After inserting an audio file, such as a music file within your PowerPoint presentation, do you want to play this sound track across slides without any interruption when you move from one slide to another? Firstly, if a live speaker is spearheading the presentation, then you don’t want to add a sound that spans across slides. Why? Because then the sound will distract the audience, and also the speaker. However, if you are showing a sequence of slides that includes pictures and no live presenter is required to speak to the audience, then adding a sound across slides may be a great idea. Even then, a soothing background music score playing across your presentation slides can be a good fit. Stay away from loud or jarring tracks.