Glossary
Searchable terminology from accessibility, web standards, and related fields.
10 results found in multimedia accessibility.
- ACCMD (ACCessibility MetaData, IMS ACCessibility MetaData)
- A metadata specification developed by the IMS Global Learning Consortium for describing the accessibility characteristics of learning resources. ACCMD provides a structured way to document whether a r…
- Audio-Video Synchrony (AV Sync, Lip Sync, Audio-Video Synchronization)
- The temporal alignment between audio and video streams in multimedia content or real-time communication. When audio and video are not properly synchronized, the mismatch can significantly impair speec…
- Caption Highlighting (Text Highlighting in Captions, Keyword Highlighting in Captions)
- The visual emphasis of important words within video captions to help viewers quickly identify key concepts and reduce the cognitive load of reading dynamic text. Research with Deaf and Hard of Hearing…
- Connected TV (Smart TV, Internet TV, CTV)
- A television set or set-top box that can connect to the Internet, providing access to interactive features beyond traditional broadcast content including streaming applications, electronic programme g…
- Immersive Video (Immersive Media, VR Video)
- Video content viewed through head-mounted displays or surrounding screens that creates a sense of being present within the recorded environment. Immersive video includes 360-degree video captured with…
- SMIL (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 …
- Split Attention (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 particula…
- Tactile Captions (Haptic Captions, Vibrotactile Captions)
- An enhanced captioning approach that supplements traditional text-based captions with vibrotactile feedback, allowing deaf and hard of hearing viewers to feel non-speech sounds (such as phone rings, d…
- Teletext (Ceefax, Oracle)
- A text-based information service broadcast within the television signal that allowed viewers to access pages of text and simple graphics using their TV remote control. Originating in the UK with the B…
- Tiresias (Tiresias Screenfont, Tiresias Font Family)
- A family of typefaces developed in 1998 by the Royal National Institute of Blind People (RNIB) specifically designed for legibility on screen displays, particularly television subtitling. Named after …