I'm trying to put together a Powerpoint presentation where a sound file (Linked to Powerpoint so it starts automatically) plays in the background whilst the slides change. I have managed to embed a sound file, but this links to a particular slide, so when the slide changes the msic stops.
Choose "Movies and Sounds" from the Insert main menu option. Depending on your preference, select "Sound From Clip Organizer", or "Sound From File", or "Play CD Audio Track", or "Record Sound". Locate the Sound file that you wish to play across any number of your slides. Insert the sound. If you don't want the sound icon to appear in the presentation, drag it off the slide. If you are asked Do you want the sound to play automatically? Select "YES". Right click the sound's icon and select "Custom Animation" from the popup menu. The Custom Animation dialog box will open and your sound file should be shown as media. Click the arrow directly to the right of the media jn the custom animation box to pull down various options. Select "Effect Options", and on the Effects tab, Select the button beside "Stop Playing after XXX slides". Select the number of slides that you would like the music to continue to play through. If you want the sound to continue through the end of the presentation, enter a very large number, for example 999. Select the Timing tab. To play automatically, the timing should be set to Start After Previous with a 0 second delay. Click OK to close the dialog box. Your music track will now continue after you leave the slide on which you placed it and play until it reaches the slide number which you entered to Stop Playing. This works in 2002 onwards.