What makes a video accessible?
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Captions
Captions are text representing spoken words, such as dialogue or narration, and other meaningful sounds in the video.
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Descriptive transcript
A descriptive transcript is a full text equivalent of the content in a video — that is, of all the meaningful audio and visual information presented in the video.
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Audio description
An audio description is an additional audio track that’s added to the video to describe and give context for essential information that’s only presented visually on the screen.
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Sign language translation
New Zealand Sign Language (NZSL) is one of New Zealand’s official languages. People in the Deaf community use NZSL to communicate.
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Autoplay is disabled
Autoplay is where a video is set to start playing as soon as the web page loads — it’s best to avoid this.
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Title attribute, if video published in an <iframe>
The HTML title attribute lets people using a screen reader know that a video is present and what it’s about, so that they can play it or skip past it if they want to.