Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- AD Guidelines(also: Audio Description Guidelines, AD Standards)
- Established rules and best practices that govern the creation of audio descriptions for video and live performances. AD guidelines cover aspects such as what to describe (actions, characters, settings, on-screen text), language style (present tense, third person, objective),…
- AD Personalization(also: Audio Description Customization, Personalized Audio Description)
- The practice of tailoring audio descriptions to individual user preferences rather than providing a one-size-fits-all narration. Personalization can include varying the level of detail (concise vs. comprehensive), focus (character-driven vs. environment-driven), interpretation…
- AD Timing(also: Audio Description Timing, AD Placement)
- The process of determining when audio descriptions should be inserted into video content. Effective AD timing requires identifying natural pauses in dialogue and significant audio where descriptions can be placed without overlapping important sound. Automated AD timing systems…
- Audio Description(also: AD, Descriptive Video, Video Description)
- A narration track added to video content that describes important visual information for people who are blind or have low vision. Audio descriptions are inserted during natural pauses in dialogue and other audio, conveying key visual elements such as actions, scene changes,…
- Audio Description Authoring(also: AD Authoring, AD Creation, Description Writing)
- The process of writing and producing audio descriptions for video content, live performances, or other visual media. AD authoring involves watching content, identifying key visual elements, writing concise and objective descriptions, timing them to fit within available gaps, and…
- Automatic Captions(also: Auto-Generated Captions, Auto Captions, ASR Captions)
- Captions produced by automatic speech recognition (ASR) systems without human transcription, typically generated by the hosting platform (e.g., YouTube, Zoom, Microsoft Teams) as an optional layer on uploaded or live video. Automatic captions have dramatically expanded caption…
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