User`s guide

Animating Shapes, Filters, and Containers
225
Keyframing Volume and Balance
You can animate an Audio track’s volume and balance in the timeline by placing keyframes
in the audio track’s Volume and Balance tracks. The following example describes a simple
Volume animation. You can keyframe the balance on an Audio track the same way.
To create a volume animation:
1. Expand the Audio track to view the Sound Parameters and Audio Waveforms tracks.
2. Expand the Sound Parameters track to view the Volume and Balance Tracks.
3. Expand the Volume track.
4. Move the position indicator to the beginning of the timeline.
5. In the Controls window (Sound Parameters tab), set the volume interpolation to Ease
In/Out.
A keyframe appears in the Volume track.
6. Enter a value of 0 for the volume for this keyframe.
7. Move the position indicator in the middle of the timeline.
8. Deselect the first keyframe.
9. In the Controls window, set the volume interpolation to Ease In/Out.
10. Type a value of 180.
A keyframe appears with red Bézier handles.
11. Move the position indicator to the end of the timeline.
12. In the Controls window, change the volume interpolation to Ease In/Out.
A new keyframe appears with red Bézier handles.
13. Drag the Bézier handles to ramp the volume gradually.
For information on how to use value and velocity curves in Volume and Balance tracks,
see “Manipulating the Value Curve” on page 229 and “Using Velocity Curves” on
page 230.