Adding Audio to Your Slideshow

You can assign one audio file to each slide or add one or more audio files to the overall slideshow. The method you choose depends on the type of slideshow you are creating.

Assigning an Audio File to Each Slide

You can assign an audio file to each individual slide in a slideshow. You can use the same audio file multiple times, or only add audio to a few slides and leave the others silent.

Important: You cannot add audio files directly to slides as long as there is an overall audio file assigned to the slideshow. See Assigning Overall Audio Files to the Slideshow for information on removing overall audio files from a slideshow.

To assign audio to a slide using the Slideshow Editor
  1. Select the audio file in the Assets tab, the Palette, or a Finder window.

    Note: You can only add one audio file at a time when assigning them to slides.

    Figure. Slideshow Editor showing an audio file being dragged to a slide.
  2. Drag the file to a slide in the Slideshow Editor. When you pause the pointer, a black box surrounds the slide the audio will be assigned to.

  3. Release the mouse button when the correct slide is selected.

    The slide’s duration changes to match the length of the audio file. You cannot change the slide’s duration to a different value.

  4. Press the Space bar to play the slide with its audio. Press the Space bar a second time to stop playback.

To assign audio to a slide using the Slide Inspector
  1. Select the slide to which you want to add audio.

  2. In the Slide Inspector, choose the audio asset to assign to the slide using the Audio File pop-up menu.

The Audio File pop-up menu in the Slide Inspector only allows you to choose from files already imported into your project.

To change the audio file assigned to a slide
Do one of the following:
  • Drag a new file to the slide in the Slideshow Editor.

  • Choose a new file with the Audio File pop-up menu in the Slide Inspector.

To delete an audio file assigned to a slide
Do one of the following:
  • Select the audio file in the Audio column in the Slideshow Editor, then press the Delete key. Make sure you only select the audio portion of the slide.

  • Choose “not set” from the Audio File pop-up menu in the Slide Inspector.

Note: All audio files used within a slideshow must be the same type and use the same resolution and bit rate.

Assigning Overall Audio Files to the Slideshow

You can assign one or more audio files to a slideshow as overall audio files. This allows you to have audio files that are not specific to a single slide. When you assign overall audio to the slideshow, you can choose whether the slide or audio durations determine the slideshow’s duration.

To assign overall audio files to a slideshow
  1. Select the audio file or files in the Assets tab, the Palette, or a Finder window.

  2. Do one of the following:

    • Drag the file or files to the audio well in the Slideshow Editor.

      Figure. Slideshow Editor top section showing the audio well.

      The audio well shows how many overall audio files are assigned to the slideshow.

    • Drag the file or files to the Audio section in the Slideshow Inspector’s General tab.

      Figure. Audio section of the General tab of the Slideshow Inspector.
  3. Do one of the following to choose one of the two Slideshow Duration options:

    • Choose Fit To Audio, Fit To Slides, or Fit To Slides and Loop Audio from the Slideshow Editor’s Settings pop-up menu.

      Figure. Settings pop-up menu from the Slideshow Editor, used to choose a slidshow duration.
    • Select either Fit To Slides or Fit To Audio in the Slideshow Inspector’s General tab. If you select Fit To Slides, you can also select the Loop Audio checkbox.

      Figure. Slideshow duration section of the General tab of the Slideshow Inspector.

      Use Fit To Audio to calculate a slide duration value that is applied to all slides, based on the length of the audio file. The duration ensures the slides and the audio finish at the same time and that all slides appear for the same amount of time.

      There are several things to be aware of when using Fit To Audio:

      • Each slide’s duration automatically updates if you add or remove slides or overall audio files in the slideshow.

      • Using a short audio file with Fit To Audio can cause the audio to finish before the slides, because the slides cannot be set to durations shorter than their minimum duration (15 frames for NTSC or 12 frames for PAL projects). The minimum duration for the slides increases when one or more of them uses transitions.

      • All slide duration controls are disabled when Fit To Audio is selected.

      Use Fit To Slides to leave each slide’s duration as is. When the slideshow is played, most likely the audio will not finish at the same time that the slides finish appearing.

      • If the slides finish first: The audio is clipped off. (The Loop Audio setting has no effect.)
      • If the audio finishes first: The slides continue playing in silence. With Loop Audio selected, the audio loops back to its beginning and continues playing if it reaches its end before the slides.
  4. Select the first slide and press the Space bar to play the slideshow with its audio.

Important: Adding an overall audio file automatically removes any audio files assigned to individual slides. As long as there is an overall audio file assigned to the slideshow, you cannot add audio files directly to slides.

To change the assigned audio files using the Slideshow Inspector
Do one of the following:
  • Select one or more existing files and press Delete to remove them from the slideshow.

  • Drag an existing audio file to a new location in the list to change its order.

  • Drag one or more new audio files to the list to add them to the slideshow.

    You can also drag additional audio files to the audio well in the Slideshow Editor to add them to the end of the list.