Need audio file to play throughout 2 slides

Hi K_Dingman​!

On the Slide 3, you could add a trigger to pause or stop the Background Audio.

For a smoother, less abrupt transition, you could use a series of timed triggers to reduce the volume of the Background Audio to zero and then stop it. This would reduce the volume to 90% for instance.

Or you could let Javascript handle it, but Player.BackgroundAudioVolume can't be set via SetVar() because it's a built-in player property, not a regular Storyline variable.

To achieve this, you'd need to create a 'bridging' variable, say 'Bgd_Volume' with a starting value of 100, and trigger Player.BackgroundAudioVolume to match any changes to it, like so:

Then, this JavaScript could gradually reduce the volume over 5 seconds:

var player = GetPlayer();
var duration = 5000; // 5 seconds in milliseconds
var interval = 50;   // Update every 50ms for smooth fade
var steps = duration / interval;
var currentVolume = player.GetVar("Bgd_Volume");
var decrement = currentVolume / steps;

var fade = setInterval(function() {
    currentVolume -= decrement;

    if (currentVolume <= 0) {
        currentVolume = 0;
        clearInterval(fade);
    }

    player.SetVar("Bgd_Volume", Math.round(currentVolume));
}, interval);

This trigger would be used to stop your audio when the volume hits 0:

And if the user ever goes back to Slide 1 without restarting the course, and you want the music to play again, these triggers on Slide 1 would reset everything: 

Hope that helps!