Sony DVS-9000 User Manual page 111

When you change the effect duration, the keyframe duration for each
keyframe in the effect is automatically recalculated proportionally.
Keyframe number
The effect duration may also be changed by inserting or deleting keyframes.
Changes in the effect duration caused by inserting a keyframe
• When the effect is stopped on a keyframe, inserting a keyframe increases the
effect duration by the duration of the inserted keyframe.
• When the effect is stopped between two keyframes, inserting a keyframe
does not change the effect duration.
Note
In constant duration mode (see page 110), the duration of the current keyframe
is reduced to zero, and the new keyframe is inserted with the previous duration
of the current keyframe. Thus the effect duration does not change.
Insertion position
Insertion before the first
keyframe
Insertion between two
keyframes
Keyframe duration
1 2
Schematic view of keyframe duration and effect duration
Change in effect duration
0
3 4
Effect duration
1 2 3
1 2 3
1 2 3
1 2 3 4
5
4
4 5
4
5
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Keyframes