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CHAPTER 2
62
Working with Projects
and Compressor support 256 colors. When available, click Palette and then either select Make
Palette From Movie to derive a color palette from the frames used in the video program, or
select Load Palette Now to import a color palette you prepared and saved previously. You
can load color palettes stored in the .ACO (Photoshop color swatch), .ACT (Photoshop color
palette), or .PAL (Windows palette—Windows only) format.
Frame Size
Specifies the dimensions, in pixels, for frames when you play back video from
the Timeline. Select 4:3 Aspect to constrain the frame size to the 4:3 aspect ratio used by
conventional television. A larger frame size lets you see more detail but requires more
processing. If playback is slow, try reducing the frame size. For more information, see
“About output settings” on page 297.
For more information about standard frame sizes and aspect ratios, see “Measuring frame
size and resolution” on page 344.
Frame Rate
Indicates the number of frames per second to play back video from the Timeline.
In general, type a value that matches the frame rate of the final video, or type a lower value
to process previews faster. In many cases this value should match the timebase. For more
information about specifying standard frame rates, see “Understanding frame rates in
relation to the timebase” on page 336.
Quality
Affects the picture quality and disk space used when you play back video from the
Timeline. Low quality usually plays faster and uses less disk space, and may be preferable
for editing. High quality provides the best-looking image the selected compressor can
provide, but requires more disk space and may not play smoothly on slower computers.
Data Rate
If available for the selected compressor, places an upper limit on the amount of video
data that Premiere is allowed to transfer for previews so that the video does not overwhelm
the data transfer capacity of your system. Select Limit Data Rate to _ K/Sec and type the data
rate required. If previews do not play smoothly, reduce this value. Select Recompress to ensure
that Premiere processes a video preview that stays under the data rate you specified. Select
Always from the menu to compress every frame even if it is already within the data rate, or
select Maintain Data Rate to preserve quality by compressing only the frames that are above
the specified data rate.
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