Apple Final Cut Pro X (10.0.9) - Manual (Page 272)

Chapter 11 Advanced editing 272
3 Drag the start point (left edge) of the video portion of the clip to the right, effectively trimming it
with a ripple edit.
The example below shows the video start point of the close-up of the man being dragged to
the right.
This creates a J-shaped split edit, with the start point of the audio overlapping the
preceding clip.
4 To complete the split edit, show separate audio for the preceding clip, and do one of
the following:
•
Drag the preceding clip’s end point to the left so that the two audio clips no longer overlap.
•
Adjust the audio (fade) level of either clip so that the audio overlap sounds natural.