Dynamic Caption Tracking
Also known as: Word-by-Word Highlighting, Synchronized Caption Highlighting
A caption display feature that highlights or visually emphasizes the word currently being spoken in the caption text, synchronized with the audio. Dynamic caption tracking helps viewers maintain their reading position within captions and re-engage after momentary attention lapses—a common ADHD experience. The feature draws from accessibility guidelines for highlighting alternate lines in text to facilitate reading. Research found it particularly valued by ADHD viewers, with some applying it consistently across all videos to support attention recovery after distraction.
Category: accessibility · multimedia · captions
Related: Captions · Cognitive Accessibility · Video Customization