There are a few points to be aware of when trimming one side of an edit point. Thinking of trimming in "time values" might help you understand a trim's outcome. In other words, at what chronological point in time did the event in the scene you have edited take place? A trim's outcome depends on the value of that trim (positive or negative) and which side of the edit you are working on. Think about this in relation to when an event took place. If you trim ahead on an outgoing clip, you see what happened at a later point in time. If you trim in the opposite direction, at your edit point you see what took place at an earlier point in time. This principle also works the same for the incoming side of an edit, so you don't have to think in positive and negative values. Here are a few points to explain what happens during a single-side trim:
tip Trimming one side of an edit can effect audio and video synchronization if not all tracks are selected. See Chapter 8, "Audio Sweetening for Perfections," for more details on working with synced tracks. With that last point, notice the opposite effect going on here. Adding time to a clip (increasing its duration) does not always mean that you work with a positive trim value. You must pay attention to which side of the edit you are working on. |