Specifications

DigiTranslator Integrated Option Guide
30
Quantize Edits to Frame Boundaries
Pro Tools allows sample-accurate placement of regions.
In Pro Tools, you can place a region of any length at any
position, without any requirement for aligning regions
with frame boundaries.
However, most video editing programs, such as Media
Composer, only support frame-accurate editing. In
these programs, you can only edit sounds on whole
frame boundaries, limiting your precision.
Selecting Enforce Avid Compatibility will automatically
select Quantize Edits to Frame Boundaries.
The Quantize Edits to Frame Boundaries option allows
DigiTranslator to export your sample-accurate Pro Tools
edits into an AAF or OMF file so they appear as frame-ac-
curate. See Figure 1 through Figure 4 on page 30.
When you quantize edits to frame boundaries, you must
enter the desired handle size (length) under Audio Me-
dia Options. See “Consolidate Handle Size (Millisec-
onds)” on page 32.
A master clip consisting of the region plus the handle
size (length) on both front and back will be exported.
The exported sequence creates a subclip which is equiv-
alent to the original region, but extended to the farthest
frame boundaries. For example, if the region starts at
1:15 and 500 samples, the subclip would start at 1:15;
and if the region ends at 4:00 and 500 samples, the sub-
clip would end at 4:01.
Because quantizing edits to frame boundaries extends
the regions, extra undesired audio may be heard. To pre-
vent this extra audio from playing, special one-frame
sound files are rendered to duplicate the original bound-
aries of the region. In the exported sequence, these one-
frame files are placed over the start and end frames of
the extended region so you cannot hear the extension.
The Quantize Edits to Frame Boundaries setting
must be selected when you are translating your
Pro Tools session for use in frame-accurate editing
workstations. Therefore, it is automatically se-
lected whenever you export tracks with Enforce
Avid Compatibility checked.
Figure 1. Original region
Figure 2. Region exported with handles
Figure 3. Subclip: Region stretched to farthest frame
boundaries
Figure 4. Subclip with OFFs (One-frame files) laid over end
frames