Subtitle — Coherence

: Typically, subtitles follow the "six-second rule" (allowing roughly 12–15 characters per second). If the text stays on screen too long or disappears too fast, the viewer’s cognitive rhythm is broken.

The relationship between sound and sight is governed by "lead-in" and "lag-out" times. subtitle Coherence

: Breaking lines at natural linguistic points (e.g., keeping adjectives with their nouns) so the brain doesn't have to "re-parse" the sentence mid-scene. : Breaking lines at natural linguistic points (e

: Text must be placed within the "Title Safe" area to prevent it from being cut off by different screen aspect ratios. Visual & Spatial Coherence

: Ensuring the tone of the text matches the character’s social status, era, and emotional state. 2. Temporal Coherence (Timing)

: A subtitle should stay on screen for at least one second to be "readable" by the human eye. 3. Visual & Spatial Coherence