Adobe AFTER EFFECTS CS3 PROFESSIONAL User Manual page 232

On the speed graph below the keyframe, drag a marker, watching the Speed value as you drag.
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• To lower the pitch, drag the speed graph marker down.
• To increase the pitch, drag the speed graph marker up.
Remove clicks from new In and Out points
If necessary, choose panel > Audio.
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2 In the Timeline panel, select the audio (or audio and video) layer to which you applied time-remapping.
Expand the layer outline to display the Audio property and then the Audio Levels property.
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4 Move the current-time indicator to the new In point and choose Animation > Add Audio Levels Keyframe.
In the Audio panel, change the decibel value to 0.0.
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Press the Page Up key on your keyboard to move the current-time indicator to the previous frame.
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7 In the Audio panel, change the decibel level to -96.0.
Move the current time to the new Out point and set the decibel level to 0.
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9 Press the Page Down key to move the current-time indicator to the next frame.
In the Audio panel, change the decibel level to -96.0.
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You can change the decibel Slider Minimum value in the Audio Options dialog box, which is available from the
Audio panel menu.
Apply frame blending to a layer
When you time-stretch footage to a slower frame rate or to a rate lower than that of its composition, movement can
appear jerky. This jerky appearance results because the layer now has fewer frames per second than the composition.
Likewise, the same jerky appearance can occur when you time-stretch or time-remap footage to a frame rate that is
faster than that of its composition. To create smoother motion when you slow down or speed up a layer, use frame
blending.
After Effects provides two types of frame blending: Frame Mix and Pixel Motion. Frame Mix takes less time to
render, but Pixel Motion provides much better results, especially for footage that has been drastically slowed down.
Frame blending slows previewing and rendering. To speed things up, you can apply frame blending without using it
to redraw or render.
The Quality setting you select also affects frame blending. When the layer is set to Best quality, frame blending results
in smoother motion but may take longer to render than when set to Draft quality.
Note: When working with a frame-blended layer in Draft mode, After Effects will always use Frame Mix interpolation
to increase rendering speed.
You can also enable frame blending for all compositions when you render a movie.
Use frame blending to enhance the quality of time-altered motion in a layer that contains live-action footage—video,
for example. You can apply frame blending to a sequence of still images, but not to a single still image. If you are
animating a layer—for example, moving a text layer across the screen—use motion blur.
Select the layer in the Timeline panel.
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Do one of the following:
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• Choose Layer > Frame Blending > Frame Mix.
AFTER EFFECTS CS3 226
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