On the slide, select the audio icon, and then click Play/Pause beneath the audio icon.(Optional) If you want to change or modify the standard audio file icon, use the picture format buttons on the Audio Format tab to add a frame, border, or other formatting effects to the audio icon.On the Audio Format tab, select the audio options you want. Click Audio Browser to insert audio from iTunes, or Audio from File to insert an audio clip from your computer.In Normal view, select the slide you want and click Insert > Audio.