[correct-horse]

To spare others from googling:

https://docs.pipewire.org/page_module_echo_cancel.html

https://wiki.archlinux.org/title/PipeWire/Examples#Echo_canc...

If you're still on pulseaudio for some reason, it ships with a similar module named "module-echo-cancel":

https://www.freedesktop.org/wiki/Software/PulseAudio/Documen...

[generalizations]

Huh, thanks. I was interested in this probably 6-8 years ago, and when I went digging the stackoverflow answer mentioned elsewhere in this thread [0] was as far as I got. I guess the tech has progressed since then.

[0] https://stackoverflow.com/questions/21795944/remove-known-au...

[varjag]

It was there 8 years ago.