Question

how can we insert sound to a slide​

Answer 1

Answer:

if you are making a video then you will get a option down...

Answer 2

Select an audio file to insert

In Normal view, click the slide that you want to add a sound to. On the Insert tab, in the Media group, click the arrow under Audio. In the list, click Audio from file or Clip Art audio, locate and select the audio clip that you want, and then click Insert.