Sessions & Tracks : Importing and Exporting Session Data : Export Options when Exporting to AAF or OMF Sequences : Publishing Options

Publishing Options
When exporting AAF or OMF files from Pro Tools, specific publishing options that provide information about the sequence or media are available through the Publishing Options dialog. These options will vary depending on which method of exporting files you use.
OMF Options
Pro Tools Comment
Identifies the source of the file, and defaults to the name of the current session. The Pro Tools Comment field does not appear if you are using the Export Selected as Tracks command, since audio on one track may have many different sources.
Sequence Name
This is the name that will be displayed when the file is imported into another AAF- or OMF-compatible program. The sequence name is not the file name that will appear in the finder. This field defaults to the Pro Tools clip name. When exporting more than one clip, all clip names are automatically set to the clip name.
Target Project Timecode Format
This is the timecode format for the project into which this file or sequence will be imported. This may be different from the timecode format of the current session. This parameter allows clips to be placed correctly in sessions with different timecode formats, and also calculates how many samples must be added to pad clips to frame boundaries.
Time Stamping
When you export to AAF or OMF, all exported media is time stamped. A time stamp is a specific timecode location stored within an individual media file.
The time stamp can indicate:
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Time stamps can be stored in three different places within a media file:
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In the file format metadata (for example, .WAV file wrappers)
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Exporting a Clip
If you are exporting a clip, the time stamp will be the start point of the clip, relative to the point where the file originally started to record. For example, if you record a file from 1:00 to 1:30, then trim it to start at 1:15, the time stamp for the exported clip would be 1:15. This is true even if the clip is slipped elsewhere in the Timeline.
Exporting a Clip as Part of a Sequence
When you export a clip as part of a sequence, the clip’s original time stamp reflects the clip’s position in the Timeline of the sequence.
Exporting a File
Recorded in Pro Tools
If the file was recorded in Pro Tools, the time stamp is the location in the Timeline at which the recording began. For instance, if you record the file from 1:00 to 2:00, the time stamp would be 1:00.
AudioSuite
If the file was created by AudioSuite, the time stamp depends on the rendering mode used when the file was rendered. If Create Individual Files mode is selected, the time stamp of the new file matches the original time stamp of the source file. If Create Continuous File is selected, the time stamp of the new file matches the position of source file on the timeline.
Existing Time Stamp
If a file is imported with an existing time stamp, it will remain the time stamp for the exported file as well. If the original file contained a time stamp in the format wrapper, it will be copied to the OMF wrapper when exported.
Exporting a File With No Time Stamp
If you import a file that does not contain a time stamp (such as a sound effect from a CD), the time stamp will be 0 when it is exported.
Importing Files from an Avid AAF or OMF Sequence
If you import a file from an Avid AAF or OMF sequence, the media file's source tape time stamp becomes the original time stamp of the new Pro Tools file. The User Timestamp maintains the original time stamp.
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DigiBase provides columns for specific Avid OMF metadata, including Clip Name, Tape, FPS, Original Timestamp, and User Timestamp.