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 which have been recorded separately (a process sometimes called double-system recording). You can select a video clip and sync it with up to 16 channels of audio by using the Merge Clips command. Clips which make up the merged clip are referred to as component clips.
Clips can be merged by group selecting them in the either the Project panel or the Timeline. The Merge Clips command may be invoked via either the Clip menu or a contextual menu. It is a contextual command, so more than one clip must be selected in order to enable it.
You can merge one or multiple audio clips to a single video or AV clip. The total number of audio tracks permissable 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, a 5.1 clip counts as six tracks.
Creating a merged clip does not replace or alter the source clip(s).
To merge clips in the Project panel, do the following:
The Merge Clips dialog box launches. Choose from one of the following options for the point of synchronization:
Click OK. Your merged clip will now appear in the Project panel, with a name that matches the video clip, or the top-most selected audio clip (based on current sort order in the bin) if there is no video. “- Merged” is appended to the end of the new merged clip’s name. Users may rename this item, if necessary.
You can merge audio-only clips with other audio-only clips; a video clip is not required for a merged clip. You can use only one clip containing video.
To merge clips in the Timeline panel, do the following:
The Merge Clips dialog box launches.
Clips that are merged in the Timeline are synchronized from Clip Start for each component clip. To merge clips based on Clip End, Timecode, or Numbered Marker, use the synchronize function prior to merging the clips.
Synchronizing clips aligns multiple clips in the Timeline panel. After synchronizing the clips, you can create a merged clip.
To synchronize clips in the Timeline panel, first edit the clips into the Timeline panel, and then do one of the following:
The Synchronize dialog box launches. Choose from one of the following options for the point of synchronization:
Click OK. Your clips are now synchronized.
In general, working with merged clips is much like working with any other clip. There are some workflow differences worth noting, however.
Merging clips affects their behavior when you're editing them into the timeline: specifically, if the clips contain “gaps” in their component structure.
When there is another component clip available If an In or Out point is marked in a gap in the audio or video, and there is another component clip available above or below that gap, Premiere Pro uses a track for the gap when you're adding the merged clip to the Timeline.
When no component clip is available Note that it is possible to merge audio and video and have places in the merged clip where there is no other component clip in the gap. If you have marked an In or Out point in a gap, you'll receive a warning that states, “Invalid edit. No media present in source clip’s marked In/Out range” when you try to add the merged clip to the Timeline. The “no drop” icon will appear if you attempt to drag and drop the merged clip into the Timeline.
Black will play for any gap in the video. Silence will play for the gap in audio, unless there is another component audio clip available on another track.
Trimming merged clips is much like trimming any other clip, with the following exceptions:
When a merged clip is created, the metadata for each of the component clips is copied into the Metadata panel. There are some differences for displaying metadata for a merged clip. They are as follows:
Viewing metadata You can view the metadata a single component clip. To view the metadata for a component clip, choose the clip name from the File popup menu. Its metadata will appear in the metadata panel.
Entering metadata You can enter metadata to a component clip or for the entire merged clip.
The All Files display acts like a multiple clip selection: it's displayed when the property values don’t match across the selection. As with a multiple selection, when the display mode is set to All Files, any data you've entered into a property will be entered into the XMP of each component file that makes up the merged clip.
You can use the timecode from an audio master clip when you create a merged clip. You can also choose to omit the source camera audio when creating a merged clip.
Do the following:
4. Click OK.
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