Apple iMovie Manual do Utilizador descarregar pdf (Página 17)

ITS - Technology & Learning Services Page 14

Luanne Eris Fose, Ph.D.

3. iMovie presents a Restore Clip Media dialogue box which tells me how much footage

was removed from the footage and asks if it is ok to restore. Click the OK button.

4. iMovie will restore the media to the clip and remove it from the Trash.

Reversing Motion in a Clip

You can make a clip play backward if you wish; however, the reverse-motion effect can only be

applied to an entire clip. If you want to make only a few frames play backwards, separate those

frames into their own clip by first splitting the clip.

To reverse clip direction:

1. Select the clip you want to reverse down in the Clip Viewer. (Note: You can also do

this in the Timeline Viewer or the Clips Pane).

2. Choose Advanced > Reverse Clip Direction (Command-R)

3. Now when you play the clip, you will see it play backwards.

4. If you want to return the clip to its original direction, select Advanced > Reverse

Clip Direction once more and it will be restored to the original motion direction.

Adjusting the Speed of a Video Clip

You can add slow- and fast-motion effects using the clip speed slider that appears below the

Timeline Viewer. If you know that a video clip needs to fit into a certain amount of time (for

example to match with an audio clip, etc.), a slight change in speed can assist you with this

task.

1. Click on the Timeline Viewer and select the clip you want to speed up or slow

down.

2. Move the Clip Speed Slider left toward the rabbit to speed it up or right toward the

turtle to slow it down.

Figure 12: Clip Speed Slider

3. Note that each tick mark below the slider means 2X. Thus, if you move the slider

one tick to the right, you will slow down the clip by 2X; if you move the slider one

tick to the left, you will speed up the clip by 2X.

4. Click on the Play button and see the effect in the iMovie monitor window.

5. The size of each clip in the Timeline Viewer will correspond to its length in the movie

to give you a visual indication of how long each of your movie elements last. If you

slow down the clip, the selected clip in the Timeline Viewer will appear longer; if you

speed up the clip, the selected clip will appear shorter in the Timeline Viewer.

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 42 43

Sem comentários

Apple iMovie Manual do Utilizador Página 17