Reduced to its most basic definition, editing is the process of combining video and audio elements from various sources into a coherent whole. For example, you may have one piece of video recorded in the field that shows the mayor waving to a crowd and then walking into his office and another piece of video from an interview with the mayor recorded in the studio. Through editing, you can combine these video and audio sources, discarding material you don’t need.

Using a switcher in a studio production situation, as discussed in Chapter 9, is a form of editing in real time. Here, too, you are selecting various sources of video (cameras, satellite feeds, graphics, and so forth) at appropriate times to create a coherent production. ...

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