Apple Final Cut Pro X 10.1.2 User Guide

 Chapter 10    Advanced editing 3 01
Constant speed changes also usually alter the duration of a clip. By default, if a constant speed 
change causes the duration of a clip to become longer or shorter, all clips coming after it ripple 
forward or backward. If you change the speed to 50 percent, your clip becomes twice as long, 
and subsequent clips are moved to the right; if you change the speed to 200 percent, the clip 
becomes half as long, and subsequent clips ripple left. For example, if you set a...

 Chapter 10    Advanced editing 302
If you drag the retiming handle to the right, the speed of the selection decreases, the duration 
of the selection increases, and the bar above the Timeline selection turns orange.
Drag the retiming handle to the right to create 
a slow-motion effect.
If you drag the retiming handle to the left, the speed of the selection increases, the duration of 
the selection decreases, and the bar above the Timeline selection turns blue.
Drag the retiming handle to the left to...

 Chapter 10    Advanced editing 303
 1 In the Timeline, select a range, a whole clip, or a group of clips whose speed you want to change.
 2 Choose Custom from the Retime pop-up menu in the toolbar.
 3 Select a direction (Forward or Reverse), deselect the Ripple checkbox, and type a percentage in 
the Rate field.
 4 Press Return. 
The speed effect is applied to the clip, and the rest of the project remains in place.
Preserve audio pitch in retimed clips
By default, Final Cut Pro is set to preserve the...

 Chapter 10    Advanced editing 304
 1 In the Timeline, select the clip whose speed you want to change to match the rest of the clips in 
your project.
 2 Choose Automatic Speed from the Retime pop-up menu in the toolbar.
Smooth out a slow-motion clip with video quality presets
To smooth out the apparent motion of a clip playing back in slow motion, you can apply frame 
blending or optical flow analysis to the retimed clip.
 1 In the Timeline, select a range, a whole clip, or a group of clips whose video...

 Chapter 10    Advanced editing 305
Apply a preset variable speed change
You can apply preset variable speed effects that break your clip into multiple speed 
segments automatically.
 1 In the Timeline, select either a range within a clip or a whole clip to which you want to apply a 
speed ramp effect.
 2 Do one of the following:
 •To ramp the speed down: Choose Speed Ramp > “to 0%” from the Retime pop-up menu in 
the toolbar.
 •To ramp the speed up: Choose Speed Ramp > “from 0%” from the Retime pop-up...

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 4 In the Speed Transition window, click the Edit button.
A filmstrip icon appears over the end frame of the speed segment.
 5 To change the end frame, drag the filmstrip icon left or right.
Filmstrip icon
As you drag, the Viewer displays the current end frame.
Create custom variable speed changes
You can manually divide a clip into segments and assign each segment its own speed setting.
 1 In the Timeline, position the playhead or the skimmer at the frame where you...

 Chapter 10    Advanced editing 307
Add transitions between speed segments
When two adjacent speed segments are set to play at different speeds, you can control how 
smoothly the video switches between the playback speeds. When there’s no transition between 
the segments, playback shifts suddenly from one speed to another. By adding a transition 
between the segments, you can create a more gradual, or ramped, effect. You can also control 
how quickly that transition takes place.
When you apply effects...

 Chapter 10    Advanced editing 308
Transitions are automatically added to the boundaries between speed segments.
Remove transitions from all speed segments in a clip
 1 In the Timeline, select a clip that has speed transitions.
 2 Choose Speed Transitions from the Retime pop-up menu in the toolbar, so that the checkmark 
is removed.
Speed transitions are removed from all speed segments in the clip.
Remove individual speed transitions
To add transitions between some speed segments in a clip and not...

 Chapter 10    Advanced editing 309
 2 Choose Speed Transitions from the Retime pop-up menu in the toolbar, so that there’s a 
checkmark next to the menu item.
Speed transitions are added to all speed segments in the clip.
 3 To remove a transition between speed segments, double-click the last frame of the outgoing 
speed segment in the Retime Editor.
 4 Deselect the Speed Transition checkbox in the Speed Transition window, and then click 
anywhere outside the window to dismiss it.
The transition is...

 Chapter 10    Advanced editing 310
 3 Drag the left or right edge of the shaded bar in the Retime Editor. 
Reverse or rewind clips
In addition to changing the speed of a clip, you can also add directional effects:
 •Reverse: Reverses the order of frames in the clip, so that the last frame plays first.
 •Rewind: Appends a duplicate of the range selection or clip as a segment, rewinds the 
duplicated segment at 1x, 2x, or 4x speed, and then plays the original clip segment again in 
forward motion at...