[pulseaudio-discuss] PulseAudio server connection failure: Connection refused

[Alexander Fieroch]

Hi!

I'm running a Rasperry Pi with squeezelite using pulseaudio as 
unattended radio station.
I'd like to let cron play a file at a special time of day and mixing it 
with the already playing stream.
Unfortunately I cannot connect to the pulseaudio server while it is 
already playing and an additional sound file is not played.


The user "radio" is in group "pulse-access" and starts pulseaudio with 
X11 login:


$ ps aux | grep pulse
radio      665  8.6  2.0 716220 19132 ?        S<sl Jul17 272:13 
/usr/bin/pulseaudio --daemonize=no
radio      786  6.3  1.9 390488 18596 ?        Ssl  Jul17 200:53 
/usr/bin/squeezelite -o pulse -n radiopi -z -a 16



Using ssh (user radio) to this remote Raspberry Pi radio station and 
trying to play a file I get


radio at radiopi:~ $ cvlc --play-and-exit 
/usr/share/sounds/alsa/Front_Center.wav
VLC media player 3.0.7 Vetinari (revision 3.0.7-0-g86cee31099)
[00545548] vlcpulse audio output error: PulseAudio server connection 
failure: Connection refused
[00555db0] dbus interface error: Failed to connect to the D-Bus session 
daemon: Unable to autolaunch a dbus-daemon without a $DISPLAY for X11
[00555db0] main interface error: no suitable interface module
[004c8b70] main libvlc error: interface "dbus,none" initialization failed
[00569760] main interface error: no suitable interface module
[004c8b70] main libvlc error: interface "globalhotkeys,none" 
initialization failed
[00569760] dummy interface: using the dummy interface module...
[005274c8] main playlist: end of playlist, exiting



Same with paplay:

$ paplay /usr/share/sounds/alsa/Front_Center.wav
Connection failure: Connection refused


How can I play additional files and to mix these streams?
Why is the connection refused although I am the same user?

Thanks!

Best regards,
Alexander

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