Synchronize audio and video

Premiere Pro provides a method for synchronizing audio and video called Merge Clips. This function streamlines the process by which users can sync audio and video recorded separately (a process sometimes called Double-system recording). 

_{Quickly sync audio with video by using Merge clips.}

You can select a video clip and sync it with up to 16 audio channels by using Merge Clips. Clips that make up the merged clip are referred to as component clips.

Clips can be merged by group selecting them in either the Project panel or the Timeline.

You can merge one or multiple audio clips with a single video or AV clip. The total number of audio tracks permissible in a merged clip is 16, including any combination of mono, stereo, or surround 5.1 clips. A single mono clip counts as one track, a single stereo counts as two tracks, and a 5.1 clip counts as six tracks.