Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- SMIL(also: Synchronized Multimedia Integration Language)
- A W3C XML-based markup language for describing multimedia presentations that combine audio, video, text, images, and other media with precise temporal and spatial synchronization. SMIL is significant for accessibility because it includes a MediaAccessibility module that defines…
- SRT(also: SubRip, SubRip Text, SRT Subtitle Format)
- SRT (SubRip Text) is a widely used plain-text subtitle file format originally created by the SubRip software for extracting subtitles from DVDs. An SRT file contains sequentially numbered subtitle entries, each with a time range (start and end timestamps in…
- Split Attention(also: Split-Attention Effect, Divided Attention)
- A cognitive phenomenon in multimedia learning where users must divide their visual attention between multiple information sources presented simultaneously. In accessibility contexts, this is particularly challenging for Deaf and Hard of Hearing viewers of captioned videos, who…
- Split Attention Effect(also: Split Attention)
- A cognitive load phenomenon in multimedia learning where learners must divide visual attention between two or more sources of information that should be integrated - for example captions at the bottom of the screen and a diagram in the centre. The cost of switching and mentally…
- Streaming Media(also: Streaming Audio, Streaming Video, Media Streaming)
- Streaming media is audio or video content delivered to a user in a continuous flow from a server, played back as it arrives rather than waiting for a complete download. Because streaming content produces transient sound and images, and often begins auto-playing as soon as a page…
- Subtitle(also: 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). Subtitles are closely related to captions but are conventionally distinguished in…
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