Time Spent Viewing Captions on Television Programs
Time Spent Viewing Captions on Television Programs
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查看电视节目字幕所花费的时间
作者：
C. Jensema;R. S. Danturthi;R. Burch
23名年龄在14岁到61岁之间的聋人受试者在观看4个2.5分钟的带字幕的电视节目时，每秒记录30次眼球运动。分析眼球运动数据，以确定每个受试者实际观看屏幕上字幕的时间百分比。结果发现，受试者在84%的时间内注视字幕，14%的时间注视视频图片，2%的时间注视视频。年龄、性别和教育程度似乎对观看字幕的时间影响不大。当字幕速度从最慢的速度（每分钟100个字，或WPM）增加到最快的速度（180 WPM）时，花费在字幕上的时间的平均百分比仅从82%增加到86%。数据的一个显着特点是相当大的变化，从主题到主题，也在主题（从视频到视频）方面的百分比花在凝视字幕的时间。
The eye movements of 23 deaf subjects, ages 14 to 61 years, were recorded 30 times per second while the subjects watched four 2.5-minute captioned television programs. The eye movement data were analyzed to determine the percentage of time each subject actually looked at the captions on the screen. It was found that subjects gazed at the captions 84% of the time, at the video picture 14% of the time, and off the video 2% of the time. Age, sex, and educational level appeared to have little influence on time spent viewing captions. When caption speed increased from the slowest speed (100 words per minute, or wpm) to the fastest speed (180 wpm), mean percentage of time spent gazing at captions increased only from 82% to 86%. A distinctive characteristic of the data was the considerable variation from subject to subject and also within subjects (from video to video) in regard to percentage of time spent gazing at captions.