Adobe Premiere Pro CS4 - Manual (Page 215)

209 USING ADOBE PREMIERE PRO CS4
Editing Audio
Last updated 11/6/2011
More Help topics
“ Trim with Trim-in and Trim-out tools ” on page 168
Switch a time ruler to audio units in the Source or Program Monitor
❖ In the Source or Program Monitor panel menu, choose Show Audio Time Units.
Navigate audio in sample view
1 Switch the time ruler in the Source Monitor or Timeline panel to audio units.
2 To navigate, do one of the following:
• Drag the current-time indicator in the time ruler to navigate smoothly through the clip.
• Click the Step Forward or Step Back buttons to move the current-time indicator one audio sample at a time.
3 To zoom in or out, drag either end of the viewing area bar in the time ruler of the Source Monitor or Timeline panel.
Trim audio in sample view in a Timeline panel
1 In a Timeline panel menu, choose Show Audio Time Units. The time rulers in a Timeline panel and Program
Monitor switch to a sample-based scale.
2 If necessary, expand the audio track containing the clip you want to edit, click the Set Display Style button , and
choose Show Waveform.
3 View the audio In point or Out point of the clip you want to edit in detail by dragging the zoom slider to the right.
4 Trim the clip by doing one of the following:
• To adjust the In point, position the pointer over the left edge of the clip’s audio so that the trim head tool
appears, and drag left or right.
• To adjust the Out point, position the pointer over the right edge of the clip’s audio so that the trim tail icon
appears, and drag left or right.
5 Use the waveform display or play the audio to make sure that you adjusted the In and Out points properly.
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.