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电视字幕是电视教材不可缺少的内容,特别是医学基础课程的电视教材,其结构的标注,理论要点的描述都需要字幕的提示,因此更离不开字幕。电视字目曾是利用人工手写,摄像机直接拍摄,用抠像法制作。此法虽有其优点和特色,但费时费力,掌握不好效果较差。目前,多数字幕已采用字幕机直接制作,其画面质量好,而且字的颜色、大小、字型均可根据需求调整,省去了许多复杂的制作过程,较省时省力。
TV subtitles is an indispensable content of TV textbooks, especially television textbooks of basic medical courses, the description of the structure, the description of the theoretical points require subtitles tips, it is inseparable from the subtitles. TV words were used to hand-written, direct camera, with the key method. Although this method has its advantages and features, but time-consuming and difficult to master the bad results. At present, most of the subtitles have been directly produced by the subtitling machine, and the picture quality is good. Moreover, the color, size and font of the words can be adjusted according to the needs, eliminating many complicated manufacturing processes and saving time and labor.