Grass Valley NewsEdit XT v.5.5 - Manual (Page 222)

Chapter 11 Creating Video Effects (Option)
220 Digital News Production
Working with Keyframes
NewsEdit uses keyframes to synchronize a clip’s video effects with the video
and audio. A keyframe is a set of characteristics defining the image at a specific
instant in time. Characteristics include size, location, borders, drop shadow, and
cropping but do not include the video image, which resides on the video track.
After creating an effect, insert a keyframe to mark the effect’s location and
characteristics on the Timeline. All effects need at least one keyframe.
If you want the effect to play consistently through the clip, you only need one
keyframe. If you want the effect to change throughout the clip, continue to
adjust characteristics and insert keyframes throughout the clip as necessary.
Within the Video Effects Tool, some parameters are keyframeable and some
are not. That is, if a parameter is keyframeable, the parameter can change from
one keyframe to the next. If a parameter is not keyframeable, that parameter is
used for the entire effect and cannot change across keyframes.
The type of effect is not keyframeable. See Appendix B for a list of effect
parameters and options, and whether each is keyframeable.
Indicates
which
keyframe
you are
viewing
Lists the
duration
of the
current
keyframe
Inserts a new
keyframe in
the video effect
Modifies the
keyframe
to the new
settings