The three-point edit is used to insert a clip into a point on the Timeline using specific reference points. The three points referred to are the In and Out-points defined in the Source Viewer and a final In-Point (or insertion point) that is placed on the Timeline.
The process is pretty much the same as what happens if you either drag a clip from the Source Viewer to a specific point on the Timeline, or if you simply place the timeline cursor there and click the Insert Source into Master button .
Usually a clip already occupies the point where you want to insert your clip and you want to overwrite it, and perhaps keep the audio track underneath. The three-point edit is often used for cutaway shots where the narration or the interview continues uninterrupted, but another image is displayed. For example, a journalist may be talking into the camera about a politician. At some point, the image may cut away to show a soundless clip of the politician who is being referred to before it cuts back to the journalist. This is known as a cutaway.
The advantage of placing a mark-in point on the Timeline is that it is simply more accurate to use your third point to carefully define the exact insertion point of your clip.
To create a three-point edit
If you want to retain the audio for the clip on the Timeline you will be overwriting, prepare it by right-clicking the clip and selecting Disband Clip(s) from the drop-down list (Figure 6.53).
Figure 6.53. Selecting Disband Clip(s) if you don't want the original audio being overwritten by the inserted clip.
Now that audio is disbanded, make sure the audio track is inactive by clicking it once to turn it gray. The audio track for this clip will now be unaffected by the added media clip.
If you don't need to retain the audio, you can ignore this step.
Load a media clip into the Source Viewer and define the mark-in and mark-out points of this clip.
These are the first two points of your edit (Figure 6.54).
Figure 6.54. Mark-in and mark-out points set for Source Viewer.
Now scrub the Timeline until you find a suitable place to insert the clip; then click the Mark-In Point button .
This creates the third point of your edit (Figure 6.55).
Figure 6.55. A mark-in point set on the Timeline.
Click the Insert Source into Master button .
The clip appears at this point in the Timeline, overwriting the existing clip (Figure 6.56).
Figure 6.56. Clicking the Insert Source into Master button sends the clip to the Timeline.
Unwanted Audio Tracks
In this three-point edit example, the original audio was disbanded and was not overwritten. However, you may now have inserted a media clip containing audio that you don't want.
To turn this off, you need to right-click the media clip in the Timeline, select Properties, and deselect any audio boxes that are not grayed out.
Figure 6.57 shows the properties for Entering car with the audio tracks A1 and A2 deselected.
Figure 6.57. The media clip's Properties screen with audio tracks deselected.
Cutting out the audio in this way is clean and effective; it also leaves the original media clip in the Project Browser untouched.