7.0

99
High Definition on the Timeline
Combining SD and HD Clips in the Same Sequence
As mentioned above, you can combine all possible formats and resolutions on the Timeline. Each time
you create a new Sequence, however, you define a specific output format for each Sequence so that a uni-
form master of the Timeline can be output. Clips that do not exactly match the defined output format are
converted to the master format. This includes
 Frame rate (fps) -
This property is adapted automatically by duplicating or eliminating frames. One second is
always one second; each clip always retains its original length. The system initially tries to accom-
plish this by performing a realtime adaptation (also see “Different Timecode Systems” on page
87).
 Interlaced/progressive -
Automatic adaptation to a uniform interlaced or progressive mode.
 Aspect ratio -
This adaptation must be defined for each clip individually (or for several together) in the clip
Properties. According to the default setting, each clip initially retains its original aspect ratio.
 Image resolution (size) -
Images that are too big or too small are initially centered in the Master Viewer inlay; clips that are
too big are partially trimmed and those that are too small are displayed with black bars of varying
widths. In order for these clips to fill the inlay, set the Scaling option in the clip Properties accord-
ingly.
An NTSC clip in an HDV 720p Sequence is initially displayed with a black border but can be
expanded to fill the window by changing the resolution to 1280 x 720 pixels. Note that this
“upgrade” from SD to HD will not improve image quality (sharpness or richness of detail).