Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Wideband Audio(also: HD Voice, High-Definition Audio)
- Audio transmission that captures a broader range of frequencies (typically 50-7000 Hz or higher) compared to narrowband telephony (300-3400 Hz), resulting in clearer and more natural-sounding speech. In accessibility contexts, wideband audio is particularly important for hearing…
- Word Board(also: Communication Board, Word Display)
- A communication tool used in augmentative and alternative communication (AAC) consisting of words, common phrases, and sometimes alphabet letters arranged on a physical board or digital display. Users compose messages by pointing to items on the board. Words are typically…
- Word-Finding Difficulty(also: Anomia, Word Retrieval Difficulty, Tip-of-the-Tongue)
- A common symptom of aphasia where a person knows what they want to say but cannot retrieve the correct word. Word-finding difficulties can range from occasional pauses to severe impairment where even common words become inaccessible. The experience is often described as having a…
- Written Choice(also: Written Choice Technique)
- A therapeutic communication technique used with individuals who have aphasia, in which a conversation partner asks a question and then provides anticipated written answers for the person to choose from. This scaffolded approach reduces the language production demands on the…
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