The Sound of Silence: Web APIs for Accessibility for Visual and Hearing Impairments
summary
The talk surveys modern browser accessibility APIs and tooling for visual and hearing impairments, demonstrating live captions using the Web Speech SpeechRecognition API (noting about 81% browser support), and showing SpeechSynthesis plus HTML5 <track> subtitles. It runs accessibility audits—using Microsoft Accessibility Insights to locate 16 issues on a sample site and Lighthouse to produce scores (90–93) and actionable fixes—and reports widespread failures (97.4% of sites with at least one WCAG error, contrast issues on ~85% of sites).
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chapters (7)
- 0:00Introduction and speaker background
- 3:50WCAG guidelines overview
- 12:19Common accessibility errors
- 24:16Accessibility tools demo
- 28:11HTML5 video subtitles API
- 31:37Legal obligations and best practices
- 33:42Q&A session
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