Glossary

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Panel Transition Cue(also: Scene Transition Cue, Panel Change Signal)

An auditory signal used in audio-described comics and webtoons to indicate that the narrative has moved to a new panel, scene, or page. Panel transition cues help visually impaired listeners maintain orientation within the sequential narrative structure of comics, where visual…

Parallel Viewing(also: Dual-Screen Viewing)

A media consumption strategy in which viewers use a second screen alongside the primary display to access supplementary information, accessibility features, or alternative content representations without interrupting the main viewing experience. For people with disabilities,…

Participatory Captioning

A framework proposed by Nguyen et al. (2026) that characterises social media video captioning as a collaborative, community-sustained infrastructure co-produced by viewers, creators, and platforms — rather than a top-down accessibility feature delivered unilaterally.…

Picture-in-Picture(also: PiP, PIP)

A display technique that shows a smaller video or content window overlaid on the main content, allowing viewers to see two sources simultaneously. In accessibility contexts, picture-in-picture is the primary method for presenting sign language interpretation in video and…

Playhead(also: Play Head, Cursor Position)

The visual indicator on a video or audio timeline that shows the current playback position, typically a vertical line or triangle marker that moves in time with the media. Playheads are a core primitive of timeline-based media tools (video editors, DAWs, subtitle authoring…

Podcast(also: Podcasting)

An episodic, on-demand audio programme distributed over the internet, typically via RSS or proprietary platforms such as Spotify, Apple Podcasts, and BBC Sounds. Podcasts are a dominant form of long-form audio media — 92% of UK adults listen to some audio content weekly — but…

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