Configure audio for simultaneous output?

[Merritt]

I finally got the time to mess around with this.

Thanks to the link from @grumpey I figured it out.

• Created a new sink:

pactl load-module module-null-sink media.class=Audio/Sink sink_name=my-combined-sink channel_map=stereo

• Used qjackctl to link them together. The interface is somewhat confusing, but:
  • Launch qjackctl, then click on Graph.
  • Find your new sink’s “monitor” node and connect it to the playback nodes for the existing audio devices. Here you can see I connected my new “simultaneous-audio-output” to my TV (“Ellesmere HDMI Audio”) and my PC speakers (“Starship/Matisse HD Audio”):

Hopefully this process will become easier as pipewire matures further. Thanks to everyone for the help