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TL;DR

pw-loopback

Create loopback devices in PipeWire. More information: https://gitlab.freedesktop.org/pipewire/pipewire/-/wikis/Virtual-Devices.

  • Create a loopback device with the default loopback behavior:

pw-loopback

  • Create a loopback device that automatically connects to the speakers:

pw-loopback -m '[FL FR]' --capture-props='media.class=Audio/Sink'

  • Create a loopback device that automatically connects to the microphone:

pw-loopback -m '[FL FR]' --playback-props='media.class=Audio/Source'

  • Create a dummy loopback device that doesn’t automatically connect to anything:

pw-loopback -m '[FL FR]' --capture-props='media.class=Audio/Sink' --playback-props='media.class=Audio/Source'

  • Create a loopback device that automatically connects to the speakers and swaps the left and right channels between the sink and source:

pw-loopback --capture-props='media.class=Audio/Sink audio.position=[FL FR]' --playback-props='audio.position=[FR FL]'

  • Create a loopback device that automatically connects to the microphone and swaps the left and right channels between the sink and source:

pw-loopback --capture-props='audio.position=[FR FL]' --playback-props='media.class=Audio/Source audio.position=[FL FR]'

This document was created using the contents of the tldr project.