Have you ever had a problem where some (or all) of your sound seems to come from only one speaker? Chances are, that's because you have mono files that are incorrectly interpreted or captured. You may also have received audio that was panned during the edit session. An annoying problem, but easy to fix. Apply the Stereo Mixer Effect (Effect>Audio>Stereo Mixer). You can now correctly pan your audio tracks so the sounds are properly balanced. Conversely, you can use this effect to create stereo panning effects as well for a more " surrounding " experience.