Definition
Sign language interpretation is available for audio and video content.
Examples
Example 1 — EPUB 3
<meta property="schema:accessibilityFeature">
signLanguage
</meta>
Example 2 — EPUB 2
<meta name="schema:accessibilityFeature"
content="signLanguage"/>
Example 3 — Audiobooks
"accessibilityFeature": ["signLanguage"]
Explanation
The signLanguage
value is used to indicate that sign language interpretation is included for any auditory
content.
Although captions and audio descriptions serve a similar purpose, many readers who are deaf prefer sign language interpretation as it is their primary means of communication so quicker and easier to follow.
Note
HTML does not offer a simple mechanism for synchronizing sign language interpretation with a video. If interpretation is not part of the video stream, authors will have to provide a separate video overlay or play interpretation side-by-side with the video.
Related Links
- Schema.org — accessibilityFeature
- Schema.org Accessibility Vocabulary — signLanguage