CHAPTER 4
160
Editing Video
Changing the frame rate of a clip
You can change the number of frames displayed per second for a clip by specifying its frame
rate. Changing the frame rate does not change the speed of action unless you use the Interpret
Footage command, which changes both the frame rate and the speed of action. When you
specify a frame rate lower than that at which the clip was shot or lower than the project frame
rate, there aren’t enough source clip frames to match the project frame rate, and movement
may appear jerky. In this situation, Premiere makes up for the missing frames by repeating the
last available source frame until the next new source frame is available. However, you can apply
frame blending, which interpolates between available frames to create intermediate frames that
can make motion seem smoother. Frame blending is also useful after changing clip speed,
which also changes the frame rate.
Original frame rate
Lower frame rate; clip speed unchanged
Lower frame rate with frame blending
c00.book for PS Page 160 Tuesday, March 31, 1998 1:28 PM
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