Adobe Premiere Pro CC
Set sample-based audio In and Out points
In and Out points are set at time-base divisions—that is, between video frames. Although frame-based edits are adequate for audio as well, some audio edits require greater precision. For example, you may want to place an In point between two words in a sentence, but the tiny division between words doesn’t conveniently fall between frames. Digital audio, however, isn’t divided into frames, but into audio samples, which occur far more frequently. By switching the Source Monitor’s or sequence’s time ruler to audio samples, you can set more precise audio In and Out points.
Source Monitor set to display audio units for more precise editing of an audio clip
Link and unlink video and audio clips
In the Project panel, clips that contain both video and audio appear as a single item, represented by . When you add the clip to the sequence, however, the video and audio appear as two objects, each in its appropriate track (provided you specified both the video and audio sources when adding the clip).
The video and audio portions of the clip are linked so that when you drag the video portion in a Timeline panel, the linked audio moves with it, and vice versa. For this reason, the audio/video pair is called a linked clip. In a Timeline panel, each part of the linked clip is labeled with the same clip name, which is underlined. The video is marked [V] and the audio is marked [A].
Ordinarily, all editing functions act on both parts of a linked clip. When you want to work with the audio and video individually, you can unlink them. When you do, you can use the video and audio as though they were not linked; even the clip names no longer appear underlined or bear the [V] and [A] labels. Even so, Premiere Pro keeps track of the link. If you relink the clips, they indicate whether they have been moved out of sync, and by how much. You can have Premiere Pro automatically resynchronize the clips.
You can also create a link between previously unlinked clips. This is particularly useful if you need to synchronize video and audio that were recorded separately.
You can link video only to audio—you cannot link a video clip to another video clip. You can link a video clip to multiple audio clips, or multiple audio clips together.
- To link video and audio, Shift-click a video and audio clip, or a series of audio clips to select them, and then choose Clip > Link.
After unlinking a clip, video remains selected while audio becomes deselected.
(Optional) To use a set of linked clips multiple times, create a nested sequence from the set of synchronized clips, and place the nested sequence in other sequences as desired. For more information, see Create a nested sequence from a selection of clips.
Move Into Sync
Shifts the selected video or audio part of the clip in time to restore sync. Move Into Sync moves the clip without regard to adjacent clips and overwrites any clips to regain sync.
For information about synchronizing multiple clips with each other for a multi-camera edit, see Synchronize clips with markers.
Create split edits
Ordinarily, you set one In point and one Out point for a source clip. Even if it’s a linked clip (a clip containing video and audio tracks), In and Out points apply to both tracks of the clip. Set in a sequence, the audio and video of the standard clip appear at the same time. Sometimes you want to set the video and audio In or Out points independently, however, in order to create split edits (also known as L-cuts and J-cuts). When placed in a sequence, a clip trimmed for a split edit will have its audio appear before its video, or its video before its audio.
A. Clip trimmed for J-cut B. Clip trimmed for L-cut
If nothing happens, make sure that before you start dragging, you position the pointer over the visible audio edit point, not over an applied audio transition.
Although it’s common to create split edits after clips are assembled into a rough cut, it’s possible to trim clips for split edits in the Source Monitor before adding them to the sequence.