Plays back audio. Plays background audio. Plays the audio from the given position 'from_position', in seconds. Sets the position from which audio will be played, in seconds. Stops the audio. If [code]true[/code], audio plays when added to scene tree. Default value: [code]false[/code]. Bus on which this audio is playing. If [code]true[/code], audio is playing. The [AudioStream] object to be played. Volume of sound, in dB. Emitted when the audio stops playing.