Speed and the keyframe graph – Apple Final Cut Pro 7 User Manual

Page 1165

Advertising
background image

Speed and the Keyframe Graph

The following illustrations show how changes to the keyframe graph affect the speed of
a clip in the Timeline. In each graph, the vertical axis represents media time, where each
tick mark up is a successive frame of your video clip. The horizontal axis represents the
Timeline, where each tick mark represents the duration of one frame playing at the
sequence frame rate.

Linear time (100 percent speed): This is represented by a straight, upward-sloping diagonal

line, in which one frame of a video clip plays in the space of one frame of the Timeline.
This is real time.

Sequence time

Linea

r time

Sour

ce time

Slow motion (less than 100 percent speed): Slow motion is represented by a line with a

more gradual slope, in which one frame of a video clip may play over perhaps three
frames of the Timeline.

Sequence time

Slow motion

Sour

ce time

Fast-forward (greater than 100 percent speed): Fast-forward speed can be seen as a

steeper line, in which several frames of a video clip play in the space of one frame of
the Timeline.

Sequence time

Fast-f

or

w

ar

d

Sour

ce time

1165

Chapter 69

Changing Clip Speed

Advertising