final cut pro
Splitting or Deleting Portions of a Clip with the Razor Blade Tool
If you want to split a video or audio clip in two or remove a segment of a clip (such as eliminating a sound gap in your audio), you can use the Razor Blade Tool to slice out the segment of the track.
It's called a razor blade because in the traditional film editing process a tape was literally sliced with a razor blade to remove unwanted pieces of the film or rearrange segments of a film.
To do these cuts in Final Cut Pro, in the Tool Pallette click on the Razor Blade tool, which is an icon that looks like a little razor blade (or press the B Key for "blade" on your keyhboard). Your cursor will change to a small razor icon.
If you hold down your mouse button when you click on the razor blade icon you'll be able to choose between cutting a single track or multiple tracks.
If you select single track you can just slice a single track of video at a particular point in your Timeline, while leaving accompanying tracts such as audio untouched. If you select multiple tracks the cut will apply to all the tracks in your sequence at that point in the Timeline.
With the razor blade tool selected you apply the cut by clicking on a clip at the point in the Timeline where you want to make the cut. That will split the clip in two.
If you click at another point in the clip and make a second cut, you create a segment of a clip between the two cuts that you then can remove.
You now need to decide whether you want to create a gap where you're about to remove the cut segment, or if you want the remaining segments of the clip on either side of the cut piece to slide together, with no gap between them.
If you want to leave a gap, just click on the section of the clip between your two razor cuts and press the delete key. A gray area will appear on the Timeline in place of the deleted piece of the clip.
If you don't want to leave a gap and instead want the clips on either side of the cut portion to snap together, click on the section of the clip between your two razor cuts and press the shift/delete keys. The remaining segments of the clip to the left and right of the deleted piece should now slide together. Your clips should butt up against each other in the Timeline.
If you change your mind about wanting a gap between the clip segments, you can move clips separated by a gap together using the Toolbar Pallette.
In the Toolbar click on the icon that looks like an arrow. Hold down your mouse button and you'll see different options for moving clips.
For example, if you select track tool...all tracks forward, you then can click on the clip just to the right of the gap and drag it to the left until the gap is closed.
This will also drag with it clips in the rest of your tracks, such as audio tracks associated with the video clip you're dragging to the left. This way the audio and video in accompanying tracks won't wind up out of sequence.
And the track tool...all tracks forward option also will drag any clip segments further to the right on your Timeline to the left as well. Thus no gaps will be created elsewhere in the Timeline when you drag your clips to the left.
Note: Instead of deleting a segment of a clip that you created with the razor blade tool, you can instead save the segment for possible use elsewhere in the Timeline for your project.
To do this, select the unwanted segment of the clip, but instead of pressing the delete key, click on the segment with your mouse and drag it to the Browser in the upper right. It will be stored there with the rest of your clips for future use (you should rename it, so you can distinguish it from the original, full clip that's also listed in the Browser).