Classroom in a book

Adding keyframe interpolation and velocity
Keyframe interpolation changes the behavior of an effect parameter as it moves 
toward or away from a keyframe. The default behavior you’ve seen so far is linear—
in other words, you have a constant velocity between keyframes. What generally 
works better is something that mirrors your experience or exaggerates it, such as 
a gradual acceleration or deceleration or super-fast changes.
Adobe Premiere Pro offers two ways to control those changes: keyframe interpola-
tion and the Velocity graph. Keyframe interpolation is the easiest—basically two 

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LESSON 9
Adding Video Effects
clicks—while tweaking the Velocity graph can become a full-time occupation. 
Getting a handle on this feature will take some time and practice on your part.
For this lesson, you’ll use the Motion fixed effect. Its Position, Scale, and Rotation 
parameters all lend themselves to speed changes.
1
Open Lesson 09-3.prproj.
2
The title Sir Drake is over the Medieval_villain_01.mpeg clip. Click the title clip 
to select it.
3
Stretch the Effect Controls panel as wide as you can without covering up other 
workspace elements you need to see. If you put it in a floating window, leave 
room to view the Program Monitor.
4
Open the Effect Controls panel’s Timeline (click the Show/Hide Timeline View 
button).
You will be adding four Rotation keyframes: the first frame, the last frame, and 
two more frames spaced in between.
5
Position the current-time indicator at the beginning of the clip, expand the 
Motion effect, and click the Rotation effect’s “Toggle animation” button. This adds 
a keyframe at the beginning of the clip with the default parameter value of 0.
6
Drag the current-time indicator to the three other positions, and click the 
Add/Remove Keyframe button in each spot.
Your Effect Controls panel should look like the one shown here.