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A sequence can contain different types of assets, in
different formats, and with various different parameters. However,
Premiere Pro performs best when the settings for a sequence match
the parameters of most of the assets used in that sequence. To optimize
performance and reduce rendering times, find out the following parameters
for the primary assets you want to edit before creating a new sequence.
After learning the asset parameters, you can create a sequence with
settings to match. If you will need to capture the assets from a
tape-based device, you will need to know these parameters also to
select the correct capture settings.
recording format (e.g. DV, or DVCPRO HD)
file format (e.g. AVI, MOV, or VOB
frame aspect ratio (e.g. 16:9, or 4:3)
pixel aspect ratio (e.g. 1.0, or 0.9091)
frame rate (e.g. 29.97 fps, or 23.976 fps)
timebase (e.g. 29.97 fps, or 23.976 fps)
fields (e.g. progressive or interlaced)
audio sample rate (e.g. 32 Hz, or 48 Hz)
video codec
audio codec
You can use a third-party application, such as the freeware applications MediaInfo
or GSpot Codec Information Appliance, to discover these parameters for
your assets. To find the codecs used to generate a file, you can
also choose Window > Show Movie Inspector in Apple QuickTime
Player.
Some assets might have been generated with codecs not supported
natively by Premiere Pro. Often, you can edit these assets after
installing the relevant codec pack from a website like codecs.com.
For example, install a QuickTime codec pack to enable your QuickTime
player to play QuickTime movies encoded with any of various codecs.
This will enable Premiere Pro to edit those QuickTime movies.
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