Source: W3C WAI, https://www.w3.org/WAI/perspective-videos/captions/

Visual: Web Accessibility Perspectives: Video Captions

Audio: Video isn't just about pictures, it's also about sound. Without the audio, you would have to guess what this film is about.

Visual: A man sat at a desk starts watching a video on his computer.

Audio: [no sound]

Visual: The video on his computer shows a person speaking to the camera. It is playing with no audio.

Audio: Frustrating isn't it? Not knowing what's going on. That's the situation for everyone who can't hear.

Visual: The man watching the video has a hearing aid.

Audio: Captions make videos accessible.

Visual: He turns on captions for the video playing.

Audio: Which is also handy for people who want to watch video in loud environments.

Visual: Another man is watching the captioned video with a group of people chatting away next to him.

Audio: Or where you need to be very, very quiet.

Visual: Turns out that they are in a library. The group is shushed by the librarian.

Audio: Web accessibility: Essential for some, useful for all.

Visual: The video is shown playing with the captions on.

Visual: Visit w3.org/WAI/perspectives for more information on Video Captions