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pipewire: added loopback

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tiyn 2024-05-16 04:12:26 +02:00
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@ -25,3 +25,36 @@ Both are graph-based interface also called patchbays.
For further sound processing the easiest way to do so is using
[easyeffects](/wiki/linux/easyeffects.md) which features a wide range of effects
to apply to sound streams including noise reduction.
### Get ID of an Input or Output
Using the following command a list of all connected input and output aswell as streams and devices
can be displayed.
```sh
wpctl status
```
Under the `Sinks` the outputs are displayed and under `Sources` the inputs.
Defaults are noted with an asterix.
The identificator is displayed prior to the name of the input, output, device or stream.
If a device name is known (in this case `"Starship/Matisse HD Audio Controller Analog Stereo"`).
The following command will return its identificator.
```sh
NAME=$(wpctl status | grep "Starship/Matisse HD Audio Controller Analog Stereo")
ID=$( echo $NAME | cut -d '.' -f 1 | cut -c 11-)
echo ID: $ID
```
### Loopback Input
An input can be output to the default output by using the following command.
In that command `<id>` is the identificator of the input that should be looped back.
It needs to be set accordingly.
```sh
pw-loopback -C <id>
```