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Overview of AAF, OMFI and MXF Files

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hope-walker
11 diapositives · 258 Views · Nov 17, 2014

This overview delves into the essential formats of AAF, OMF, and MXF used in media editing. AAF (Advanced Authoring Format) serves as a sequence-only file, OMF (Open Media File Interchange) comprises both sequences and embedded media, while MXF (Media Exchange Format) focuses solely on audio and video media. Understanding their structures and metadata is vital for seamless project interchange between applications like Pro Tools and Final Cut Pro. This guide provides key definitions, import/export capabilities, and advantages of using these formats in post-production scenarios.

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Overview of AAF, OMFI and MXF Files
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  1. Overview of AAF, OMFI and MXF Files

  2. Represents raw audio or video and are stored in individual files Media files can be directly perceived, that is you can hear or see them Audio files contain samples; video files contain frames Media files account for most of the hard drive space used by a project Definitions: Media Files

  3. Info embedded in a media file Examples include: scene #, take, sample rate, bit depth, SMPTE frame rate, region names… Metadata cannot be directly perceived, a software application is required to see metadata Info embedded in a session or sequence file that includes what media files are used, where they appear on the timeline, etc For AAF/OMFs – info about unrendered AudioSuite effects For AAF/OMFs – info about automation (clip based gain) Definitions: Metadata

  4. AAF-OMF-MXF Basics • Allow for projects to be interchanged between different applications and editing platforms (i.e. Final Cut Pro and Pro Tools) • AAF (Advanced Authoring Format) – is a sequence only file – does not contain media –like a pro tools session file (ptf or ptx) • OMF/OMF (Open Media File Interchange) – is both a sequence and media (audio and video) file format • MXF (Media Exchange Format) – media only (audio and video) Can be used with AAFs, but not OMFs

  5. Pro Tools and AVID Terminology

  6. Embedded Media

  7. Linked Media

  8. Embedded vs Linked Media

  9. Supported AAF and OMF files for Importing to Pro Tools AAF or OMF sequences (including those with embedded audio) Individual Avid video files in the MXF or OMF format OMF audio files Note: Additional AVID video hardware/software is required for importing MXF and OMF video.

  10. Supported AAF and OMF files for Exporting from Pro Tools With DigiTranslator 2.0 or higher, you can export AAF, MXF, and OMF files from Pro Tools using: Bounce to Disk Export Regions as Files Export Selected Tracks as OMF/AAF commands.

  11. Additional Hardware /Software for Post Production In Pro Tools Advantages: Digitize (capture) video in real time into pro tools, Playback video to external monitors Dedicated video card reduces strain on CPU Enhanced compatibility with AVID systems See: http://www.avid.com/US/products/family/Media-Composer