Specifications

Chapter 5: Exporting AAF, MXF, and OMF from Pro Tools
31
One-frame files (OFFs) are imported into Avid worksta-
tions as part of the AAF or OMF sequence like any other
sound file. In the Avid Timeline, they appear as one-
frame edits on either side of a subclip.
If you decide you need to extend the subclip at any
point, discard the OFF and trim the subclip as needed.
Sample Rate Conversion Options
These settings allow you to convert the sample rate of
your Pro Tools session during export to AAF or OMF by
sample-rate converting each audio file, and adjusting
the edits in the resulting AAF or OMF file to compensate
for this change.
You might want to change the sample rate of a session if
you are exporting to a system or are at a stage in the pro-
cess that requires a different sample rate.
For example, your session contains audio media at
29.97 fps (NTSC video) at 48 kHz, while the film com-
poser to whom you are exporting your session requires
audio media at 24 fps (film speed) at 48 kHz. To convert
all the audio files and edits to play back at 24 fps (film
speed) at 48 kHz, you would set the Source Audio Sam-
ple Rate setting to 48,048 (a pull-up rate of 0.1%) and
the Destination Audio Sample Rate to 48,000. These set-
tings tell Pro Tools that you want to fit 48,048 of the
original video speed samples into 48,000 of the new
film speed samples. With these settings, you sample-rate
convert the video material to film speed.
Source Audio Sample Rate
This setting allows you to specify the sample rate of the
material you are working with in Pro Tools, indepen-
dent of the session’s sample rate settings.
Destination Audio Sample Rate
This setting allows you to specify the sample rate for au-
dio files after the AAF or OMF translation.
If this setting differs from the Source Audio Sample Rate
setting, audio is sample-rate converted digitally to the
Destination Audio Sample Rate.
This solution is only available when you export a
sequence, not when you export individual files.
If Quantize Edits to Frame Boundaries is selected,
Pro Tools volume automation will not be ex-
ported.
Sample Rate Conversion Options
See “Speed Correction for Film, NTSC Video, and
PAL Video Using DigiTranslator” on page 43, for
information about converting between different
speeds and sample rates using DigiTranslator.
Check the Audio and Video pull options before ap-
plying a sample rate conversion to the entire ses-
sion.