They also help people for whom English is a second language, people who process information better if presented in multiple modes (sound and text), people who are unfamiliar with the vocabulary used in the video, people who have the sound turned off on their devices, and people in noisy environments who are unable to hear the sound from their devices. Captions must be available in order to ensure audio content is accessible to people from the Deaf and Hard of Hearing community.
Typically users can toggle captions on or off using a CC button on their media player. Captions provide a text version of a video’s spoken audio, plus a description of important sounds, synchronized with the video.
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