Question

why do we use playback tab​

Answer 1

Answer:

To control how your video plays, use options on the Playback tab of the PowerPoint_generic ribbon. This tab appears on the ribbon when you select a video on a slide. (These options for a video are available after you embed or link to a video file from your computer.)

Answer 2

Explanation:

You can tell PowerPoint to play music or other audio automatically when a certain slide appears during a slide show.

There are different ways to play it automatically when you get to that slide in your presentation:

To start the audio immediately when the slide appears during the presentation, use the Audio Tools Playback tab.

To start the audio after a delayed interval of time that you set, use Animation options.