Plays back audio. Plays background audio. http://docs.godotengine.org/en/latest/learning/features/audio/index.html http://docs.godotengine.org/en/3.0/tutorials/audio/audio_streams.html Returns the position in the [AudioStream]. 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 the audio configuration has more than two speakers, this sets the target channels. See [code]MIX_TARGET_*[/code] constants. Changes the pitch and the tempo of the audio. If [code]true[/code] audio is playing. The [AudioStream] object to be played. Volume of sound, in dB. Emitted when the audio stops playing. The audio will be played only on the first channel. The audio will be played on all surround channels. The audio will be played on the second channel, which is usually the center.