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pw-loopback

Tool for creating 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 sink that can be selected in applications that forwards the data to another sink:

pw-loopback -m '{{[FL FR]}}' --capture-props='{{media.class=Audio/Sink node.name=my-sink}}'

Create a sink that can be selected in applications that swaps the left and right channels to another sink:

pw-loopback --capture-props='{{media.class=Audio/Sink node.name=my-sink audio.position=[FL FR]}}' --playback-props='{{audio.position=[FR FL]}}'

Create a source that can be selected in applications that swaps the left and right channels from another source:

pw-loopback --capture-props='{{audio.position=[FR FL]}}' --playback-props='{{media.class=Audio/Source node.name=my-source audio.position=[FL FR]}}'