Adobe Premiere Pro CS4 - Manual (Page 298)

292 USING ADOBE PREMIERE PRO CS4
Effects and transitions
Last updated 11/6/2011
You create variable speed changes by applying speed keyframes. You can apply speed keyframes in the Effect Controls
panel, or in a clip in a Timeline panel. Applying speed keyframes in either location is like keyframing Motion, Opacity,
or any other keyframe effect, with one notable difference: a speed keyframe can be split to create a transition between
two different playback speeds. When first applied to a track item, any change in playback speed on either side of a speed
keyframe is instantaneous at that frame. When the speed keyframe is dragged apart and spread out beyond one frame,
the halves form a speed change transition. Here, you can apply linear or smooth curves to ease in or ease out the change
between playback speeds. See the video tutorial, Variable Speed Changes, at
www.adobe.com/go/vid0235 , or the video
tutorial, Time Remapping In Premiere Pro CS3, on the Creative COW website .
Footage is displayed at constant speed in one direction.
Time-remapping distorts time for range of frames within clip.