Audio Node

Audio controls longer-running sound. It is usually for music and ambience, not one-shot effects.

Use Insert > Playback & Flow > Audio when a track should start, change, fade, loop, or stop.

Properties

Field	What it does
Name	Optional editor-only name for the node.
Audio	Audio asset to play. Hidden when action is stop.
Track	bgm, ambient, or sfx.
Action	play or stop.
Next	Node that runs after the audio command.
Fade Seconds	Optional fade duration. Must be 0 or greater when set.
Volume	Playback volume from 0 to 1 when playing.
Playback Speed	Playback speed greater than 0 when playing.
Looped	Optional loop setting when playing.

Runtime behavior

When action is play, VNC stores the selected audio on the selected track. When action is stop, VNC clears that track.

The node continues immediately after issuing the audio command. It does not wait for the sound to finish.

Audio vs SFX

Use Audio when…	Use SFX when…
The sound should occupy a named track.	The sound should fire once.
You may stop or replace it later.	You do not need to stop it later.
It is music, ambience, or a looping bed.	It is a click, hit, chime, or short cue.

Audio nodes help establish mood over time. Place them at scene starts and major mood shifts so the track changes are easy to find.