How to Display Current Slide Audio Time Variables (Current Position/Duration)?

You'll need to put this JavaScript in the head of the index.html page inside of <script> tags.

Create 2 variable and use them in your text captions:

audioDuration

audioTime

<script>

var interfaceObj, eventEmitterObj, slideData;

window.addEventListener( 'moduleReadyEvent', function ( e )
{
interfaceObj = e.Data;
eventEmitterObj = interfaceObj.getEventEmitter();
initializeEventListeners()
});

function initializeEventListeners()
{
if ( interfaceObj )
{
  if ( eventEmitterObj )
    {
          eventEmitterObj.addEventListener( "CPAPI_SLIDEENTER", function( e )
      {
slideData = e.Data;  

eventEmitterObj.addEventListener( 'CPAPI_VARIABLEVALUECHANGED', runSlideTimer, 'cpInfoCurrentFrame' );
      
   });
  }
}
}

function runSlideTimer()
{
window.audioDuration = cp.movie.am.slideAudios[ slideData.audioName ].duration.toFixed(0);
window.audioTime = cp.movie.am.slideAudios[ slideData.audioName ].nativeAudio.currentTime.toFixed(0);
}

</script>

Achieving what you want is not as simple as you might like with default Captivate Advanced Actions and Variables.  Your best option would probably be to use JavaScript instead.

Here's why:

Captivate's timeline is based on frames.  There are usually about 25-30 frames per second, depending on how you have it set up.  There is a System Variable called cpInfoCurrentFrame that allow you to display the actual frame number of the entire project at any given moment.

But in order to display the exact second at any point you would need to divide that current frame number by the number of frames per second configured in Preferences for that particular project.  However, the next problem is that you can only perform one of these types of calculations with an Advanced Action using the Expression action, and you can only trigger one of these actions with an Event.  And events are things like On Slide Enter or at the click of a button etc.  There is no default event that you can trigger automatically to perform this calculation every second or at every frame change.

So although you can definitely use Advanced Actions to find out the frame number at the beginning of a slide's timeline,and then display the frames/seconds at points where you have an event available to trigger the action, displaying a changing value of the exact number of seconds at any point in that slide would only be possible with some custom JavaScript programming.