Glossary
Searchable terminology from accessibility, web standards, and related fields.
29 results found in Multimedia Accessibility.
- Subtitle (Subtitles, Open captions (video), Movie subtitles)
- On-screen text that reproduces the spoken dialogue of a video, most commonly rendered in a "movie subtitle" style (white text with a black outline, one or two lines at the bottom of the frame). Subtit…
- Timed Text (Timed Text Markup Language, TTML, DFXP)
- Timed Text Markup Language (TTML) is a W3C standard for representing timed text content such as captions, subtitles, and other text synchronized with audio or video media. Originally developed as the …
- Transcript (Text Transcript, Video Transcript, Audio Transcript)
- A written document containing the complete text of spoken content from a video or audio recording, presented separately from the media rather than synchronized with it. Unlike captions, which appear o…
- Transcripts (Transcript, Text Transcript)
- A written, text-based representation of spoken audio or audiovisual content. WCAG 2.1 success criterion 1.2.1 (Audio-only and Video-only Prerecorded) requires an alternative for time-based media — typ…
- Video Annotation (Video Metadata Annotation, Multimedia Annotation)
- Video annotation is the process of adding supplementary information — such as text descriptions, captions, audio descriptions, or semantic labels — to specific segments or elements of a video. In acce…
- Video Enrichment (Enriched Video, Video Augmentation)
- The process of augmenting video content with additional elements such as captions, audio descriptions, images, audio cues, hyperlinks, or tactile outputs to make it more accessible or informative for …
- Video-Based Learning (VBL, video-based instruction, VBI)
- The use of pre-recorded or streaming video as a primary medium for teaching skills, procedures, or concepts, ranging from YouTube how-to tutorials and MOOCs to specialised instructional content like s…
- Video-to-Haptics (Video to Haptics, V2H)
- A class of techniques that automatically generate haptic feedback (typically vibrotactile or force cues) from visual content in video, so that viewers feel sensations synchronised with what they see. …
- WebVTT (Web Video Text Tracks, Web Video Text Tracks Format)
- WebVTT (Web Video Text Tracks) is the W3C standard text format for providing timed text tracks — including captions, subtitles, descriptions, chapters, and metadata — synchronized with HTML5 <video> a…