PowerPoint
To make an inserted sound file play continuously over several slides in
PowerPoint, first, insert the audio file by going to the "Insert" tab and selecting "Audio." Next, click on the audio icon to select it, and then navigate to the "Playback" tab. Here, choose the option "Play in Background" to ensure the audio plays across slides. Additionally, set the "Loop until Stopped" option if you want the sound to repeat continuously throughout the presentation.
