Apple iMovie HD Manuel d'utilisateur télécharger pdf (Page 6)

Trimming is the opposite of

cropping. When you crop, you

use the crop markers to indicate

which portion of a clip you want

to keep. When you trim, you use

the crop markers to indicate

what you want to delete. Drag

the crop markers left and right

to mark the footage that you

want to toss to the cutting room

ﬂoor. Then, press your key

board’s Delete key or choose

Clear from the Edit menu.

It’s best to use trimming to

remove footage from the very

beginning or very end of a clip.

If you delete footage from the

middle of a video clip, you’ll end

up with an awkward, visually jar

ring jump in the action. This kind

of sloppy splice is called a jump

cut, and it’s often a sign of

shoddy movie-making.

Then again, one director’s ﬂaw

might be another’s effect. Jump

cuts are common special effects

in music videos and other “arty”

productions.

To avoid a jump cut, put a cut

away or reaction shot at the

point where the jump cut would

be (see page 234). If you don’t

have a cutaway or reaction shot,

put a three- to ﬁve-frame cross-

dissolve transition at the jump

cut point. This is called a soft

cut, and it’s common in docu

mentaries and newscasts.

By the way, don’t confuse this

form of trimming with the direct

trimming feature described on

page 230. Direct trimming

involves changing the start or

end point of a clip by dragging

its edges in the timeline.

Trimming Clips (and the Pros and Cons of Jump Cuts)

Trashing Footage

Chances are your Clips pane will contain

clips that you don’t end up using. To

reclaim disk space, discard those clips:

select them and press the Delete key, or

drag the clips to the Trash in the lower-

right corner of the iMovie HD window.

When you crop a clip, iMovie HD doesn’t

actually discard any footage. That’s great

in that it lets you reclaim cropped footage

as described at right.

But what if you want to free up disk

space by deleting footage you know you

won’t be using? Unlike with previous ver

sions, you’re out of luck in iMovie HD 6.

Even if you split a clip, throw away one

half, and empty the trash, that deleted

footage still exists. The upside is that you

won’t accidentally delete footage you

might want later; the downside is that

you’re using more hard disk space.

For details on managing iMovie HD’s

Trash, see page 233.

Reclaiming the Past

You’re working on your movie and realize

that a shot you cropped really needs to be

longer after all. To restore the cropped

footage, select the clip, then choose Revert

Clip to Original from the Advanced menu.

The Keys to Precision

To ﬁne-tune a crop marker’s position,

select the crop marker and press the key

board’s left and right arrow keys to move

the marker in one-frame increments. To

move in 10-frame increments, press Shift

along with the arrow key. These keyboard

controls work throughout iMovie HD.

Controlling What Plays

You already know that clicking the play

button or pressing the spacebar begins

playback. You may have noticed that

what iMovie HD plays back depends on

what is selected.

You can choose to play just one item—

a clip, a title, a transition, and so on—

by selecting that item, then clicking on the

play button or pressing the spacebar. This

can be a handy way to check out a title or

transition you’ve just added. To play back a

portion of your project, select those items

by Shift-clicking, then start playback.

To play an entire project, press your key

board’s Home key, then press the space bar.

After you import video and other assets,

the real work (and fun) of building your

movie begins.

All building projects require advance

preparation, and video editing is no excep

tion. You might begin by renaming your

clips to give them descriptive names. You

don’t have to rename clips, but doing so can

make them easier to sort out and manage.

Next, you might crop a clip to remove

footage you don’t want. iMovie HD deﬁnes

cropping differently than imaging programs,

such as iPhoto. When you crop a clip in

iMovie HD, you change its length, not its

dimensions—you remove seconds or min

utes, not pixels. After cropping a clip, you

might add it to the movie by dragging it to

the timeline at the bottom of the screen.

As you perform these tasks, you’ll often

work with iMovie HD’s playhead, moving

it to the start of a clip, or dragging it back

and forth—a process called scrubbing—to

ﬁnd the portion you want to retain.

Naming and cropping—these are the

chores that prepare clips for their screen

debut. And that debut occurs when you

drag the clips to the timeline.

Working with Clips

As you adjust the crop markers, the

bottom of the iMovie HD window

(not shown here) tells you how long

the cropped clip will be.

Step 2. Click just

below the monitor,

then drag the trian

gular crop markers

left and right to

mark the footage

you want to keep.

To review your

selection, drag the

playhead left and

right.

Rename Your Clips

iMovie HD automatically names imported clips, giving them

names, such as Clip 01 and Clip 02, that aren’t exactly

descriptive. Give your clips descriptive titles, such as Bird

Close-up or Beach Long Shot, to help you identify them.

To rename a clip in the Clips pane, simply click its name and

type a new name. Or, double-click on a clip and type a new

name in the Clip Info dialog box. You can also rename clips in

the clip viewer (described on page 231).

Cropping Clips

Any clip you import may have extraneous junk at its beginning

and end. By cropping the clip to remove this excess, you can

prepare the clip for its screen debut.

Tip: If you’re planning to add a transition before or after a clip,

make the clip a bit longer than you otherwise would.

Step 1. Select the clip you want to crop. You can also

crop a clip that you’ve already added to the timeline.

Step 3. To perform the crop,

choose Crop from the Edit

menu (or press 1-K).

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iMovie HD: Making Movies

Working with Clips

iMovie HD: Making Movies

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Apple iMovie HD Manuel d'utilisateur Page 6

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