.


    2015/12/15 20:10:56 [frame:3] Targetting 'frame.duration': 0.04s = 1764 audio samples = 1764 ticks.


    2015/12/15 20:10:56 [frame:3] Frames last 0.04s = 1764 audio samples = 1 video samples = 1764 ticks.


    2015/12/15 20:10:56 [video.converter:4] Couldn't find preferred video converter: gavl.


    2015/12/15 20:10:56 [audio.converter:4] Couldn't find preferred samplerate converter: libsamplerate.


    2015/12/15 20:10:56 [audio.converter:4] Using native samplerate converter


    2015/12/15 20:10:56 [threads:3] Created thread "generic queue #1".


    2015/12/15 20:10:56 [threads:3] Created thread "generic queue #2".


    2015/12/15 20:10:56 [clock:4] Currently 1 clocks allocated.


    2015/12/15 20:10:56 [clock.wallclock_alsa:4] Starting 2 sources...


    2015/12/15 20:10:56 [source:4] Source alsa_5040 gets up.


    2015/12/15 20:10:56 [clock.wallclock_alsa:4] Delegating clock to active sources.


    2015/12/15 20:10:56 [alsa_in(default):3] Using ALSA 1.0.27.2.


    2015/12/15 20:10:56 [alsa_in(default):2] Falling back on interleaved S16LE


    2015/12/15 20:10:56 [clock.wallclock_alsa:2] Error when starting alsa_in(default): Failure("Error while setting format: Invalid argument")!


    2015/12/15 20:10:56 [clock.wallclock_alsa:3] Raised at file "pervasives.ml", line 20, characters 22-33


    2015/12/15 20:10:56 [alsa_in(default):1] Got ill-balanced activations (from alsa_in(default))!


    2015/12/15 20:10:56 [clock:2] Error when leaving output alsa_in(default): File "source.ml", line 403, characters 10-16: Assertion failed!


    2015/12/15 20:10:56 [clock:3] Raised by primitive operation at file "lib/pcre.ml", line 829, characters 14-76


    2015/12/15 20:10:56 [source:4] Source output.alsa_5044 gets up.


    2015/12/15 20:10:56 [source:4] Source alsa_in(default) gets up.


    2015/12/15 20:10:56 [alsa_in(default):3] Using ALSA 1.0.27.2.


    2015/12/15 20:10:56 [clock.wallclock_alsa:2] Error when starting alsa_out(default): Failure("Error while setting open_pcm: Device or resource busy")!


    2015/12/15 20:10:56 [clock.wallclock_alsa:3] Raised at file "pervasives.ml", line 20, characters 22-33


    2015/12/15 20:10:56 [alsa_out(default):1] Got ill-balanced activations (from alsa_out(default))!


    2015/12/15 20:10:56 [clock:2] Error when leaving output alsa_out(default): File "source.ml", line 403, characters 10-16: Assertion failed!


    2015/12/15 20:10:56 [clock:3] Raised by primitive operation at file "lib/pcre.ml", line 829, characters 14-76


    2015/12/15 20:10:56 [clock:4] Main phase starts.


    2015/12/15 20:10:56 [main:3] Shutdown started!


    2015/12/15 20:10:56 [main:3] Waiting for threads to terminate...


    2015/12/15 20:10:56 [main:3] Cleaning downloaded files...


    2015/12/15 20:10:56 [main:3] Freeing memory...

    2015/12/15 20:10:56 >>> LOG END

  • Vote Up0Vote Down Brandon MartinBrandon Martin
    Posts: 10Member
    When I try running aplay on an mp3 file, it is telling me this:









    aplay: set_params:1233: Sample format non available


    Available formats:


    - S32_LE


    Is there a way to change liquidsoap's format to S32_LE instead of S16LE?

  • Vote Up0Vote Down Voisses TechVoisses Tech
    Posts: 1,423Member
    You should not have to both formats are supported by Aplay.
    but you seem to have multiple sound cards.

    I can assume that you have a usb soundcard which you are trying to pipe the output through.Right!

    if so try to order your cards properly like this post
    https://help.ubuntu.com/community/UbuntuStudio/UsbAudioDevices

    another quick fix is trying to make liquidsoap see your soundcard as a virtual card like this

      find ALSA device

    aplay -l

    create virtual device to make sure to use alsa

    nano ./asound.conf

    local to user (recommended)
    or
    The systemwide (maybe broken on updates)

    sudo nano /etc/asound.conf


    pcm.liquidsoap {

            type plug
            slave { pcm "hw:0,0" }
    }

    let me know what
    aplay -l
    Post edited by Voisses Tech at 2015-12-15 21:42:22
    Anyone reading this a find it funny about my grammar , I make no apology ,Go get a translator.
    "The Problem with education today is that it takes a university degree to switch on a light bulb"
    "You learn from your mistakes but wise people learn from others mistakes avoid Making mistakes there is not sufficient rooms to make them"
    "Innuendo","If's","Assumptions" and "Fear" are for politician.Who,What,where,When and How are for those seeking knowledge and care about Humanity.
    "I might be in Mud but that does not Make me a Wild Hog(pig)"
    “Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius — and a lot of courage to move in the opposite direction.”
    "The only thing that remains constant is change itself"
    May the force be with you,until our path or destiny bring us in tandem.
  • Vote Up0Vote Down Voisses TechVoisses Tech
    Posts: 1,423Member
    of note though is this line

     Error when starting alsa_out(default): Failure("Error while setting open_pcm: Device or resource busy")!

    showing that your card is grab by some process at startup and is not available ,
    • do you have any sound dependent program like Jack etc install on the machine
    • pulse install then make sure autospawn is set to no. do not comment it out (default).rewrite it to say no
    • or incorrect order of multiple cards

    create another user and then test from that also.

    Please ensure that hw.00 is the default


    TO BE HONEST THOUGH I HAVE NEVER HAVE A PRODUCTION READY SOLUTION USING THE

    OUTPUT SOUNDCARD ON AN AIRTIME MACHINE


    Post edited by Voisses Tech at 2015-12-15 22:07:49
    Anyone reading this a find it funny about my grammar , I make no apology ,Go get a translator.
    "The Problem with education today is that it takes a university degree to switch on a light bulb"
    "You learn from your mistakes but wise people learn from others mistakes avoid Making mistakes there is not sufficient rooms to make them"
    "Innuendo","If's","Assumptions" and "Fear" are for politician.Who,What,where,When and How are for those seeking knowledge and care about Humanity.
    "I might be in Mud but that does not Make me a Wild Hog(pig)"
    “Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius — and a lot of courage to move in the opposite direction.”
    "The only thing that remains constant is change itself"
    May the force be with you,until our path or destiny bring us in tandem.
  • Vote Up0Vote Down Brandon MartinBrandon Martin
    Posts: 10Member
    You are correct! I'm using a Scarlet 2i2 USB soundcard. I've set it to the 0th index in my alsa-base.conf but was unaware of using pcm.liquidsoap in the asound.conf. I already had a pcm.default set though.

    Thank you for your advice, I was able to get sound almost immediatly on my backup system using Debian 7.9. I'd like to stick to Debian from now on just incase we have rebuild in the future, where we need it working with as little configuration as possible. 
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