How can I make it so the output doesn't automatically connect to a sink? about noise-suppression-for-voice HOT 1 OPEN

If your command configures the playback.props as a source, then it won't be automatically linked like that by the session manager, unless you select that source as your default input, in which case it'll route it to everything that wants a source and doesn't specify which one. (ie it will become your default microphone and when something wants a mic it'll get this)

In my case I'm using a config file, the relevant portion is

            playback.props = {
                node.name = "Boom Mic Out"
                media.class = Audio/Source
            }

Sorry, I can't tell you how to convert this into pulseaudio commands (I hate pulse and avoided everything about it so I'm completely dumb on that front, sorry!), but the point is that you want the output node to be setup as a source, and then the session manager (probably wireplumber) won't link it automatically like it's doing now.

You might find the target.object property (on both capture and playback nodes) to be of use to you, too. If you set it on the capture node (and the node is not setup as a sink), you can point at at the node name of the mic you're noise-cancelling, if you set it on the playback node you can direct the post-rnnoise output to a specific node)

Hope this helps.

from noise-suppression-for-voice.