Apple Final Cut Pro 5 - Manual (Page 1511)

160 Part II Project Interchange
4 In the OMF Audio Export dialog, choose the desired options, then click OK.
 Sample Rate: Choose an option that suits what you’re using the audio for. All of the
audio you export has the same sample rate. If you use audio with different sample
rates, it’s converted.
 Sample Depth: Choose 16- or 24-bit. The highest-quality setting is 24-bit, but choose
this option only if some of your audio media actually uses 24-bit files, or if your audio
editor requests this format.
Note: When exporting to OMF, Final Cut Pro uses the highest quality setting
regardless of what you choose in the Audio Playback Quality pop-up menu in the
General tab of the User Preferences window.
 Handle Length: Enter a value in timecode format to add handles to the audio clips.
Handles give your audio editor the flexibility needed to fix edits. Handles of 1 to 3
seconds are typical, but it’s best to check with your audio editor.
Handles are included only when there is additional audio media outside the clip In
and Out points. When there is not enough media to create the full handle duration,
Final Cut Pro includes as much of a handle as possible.
 Include Crossfade Transitions: Since some OMF importing tools do not handle cross
fade transitions correctly, and many sound editors prefer to create cross fades
themselves, you have the option to leave these out when exporting your sequence as
an OMF file by disabling this checkbox. When this option is disabled, extra source
media is substituted for the duration of the cross fade being left out. How much extra
source media will be substituted depends on whether the cross fade was edited
before, on, or after the edit point. Extra source media included as a result of this
option will be in addition to extra source media added by the Handle Length option.
5 Choose a location and enter a name for the file.
6 When you’re ready to export, click Save.
Select the desired
options, then click OK.
OMF Files Have a Two-Gigabyte Limit
OMF files that you create cannot be larger than 2 GB. In most cases, this should not
present a problem since this will accommodate approximately 7 hours of mono audio
media (depending on the bit depth and sample rate of your audio). If your sequence
exceeds this limit, you will see an error message before exporting begins.