Adobe Premiere Elements 12 - Manual (Page 107)

Changing clip speed and duration
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Note:
Note:
Change a clip’s speed
Set the duration of a clip
Reverse the playback of a clip
Change a clip’s speed
To create a fast- or slow-motion effect, change clip speed. Changing clip speed changes the clip’s duration. Speeding up a clip removes frames,
thus shortening the clip duration. In the same way, slowing down a clip repeats frames and thus adds to the length of a clip. For audio clips, a
change in speed also changes pitch. The Time Stretch command includes an option to maintain the original pitch of an audio clip at any speed.
You can change a clip’s speed using the Expert view timeline only. Not the Quick view timeline.
When you change the speed of a clip containing interlaced fields, you may need to adjust how Premiere Elements processes the fields,
especially when the speed drops below 100% of the original speed.
Change a clip’s speed by using Time Stretch
1. To slow down a clip that has another clip on its right in the Expert view timeline, drag it to an empty track or to the end of the movie. This
way, you can stretch it without bumping into an adjacent clip.
2. Select the clip in the Expert view timeline.
If you haven’t yet inserted the clip into the Expert view timeline, you can select it in the Project Assets panel instead.
3. Choose Clip > Time Stretch. Alternatively, click the Tools panel on the Action bar and choose Time Stretch.
4. In the Time Stretch dialog box, type a percentage for Speed. A value less the 100% slows down the clip; a value greater than 100%
increases its speed.
5. (Optional) To keep the pitch of an audio clip unchanged, select Maintain Audio Pitch.
6. Click OK. Preview your changes, and then make adjustments as necessary.
7. If you moved the clip in step 1, drag it back into place in the movie.
Change the speed and duration of multiple clips
You can change the speed and duration of multiple clips when you are in the Expert view.
1. Do one of the following to select multiple clips:
To select non-consecutive clips, Shift-click each clip.
To select consecutive clips, click in the Project Assets panel and drag a marquee around the selected clips.
To select all the clips, press Ctrl-A.
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