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For the highest quality previews of sequences
on an SDI card or device connected to an external monitor, you should
use one of the uncompressed formats for preview files. Uncompressed
8-bit (4:2:2 YUV) is particularly suitable for projects meant for
SD output, while Uncompressed 10-bit (4:2:2 YUV) is best for projects
meant for HD. Additionally, with Uncompressed 10-bit (4:2:2 YUV) and
high bit-depth color rendering Premiere Pro will make use of the
color information in 10-bit assets and will upsample other assets
in a sequence to generate 10-bit preview files. Premiere Pro delivers
the best preview performance when using these preview file formats
on a system with a supported SD-SDI or HD-SDI card installed.
Both
these uncompressed formats do subsample video files
at 4:2:2 YUV, but unlike the other file formats available for preview
files, they do not then run the video data through a compressor.
They are called uncompressed because they do not add this second
layer of compression, and thereby retain much higher color depth
in the previews than the compressed formats. As a consequence, uncompressed
preview files can be quite a bit larger than compressed preview files.
- Select File > New > Sequence.
- In the New Sequence dialog box, click the General tab.
- From the Editing Mode menu, choose Desktop.
- In the Timebase menu, choose the desired frame rate,
such as 24, 25 or 29.97 frames/second.
- In the Video section, choose the desired settings for
Frame Size, Pixel Aspect Ratio, Fields, and Display Format. For
example, 1920 x 1080, Square Pixels (1.0), No Fields (Progressive
Scan), and 30 fps Drop-Frame Timecode.
- In the Audio section choose the desired settings for
Sample Rate and Display Format.
- In the Video Previews section, choose one of these sets
of preview file formats and codecs, depending on your system:
For Windows, choose Preview File Format:
Microsoft AVI and Codec: None (alternatively choose Uncompressed
UYVY 422 8bit).
For Mac OS, choose Preview File Format: QuickTime
and Codec: None (alternatively choose Uncompressed YUV 10 bit 4:2:2
or Uncompressed YUV 8 bit 4:2:2).
You may see different file format and codec choices depending
on your optional hardware capture/playback card.
- (Optional) Check the Maximum Bit Depth checkbox if your
system supports 10-bit or greater formats.
- (Optional) If you plan to use uncompressed playback again,
click Save Preset, give the preset a name and description, and click
OK.
- Enter a name for the sequence and click OK.
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