This involves how the text interacts with the cinematography.
: Subtitles should appear exactly when a person begins speaking and disappear shortly after they finish. subtitle Coherence
: Text must be placed within the "Title Safe" area to prevent it from being cut off by different screen aspect ratios. This involves how the text interacts with the cinematography
The relationship between sound and sight is governed by "lead-in" and "lag-out" times. subtitle Coherence
: According to research on the Semiotics of Subtitling , subtitles should ideally not "hang" over a camera cut. A cut signals a new visual idea; keeping an old subtitle across a cut can cause the viewer to re-read the same line.