Use
the A/V Sync button in the Player Setup menu to force audio sync
with video, even in cases where you play clips at a different framerate:
With A/V Sync enabled, audio and video
play at the framerate set in the FPS field.
With A/V Sync disabled, video plays at
the framerate set in the FPS field, but audio plays at the project's
framerate. The project's framerate appears on the Desktop in
the Format menu.
(a) A/V
Sync button
For more information
about working with audio, see
Audio.