This is about as simple a live switched event as can be. At the bare minimum, you need multiple cameras, a video mixer, and a director. There are several pieces required to mix any live event. Instead of recording all the cameras and then trying to edit through all the footage later, mixing the video live, while the event happens, gives you a master tape that generally needs only a little bit of trimming to make it fit a given time slot for broadcast TV. On the set of the live-switched (to tape) PBS cooking show Flavors of America This event happens in front of multiple cameras, like a TV sitcom, or even a cooking show, such as the live-switched PBS program Flavors of America, which I worked on for more than a decade. Live switching is also used in a somewhat less "live" situations called "Live to tape" where the event is something you can start and stop as needed. The Director is the person who "calls the shots" and determines which camera is "live." Multiple cameras, sometimes more than 20, are put to the task of showing different aspects of the game. Think of watching any sporting event today. But today, "mixer" and "switcher" are often used interchangeably.Ī video mixing station from Grass Valley switching a football game broadcast A video mixer, on the other hand, enables smooth dissolves, wipes, picture-in-picture, keys, and other effects between the live feed and other sources. This requires a video mixer.Ī video switcher is a device that makes a hard connection between video sources and destinations. But when using multiple cameras for a live event that is either shown in the room on big screens (often called IMAG for IMage MAGnification) or shown somewhere else via broadcast, recording, or streaming, you'll need a way to switch between the different cameras as the event happens.
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