Glossary
Searchable terminology from accessibility, web standards, and related fields.
6660 terms — page 30 of 333
- Audible Pedestrian Signal (APS, Accessible Pedestrian Signal)
- A device attached to a pedestrian crossing traffic signal that conveys the WALK and DON'T WALK phases through non-visual cues — typically beeps, chirps, speech messages, or a vibrating tactile arrow i…
- Audience Modelling (Audience Modeling, User Modelling)
- The practice of characterizing and formally describing distinct groups of users and their interaction characteristics to inform the design and evaluation of web interfaces. In accessibility, audience …
- Audification
- A sonification technique that directly translates a data series into sound by mapping data values to audio waveform amplitudes, effectively "playing" the data as an audio signal. Unlike parameter mapp…
- Audio Augmented Reality (Audio AR, Augmented Audio Reality, Audio-Augmented Environment)
- The overlay of digital sound — synthesised speech, music, earcons, or spatialised audio cues — onto a user's perception of their real or virtual environment. Audio augmented reality can be head-worn (…
- Audio Beacon (Auditory Beacon, Sound Beacon)
- A spatial audio cue, typically a repeating tone or beep, attached to a specific location or object to help users with visual impairments navigate toward or identify points of interest in physical or v…
- Audio CAPTCHA (Audio HIP, Audio Human Interaction Proof)
- An auditory alternative to visual CAPTCHAs, typically presenting distorted spoken letters, numbers, or words that users must transcribe. While intended as an accessible alternative for blind users, re…
- Audio Cue (Auditory Cue, Sound Cue, Earcon)
- A non-speech sound used to convey information in an interface. In accessible programming environments, audio cues represent code structures, syntax errors, or navigation landmarks—for example, a door-…
- Audio Cues (Earcons, Auditory Icons, Sound Cues)
- Non-speech sounds used in software interfaces to convey information, status changes, or events that would otherwise be communicated only visually. In accessible development environments, audio cues ca…
- Audio Customization (Audio Control, Sound Customization)
- The ability for users to modify the audio characteristics of media content, including removing background sounds, enhancing speech clarity, adjusting volume levels for different audio channels, and co…
- Audio Denoising (Noise Removal, Audio Noise Reduction)
- The process of removing unwanted background sounds, noise, or audio artifacts from an audio signal while preserving the primary content (typically speech). In video accessibility for ADHD, audio denoi…
- Audio Describer (Describer, AD Writer)
- A professional who writes and sometimes narrates audio descriptions for film, television, live performance, museums, and digital media. Audio describers craft concise verbal narration that conveys ess…
- Audio Description (AD, Descriptive Audio, Audio Narration)
- A narration track that describes visual elements of media, exhibitions, performances, or environments for people who are blind or have low vision. In museums, audio descriptions provide verbal account…
- Audio Description (AD, Descriptive Video, Video Description, Described Video)
- 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 …
- Audio Description Authoring (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 co…
- Audio Description Customization (Personalized Audio Description, Adaptive AD)
- The ability for users to adjust the content and presentation of audio descriptions for video media based on their individual preferences. Customization dimensions may include detail level, emphasis on…
- Audio Description Script (AD Script, Video Description Script, Described Video Script)
- An audio description script is the written text that forms the basis of an audio description track for video content. The script contains narration that describes visual elements — including actions, …
- Audio Desktop (Auditory Desktop, Non-Visual Desktop)
- An audio desktop is a logical workspace that provides the functionality of a graphical electronic desktop entirely through auditory interaction, including speech output, auditory icons, and audio-form…
- Audio Ducking (Volume Ducking, Sidechain Compression)
- An audio production technique that automatically reduces the volume of one audio track (such as background music or sound effects) when another track (such as narration or dialogue) is playing, ensuri…
- Audio Effect Placement (AE Placement, Sound Effect Timing)
- The strategic timing of sound effects relative to narration or audio description in accessible media. Three primary placement strategies have been studied: pre-placement (sound effects before narratio…
- Audio Emphasis Level (AEL)
- A sonification technique that represents the degree of visual emphasis applied to text (such as larger font size, bold styling, or color changes) using distinct audio cues layered onto speech output. …