Set PowerPoint2007 slide background music loop playback

① start PowerPoint2007, click the menu bar-insert-media clip-sound, insert the background music, click on the click of the mouse to start playing.

② a small horn icon, select it, in the Option tab tick loop playback until stopped.

③ continue to click on the menu bar--Animation--Custom animation.

④ Click the effect option on the right side of the custom animation interface.

⑤ switch to the Timing tab and select the settings in the repeat until the end of the slide.