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Glossary

Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.

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Live Captioning(also: Real-Time Captioning, Live Captions)
The process of converting spoken language into text displayed in real time, enabling Deaf and hard of hearing individuals to follow live audio content such as meetings, lectures, broadcasts, and events. Live captioning may be performed by human stenographers (CART providers),…
Live Captioning(also: Real-Time Captioning, CART)
The process of creating captions in real time as audio content is being produced, rather than from a pre-existing script. Live captioning is used in television news broadcasts, live events, videoconferences, and classrooms. It presents unique challenges including a natural…
Live Description(also: Real-Time Description, Live Audio Description)
The practice of providing descriptions of visual content in real time as events unfold, as opposed to scripted descriptions added during post-production of recorded media. Live description is used in contexts such as livestreaming, live theatre, sporting events, and…
Livestream Accessibility(also: Live Video Accessibility)
The practice of making live video broadcasts accessible to people with disabilities, particularly viewers with visual or hearing impairments. Livestreams present unique accessibility challenges because they feature multiple simultaneous visual elements (main video, webcams,…

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