Apple Logic Pro 9 - Manual (Page 1010)

Working with OMF Files
The OMF (Open Media Framework, also known as OMFI—Open Media Framework
Interchange) file format is typically used to exchange data with Digidesign Pro Tools
software. The OMF format only supports the exchange of audio data (audio media and
the use of this audio media in a project)—MIDI and automation data is ignored when
using the export functions.
Exporting OMF Files
To export the current project as an OMF file, choose File > Export > Project as OMF File
(or use the Export Project as OMF File key command).
Choose the required options in the dialog that opens:
• OMF File Version: You can choose to export the file in OMF Version 1 or Version 2 format.
You will usually choose Version 2. Version 1 is only useful for backward compatibility
with older software versions.
• Include audio: Turn this on to integrate all exported audio files into the OMF file itself.
This can result in a very large file, and can make file export times lengthy. Deselect this
checkbox to only write file references to the OMF file.
Note: If the latter option is chosen and you want to copy the OMF file to another hard
disk, you need to ensure that all referenced audio files are also copied.
• Convert interleaved to split stereo: As some applications don’t support interleaved stereo
files, Logic Pro can convert interleaved stereo files to split stereo (when exporting an
OMF file for a Pro Tools session, for example). Select this checkbox if this is the desired
behavior.
Note: This only works if the “Include audio” option is turned on.
• Convert 24 bit files to 16 bit: Select this option to convert all 24-bit files to 16 bit, using
the chosen dithering type. This might be necessary when using older versions of
Pro Tools.
• Dither Type: Choose None or any of the four dither algorithms (see Bouncing and
Dithering ).
1010 Chapter 32 Project and File Interchange