For many people, captions are essential part of experiencing videos. While specific implementations of video captioning may differ, video providers should observe a few key aspects of effective captioning. The following information is adapted from the Captioning Key at the Described and Captioned Media Program.
Captions should be synchronized as closely as possible with the delivery of dialogue or other sounds on the screen.
Captions should include a complete, accurate, and equivalent rendering of dialogue, speaker identification, sound effects, music, and other audio information that is necessary or useful to a full experience of the video content.
Captions should be available to any person who wants to use them. While captions are often considered as a benefit to people who are Deaf or hard of hearing, captions can benefit people in a variety of situations.
For more information, visit the Captioning Key at the Described and Captioned Media Program.