Car Video System User Manual

Media Station|PT Guide6
Pro Tools and Avid Counterparts
Pro Tools and Avid use different terms to de-
scribe the same items. For example, a Pro Tools
session is equivalent to an Avid sequence. The
following table lists common Pro Tools ele-
ments and their Avid equivalents.
AAF, OMF, and MXF Basics
AAF and OMF files are mechanisms for storing
and retrieving media data and metadata so that
projects can be freely exchanged between differ-
ent applications and platforms (such as between
Pro Tools and Avid video editing applications).
Media data and metadata enable an application
that receives AAF and OMF sequence files to au-
tomatically and quickly reassemble the compo-
sition. A simple metaphor for this approach is
that media data files are the pieces of a puzzle
and metadata is the set of instructions for as-
sembling the puzzle.
In the simplest case, only an AAF or OMF se-
quence is exchanged. If this sequence points to
existing media files, the size of the sequence file
is relatively small and the export/import process
is relatively fast.
AAF and OMF sequences can also have media
data embedded in them. This creates a single,
larger file that is slower to export and import,
but which may be easier to manage than thou-
sands of files stored on different volumes.
Pro Tools supports AAF and OMF sequences that
contain embedded audio media.
Pro Tools with DigiTranslator does not support
AAF or OMF sequences containing embedded
video media, except if you are importing such
sequences into a video satellite track. In such
cases, video metadata is imported into the track.
Pro Tools and Avid terminology counterparts
Pro Tools Avid (AAF/OMF)
session sequence
whole file region master clip
region subclip
plug-ins real-time audio effects
automation automation gain (clip-based
gain or key-frame gain)
Bounce to Disk Video Mixdown
Whole audio files in the Pro Tools Regions
List normally appear in bold type. However,
master clip audio files imported from AAF
or OMF sequences into Pro Tools will not
appear in bold type even though they are
whole audio files.
For the purposes of this user guide, AAF se-
quences are emphasized and referenced over
the older OMF sequence standard.