Subtitle (captioning)

Subtitles are textual versions of the dialog or commentary in films, television programs, video games, and the like, usually displayed at the bottom of the screen.

Subtitles have time codes, color, size, font and location identifiers, which enable broadcasting devices and computer software to detect and display captions at the precise moment of a video.

Modern broadcasters have guidelines for lentgh (characters per line), format and speed (words per minute) of subtitles. There are seperate guidelines for individual languages, age groups or people with hard of hearing.

Coupled with translation, video subtitling is the single fastest growing segment in the whole localisation industry.