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A subtitle editor is a type of software used to create and edit subtitles to be superimposed over, and synchronized with, video. Such editors usually provide video preview, easy entering/editing of text, start, and end times, and control over text formatting and positioning. Subtitle editors are available as standalone applications, as components of many video editing software suites, and as web applications. ==Purpose== In television, subtitles are used for "clarification, translation, services for the deaf, as well as identifying places or people in the news." In movies, subtitles are mainly used for translations from foreign languages. Subtitles are frequently used to provide informative details regarding the action on screen, such as the names and titles of interview subjects,〔Cotrell Bryant, p. 329〕 a discussion topic change, to spell out web URLs or email addresses, to assist understanding speakers who mumble, details in instructional videos such as recipe ingredients, and humorous effects such as commentary or contradictory captions.〔Cotrell Bryant, p.160〕 Each subtitle, during editing, consists of text, a start time, an end time or duration, and optional text styling and positioning.〔Sahlin, Doug (2003). (How to do everything with Adobe Encore DVD ). McGraw-Hill Osborne Media. p. 262. ISBN 978-0-07-223190-8〕 Time is measured either in video frames, in milliseconds, or in hours:minutes:seconds.frames/milliseconds. The exact format and separator characters(colon, period, comma, etc.) are determined by the subtitle format chosen. A capable subtitle editor can convert one time measurement system into another without error. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Subtitle editor」の詳細全文を読む スポンサード リンク
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