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USING ADOBE PREMIERE PRO
Managing assets
Last updated 1/16/2012
A 4:3 frame aspect ratio (left), and wider 16:9 frame aspect ratio (right)
When you import clips shot in one frame aspect ratio into a project that uses another frame aspect ratio, you decide
how to reconcile the different values. For example, two common techniques are used for showing a 16:9 movie on a
4:3 standard television. You can fit the entire width of the 16:9 movie frame within the 4:3 television frame. This
placement leaves black bands above and below the movie frame, called
letterboxing
. Alternatively, you can fill the 4:3
frame vertically with the entire height of the 16:9 frame. Then, you pan the horizontal position of the 16:9 frame within
the narrower 4:3 frame so that important action always remains inside the 4:3 frame. This techniques is called
pan &
scan
. In Premiere Pro, you can implement either technique by using Motion effect properties such as Position and
Scale.
NTSC displays
A.
16:9 NTSC footage
B.
DVD player display using original widescreen format on widescreen TV screen
C.
16:9 image on a 4:3 TV screen
cropped using automatic pan and scan
D.
16:9 image on a 4:3 TV screen using automatic letterboxing to reduce overall frame size and display
entire image
Pixel aspect ratio
For a video that explains the basics of pixel aspect ratios, see the
Adobe website
.
3
4
16
9
A
B
C
D