When I’ve wanted to keep a recording of what is sent to the loudspeakers, I’ve been using this method with Pulseaudio
- Find the output device (sink) using
pactl list. - Get the “monitor source” of that sink.
- Use that source in
parec -d <source>to copy the stream.
Now I’ve switched my system to using Pipewire. The above process still works via the compatibility layer, but I was curious how to do it using native Pipewire tools. I can find the line out device with e.g. pw-cli info all. I wouldn’t say I understand all of the output, but I can not see anything in that list which seems to correspond to the monitoring source of Pulseaudio.
I tried simply using pw-record with the output device itself as a target. The first seconds of the recording sounds fine, but after that it is very chopped up. That doesn’t seem to be the right way to do it.
Any ideas what I should do instead?