pactl

pactl list short sinks
40	auto_null	PipeWire	float32le 2ch 48000Hz	SUSPENDED


pactl list sinks
Sink #32
	State: SUSPENDED
	Name: auto_null
	Description: Dummy Output
	Driver: PipeWire
	Sample Specification: float32le 2ch 48000Hz
	Channel Map: front-left,front-right
	Owner Module: 4294967295
	Mute: no
	Volume: front-left: 33423 /  51% / -17,55 dB,   front-right: 33423 /  51% / -17,55 dB
	        balance 0,00
	Base Volume: 65536 / 100% / 0,00 dB
	Monitor Source: auto_null.monitor
	Latency: 0 usec, configured 0 usec
	Flags: DECIBEL_VOLUME LATENCY
	Properties:
		node.name = "auto_null"
		device.description = "Dummy Output"
		audio.rate = "48000"
		audio.channels = "2"
		audio.position = "FL,FR"
		media.class = "Audio/Sink"
		factory.name = "support.null-audio-sink"
		node.virtual = "true"
		monitor.channel-volumes = "true"
		factory.id = "18"
		clock.quantum-limit = "8192"
		client.id = "31"
		node.driver = "true"
		factory.mode = "merge"
		audio.adapt.follower = ""
		library.name = "audioconvert/libspa-audioconvert"
		object.id = "32"
		object.serial = "32"
	Formats:
		pcm