pw-loopback:tldr:9a56a

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

pw-loopback

$ pw-loopback --capture-props='${media-class=Audio-Sink audio-position=[FL FR]}' --playback-props='${audio-position=[FR FL]}'

try on your machine

The command you provided is using the "pw-loopback" utility. This utility allows you to capture and playback audio using PipeWire, a server and API for handling multimedia pipelines in Linux.

Let's break down the command and its arguments:

pw-loopback: This is the command that starts the "pw-loopback" utility.
--capture-props='${media-class=Audio-Sink audio-position=[FL FR]}': This argument specifies the properties for capturing audio. Here, it sets the media class to "Audio-Sink" and the audio position to "[FL FR]". "FL" stands for Front Left, and "FR" stands for Front Right. So, this property indicates that audio should be captured from the front left and front right channels.
--playback-props='${audio-position=[FR FL]}': This argument specifies the properties for audio playback. Here, it sets the audio position to "[FR FL]". This property indicates that audio should be played back to the front right and front left channels.

In summary, this command configures the "pw-loopback" utility to capture audio from the front left and front right channels and play it back to the front right and front left channels.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.

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