Example: Using Keyframes to Control Pan
Setting keyframes to change pan dynamically works the same way as it does with
levels. You need to set at least two keyframes to effect a change over time.
Changing pan over time is often done to achieve stereo effects such as making a car
sound zoom from left to right, or putting a particular sound effect on one side or the
other of a stereo image. If you want the car sound effect in your edited sequence to
zoom from the left to the right to match the movement of an onscreen car, here are
the steps you would take.
To set up a dynamic stereo pan using keyframes:
1
Open the car sound effect in the Viewer so you can see it in more detail.
2
Move the Viewer playhead to the beginning of the car sound effect’s waveform, right
before the car sound starts playing, and click the Pan Keyframe button to set a keyframe.
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Audio Mixing
3
Drag the Pan slider all the way to the left, so that the sound starts playing out of the
left speaker.
4
Now, move the playhead to a position after the car sound effect has finished playing.
Chapter 6
Mixing Audio in the Timeline and Viewer
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5
Drag the Pan slider all the way to the right, so that the sound ends playing out of the
right speaker. Because you’ve already set a keyframe for this clip, dragging the Pan
slider at another point in the clip automatically produces a new keyframe.
When you play back the clip, you’ll hear the car sound move from left to right.
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