Pipewire/Wireplumber set volume based on node name (lemmy.world)

submitted 1 month ago by Zangoose@lemmy.world to c/linux@programming.dev

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I have a virtual source and a virtual sink which I'm using to forward audio to/from chat apps (Matrix, Discord, Zoom, etc.) so I can control the mic/output volume independently of everything else on my system. I have them setup and working fine using pipewire.conf.d files. The problem is that using wpctl to change volume requires having an ID, but those aren't static. Normally the solution would be to use @DEFAULT_AUDIO_SOURCE@ (or sink), but that wouldn't work in this case. Is there a way to adjust volume/toggle mute without having the ID? Or alternatively, is there a way to get the ID for a specific node name that I can put in a bash script?

If I'm asking this in the wrong place, is there a better place to go?

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[-] TrashPandacoot@lemmy.world 2 points 1 month ago

I was thinking about figuring out how to set up something similar so I can adjust discord volume separately from everything else but I haven’t got around to it yet. I think the way to go would be using wpctl status To get a list of all sources and sinks and parse out the id from there

wpctl status | grep "\. Some Discord Output" | egrep '^ │( )*[0-9]*' -o | cut -c6-55 | egrep -o '[0-9]*'

I think the above would return the ID of a node named “Some Discord Output” but I’m not at my computer to check

this post was submitted on 15 May 2025

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