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7—5 画面层次概念和切换器的规模 7—5—1 画面层次前面所介绍的混合/特技(M/E)放大器每一级可以实现二个画面之间的各种过渡或将两个画面合成一个画面,也就是说可以处理两层画面,每增加一级M/E就可以增加一层画面,三级M/E就可以处理四层画面。如果最后有一级下游键,就可以在这儿层画面之前再叠上多层字幕,不论多少层字幕只算作一层画面。“三级M/E加下游键”这种切换器总共可处理五
7-5 Picture Hierarchy Concept and Switch Size 7-5-1 Picture Hierarchy The Hybrid / Effect (M / E) amplifier described above can implement various transitions between two pictures or two pictures The synthesis of a picture, that is to say, can handle two layers of pictures, each additional M / E can add a layer of pictures, three M / E can handle four layers of pictures. If there is a last-level downstream key, you can layer multiple layers of subtitles here before layering, no matter how many subtitles are counted as a single layer. “Three M / E plus downstream key” This switch can handle a total of five