This file is indexed.

/usr/share/alsa/ucm/Tuna/Tuna.conf is in libasound2-data 1.0.27.2-3ubuntu7.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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# UCM configuration for SDP4430
SectionUseCase."HiFi" {
	File "HiFi"
	Comment "Play HiFi quality Music"
}

SectionUseCase."Voice Call" {
	File "VoiceCall"
	Comment "Voice Phone Call"
}

SectionDefaults [
	cdev "hw:Tuna"
]