Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Electropalatography(also: EPG, Dynamic Palatography, Palatography)
- A technique for recording tongue-palate contact during speech using an artificial palate fitted with electrodes. When the tongue touches the palate, it completes a low-amperage electrical circuit that is detected and displayed visually in real time. In accessibility and deaf…
- Environmental Awareness(also: Situational Awareness, Environmental Sound Awareness)
- The perception and understanding of what is happening in one's physical surroundings, particularly through auditory cues. For Deaf and hard of hearing individuals, environmental awareness is often reduced because many everyday signals — appliance timers, doorbells, approaching…
- Environmental Sound(also: Ambient Sound, Non-Speech Audio)
- Any auditory information in a person's surroundings that is not speech, including sounds from appliances, alarms, animals, doorbells, traffic, weather, and other environmental sources. For deaf and hard of hearing people, awareness of environmental sounds is a significant…
- Extra-Speech Information(also: ESI, Paralinguistic Information)
- Aspects of spoken language beyond the words themselves that convey additional meaning, including how something is said rather than what is said. Examples include tone of voice (yelling, whispering), vocal emotion (sarcasm, anger, joy), singing, the language being spoken, speaker…
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