Adobe Premiere Pro 2.0 [Electronic resources] نسخه متنی

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Adobe Premiere Pro 2.0 [Electronic resources] - نسخه متنی

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Changing clip speed and direction: Lesson 8-3


Playing clips in reverse presents all sorts of possibilities: kids diving out of a pond, a pitcher retrieving his fastball, and an explosive cloud of dust suddenly becoming an intact building. Create even more fun or drama by adding slow or fast motion.

In this mini-lesson you will make a spinning dancer gradually slow down, stop, and then rewind.


1.

Click the Lesson 8 Practice tab in the Timeline and delete the clips you worked on in Lesson 8-2.

3.

Drag Video 8e to the beginning of the Video 1 track on the sequence.

Press the backslash (\) key to expand the view of that clip.

4.

Select the Razor Edit tool and make three cuts at 1;00, 2;00, and 3;00, turning one clip into four. Your sequence should look like the next figure.


5.

Right-click on the last clip and select Copy.

6.

Move the CTI to the end of the sequence (use the Page Down shortcut key) and press Ctrl+V (Edit > Paste).

7.

Move the CTI to the end of that newly placed clip and press Ctrl+V again.

8.

Right-click on the third clip and Copy/Paste it to the end of the sequence.


Note

You'll need to use the backslash or minus key to shrink the view as you build this sequence.


9.

Right-click on the second clip and Copy/Paste it to the end of the sequence.

10.

Copy/Paste the first clip to the end of the sequence twice. Your sequence should look like the next figure, with ten clips in all.

[View full size image]

11.

Marquee select the final eight clips.

12.

Click on any of those eight clips and drag the whole lot of them to the right, past the 18-second mark, to make room for the slow-motion clips.

The first two clips should remain in place at the beginning of the sequence.


Note

If you cut a clip's speed in half, that doubles its length. If the clip has a clip to its right, it will not double in length and push that adjacent clip to the right. Rather, it will play the first half of the clip in slow motion and discard the second half.


13.

Right-click on the second clip and select Speed/Duration (or select Clip > Speed/Duration).

That opens the Clip Speed/Duration dialog box. You have a few options:


  • Speed As a percentage. Double time is 200% and half speed is 50%.

  • Link/Unlink button If linked (default setting), changing the speed changes the length accordingly. If unlinked, the length remains the same.


Note

Speeding up the clip shortens it. If you want to maintain duration, Premiere Pro will use all available head or tail frames to fill the space left from the speed change. If there aren't enough extra frames, it speeds up the clip only to the point that it uses all the available frames to fill the original space on the sequence. If there are no head or tail frames, it shrinks the clip.

  • Reverse Speed Plays the clip video and audio backwards at whatever speed you set. You can also disassociate the audio and have it play normally. I cover that unlinking technique later in the book.

  • Maintain Audio Pitch This is a very clever feature. When audio speeds up, it normally sounds like Alvin and the Chipmunks. When it slows down, it's basso profundo. Maintaining the audio's pitch means that the audio changes speed, but keeps the original pitch.

  • Duration Instead of a percentage, you can select a specific time. This is a great tool if you want to fill a gap and your clip is not quite long enough. You could simply use the Rate Stretch tool but that wouldn't give you the option to Maintain Audio Pitch.



Rapid fire narrations



The Maintain Audio Pitch feature is great if you want to speed up an announcer's voice to fit his copy, like that end-of-commercial disclaimer common to car financing commercials.


14.

Put 75% in the Speed text box and click OK.

15.

Drag the third clip up next to the second, right-click, select Speed/Duration, type 50% and click OK.

16.

Follow the same process for the fourth clip, giving it a 25% speed.

17.

Drag the fifth clip over, right-click on it, select Frame Hold, select Hold On > Out Point, and click OK.


Note

Since the fifth clip is a copy of the fourth clip, putting a frame hold on its last frame will match the final frame of the fourth clip.



18.

Play those first five clips. The dancer should gradually slow down and then freeze.

19.

Drag over the sixth clip, right-click on it, select Speed/Duration, select 25%, click Reverse Speed and click OK.

20.

Follow that same process for the seventh, eighth and ninth clips giving them 50% and 75% and 100% speeds and checking Reverse each time.

21.

Drag the tenth clip over and put a frame hold on its In Point (that means it'll match the previous clip's out-point because it's playing in reverse).

22.

Play your sequence. It should match the Lesson 8-3 Finish sequence.


Getting that slow-mo music video look



Creating slow-motion music videos takes some preparation. How, you might ask, can the singer lip-synch while loping in slow motion on a beach?

Here's how: Create a faster version of the music and then play that while shooting the video. The singer lip-synchs at a faster rhythm, and the video editor slows down the video to match the beat of the original tune.

It takes some math to get the numbers right. Basically you slow the video down by the inverse of the speed increase. Here's one example: If you speed the music up to 150% of its original speed, you'll need to slow the video down to 67% to get the video to synchronize to the original tune. The inverse of 150% (1.5 times the original speed) is .67 (1 divided by 1.5).

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