[pulseaudio-discuss] Restoring connections of ALSA emulation clients

Phil Frost indigo at bitglue.com
Thu Mar 21 08:16:26 PDT 2013

I have two applications (gnuradio and fldigi), and wish to connect the 
output of one to the input of the other. The source application is using 
the ALSA emulation layer, while the sink application has native 
PulseAudio support. I've accomplished this by loading a null sink 
module, and connecting the first application's output to the null sink, 
and the second application's input to the null sink's monitor, using 

However, when I restart the programs, the connections revert back to 
their defaults, and I have to run pavucontrol and remake the changes, 
which is inconvenient. Is there some mechanism that can remember the 
connections of these applications between restarts, or some way I can 
influence an ALSA application which opens the ALSA "pulse" device to 
connect to a PulseAudio sink other than the default sink?

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