Caption User Interface Accessibility in WebRTC

Abstract

We investigate caption information and communication preferences by deaf and hard-of-hearing users of captions or subtitles, which are the text representation of language, whether spoken or written, in an open-source teleconferencing platform: WebRTC. We find that users prefer captions that are displayed next to the speaker’s head and a texting setting that allows real-time text communication in a letter-by-letter format for most teleconference settings.