Add the sound file by dragging it to the Editor or Tree. Select the element to be edited in the Tree to bring up its properties.
ID: Here you set a unique identification of the sound. The default ID takes its name from the file name.
Level: Set the volume level of the sound. 1.000 is 100% (full) volume. 0.700, for example, is 70% of full volume.
Loop: The amount of times the sound file will repeat its playback. The default is set to loop 1000 times. Set this to zero for no repeat.
Download: Export to first frame. – This option ensures that the audio file will be downloaded with the first frame of the movie and will then load first (along with anything else that is on the first frame, like the controller).