Adobe PREMIERE PRO 2, Руководство пользователя, Страница: 195 / 448

ADOBE PREMIERE PRO 2.0
User Guide
189
Audio transitions
Working with audio transitions
Adobe Premiere Pro lets you apply crossfades for audio transitions between clips. An audio fade is analogous to a
video transition. For a crossfade, you add an audio transition between two adjacent audio clips on the same track.
Adobe Premiere Pro includes two types of crossfade: Constant Gain and Constant Power.
The Constant Gain crossfade changes audio at a constant rate in and out as it transitions between clips. This crossfade
can sometimes sound abrupt.
The Constant Power crossfade creates a smooth, gradual transition, analogous to the dissolve transition between
video clips. This crossfade decreases audio for the first clip slowly at first and then quickly falls off at the end of the
transition. For the second clip, this crossfade increases audio quickly at first and then more slowly as it reaches the
end of the transition.
Constant Power is the default audio transition. To specify the default audio transition, right-click either Constant
Gain or Constant Power in the Effects panel and choose Set Selected As Default Transition from the context menu.
To set a default duration for the audio transitions, choose Edit > Preferences > General. In the Preferences dialog box,
enter a value for the Audio Transition Default Duration.
See also
“Clip handles and transitions” on page 164
“Transition workflow” on page 163
To crossfade between two audio clips
1
If necessary, click the triangle to the left of each track name in the Timeline panel to expand the audio tracks that
you want to crossfade.
2 Make sure that the two audio clips are adjacent.
3
Do one of the following:
•
To add the default audio transition, move the current-time indicator to the edit point between the clips, and
choose Sequence > Apply Audio Transition.
•
To add an audio transition other than the default, expand the Audio Transitions bin in the Effects panel and drag
the audio transition to the Timeline panel, on the edit point between the two clips you want to crossfade.
To apply fade in or fade out to the audio of a clip
1 Make sure that the audio track is expanded in the Timeline panel. If necessary, click the triangle to the left of the
track name to expand the audio tracks that you want to crossfade.
2
Do any of the following:
•
To fade in a clip’s audio, drag an audio transition from the Effects panel to the Timeline panel so that it snaps to
the In point of the audio clip. You can also double-click the applied transition in the Effects Controls and choose
Start At Cut from the Alignment pop-up menu.
•
To fade out a clip’s audio, drag an audio transition from the Effects panel to the Timeline panel so that it snaps to
the Out point of the audio clip. You can also double-click the applied transition in the Effect Controls panel and
choose End At Cut from the Alignment pop-up menu.