
PowerPoint
1. Insert a sound clip or music into the presentation You have 2 options to do so in
PowerPoint: 1) Insert sound to the slide Insert -> Movies and sounds (
PowerPoint 2003 or earlier versions)/Sound icon in Media Clips group (
PowerPoint 2007) -> Sound from File... 2) Insert as transition sound
PowerPoint 2003 or earlier versions: Slide Show -> Slide Transition -> Modify transition (Right Panel) -> Sound -> Other Sound
PowerPoint 2007: Animations -> Transition Sound (icon and textbox) -> Other Sound 2. Set the music to play through the presentation 1) In
PowerPoint 2003, right-click the sound's icon and select Custom Animation from the popup menu; In
PowerPoint 2007, click the sound's icon and go to Animations tab in menu, then click Custom Animation in Animations group. The Custom Animation pane will open and your sound file should be listed. 2) In the Custom Animation pane, click the arrow directly to the right of the sound icon to pull down the various options. Then select Effect Options. 3) Locate the Effects tab and Click the radio button beside Stop Playing after *** slides Put a large number in the box so the track will play throughout all your slides, even if you go back and forth among slides. PPT considers each transition a "slide," so you should put a large number as you can in there. 4) Check the settings in 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. 3. Use an add-in tool called wondershare ppt2flash. It has the feature of "Import Audio" that allow you to set background music for the whole presentation with just one click.
Click insert and then click sound clip and it should work, please trust my profile for answering!