User Manual

Specifications for Importing OMFI Files
1458
Specifications for Importing OMFI Files
OMFI was developed by Avid Technology, Inc. and many industry and standards partners for the
interchange of digital media data between platforms and applications. For information about
creating an OMFI file on a non-Avid application, see the documentation for the application.
The information in the following table applies to importing OMFI files.
Option Description
Frame or Edit rate You must import sequences and clips to projects that have the same edit rate (29.97 fps or
23.976 fps for NTSC, 25 fps for PAL, 24 fps for film). If the edit rates do not match, you
receive an error message.
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Your Avid editing application cannot import an OMFI audio file that was produced
with an edit rate equal to the audio sampling rate. If you try to import such a file you
receive an “Unrecognized file type” error message. Create the source file with an edit
rate at the project edit rate (29.97 fps, 25 fps, 24 fps, or 23.976 fps).
Resolution For optimum import speed and quality, export or render the file from the source application
at the resolution you want, and then import the file into your Avid editing application at that
resolution. For more information, see “Import Settings: OMFI/AAF Tab” on page 1417.
OMFI version Avid editing applications recognize and support OMFI 1.0 composition and media files and
OMFI 2.0 composition files.
The following OMFI 2.0 effects are supported generally:
• Video effects: dissolves, wipes, freeze frame, film pulldown, slow motion, fade to black
• Audio effects: pan and volume, audio dissolves
You can import other effects from other Avid applications.
Film pulldown To import audio media, set the pulldown switch to 1.0.
Audio sample rate Audio media imports at the sample rate that is set in your Avid editing application.
n
Avid editing applications cannot import an OMFI audio file that was produced with
an edit rate equal to the audio sampling rate. If you try to import such a file you
receive an “Unrecognized file type” error message. Set the edit rate to the project edit
rate (29.97 fps, 25 fps, 24 fps, or 23.976 fps).
File transfer If you transfer an OMFI file over a network, transfer it as a binary file.
Reimporting Avid
media files
If you import OMFI files that contain media you exported from the same system, you need
to delete the original media. Otherwise, the new media does not overwrite the original
media. To learn how to find related media files for a sequence, see “Finding a Related Media
File” on page 466.