Why Video Captions and Transcripts Matter for Everyone Not Just Deaf Users

Captions were designed for people who are deaf or hard of hearing, and they remain essential for them. But far more people use them: on trains, in quiet offices, while learning a language, or simply to follow along more easily.

Who uses captions

Research for the UK regulator Ofcom in 2006 found that about four in five people who used TV subtitles weren't deaf or hard of hearing. Since then, phones and social media have made watching with the sound off common.

• People who are deaf or hard of hearing.
• People in noisy or quiet places who can't use sound.
• Language learners and non-native speakers.
• People with ADHD or auditory processing differences, who may find it easier to follow text alongside speech.
• Anyone facing strong accents, technical terms or poor audio.

What transcripts add

• Skimming: read a ten-minute video in two minutes, or find the part you need.
• Search: text can be indexed by search engines; audio can't easily.
• Reference: copy quotes and steps.
• Deafblind users can read transcripts with a braille display.

What the rules require

The accessibility guidelines (WCAG 1.2.2) require captions for prerecorded video with audio. Many laws, including the Americans with Disabilities Act as applied to websites and the European Accessibility Act, rely on these guidelines.

What good captions look like

• Accurate, including names and technical terms.
• In sync with speech.
• Identify speakers when it's unclear.
• Include important sounds, such as [laughter] or [alarm].
• Easy to read: short lines, good contrast.

Adding captions to your videos

1. Use automatic captions from YouTube or your video tool as a starting point.
2. Edit them carefully; automatic captions often get names and terms wrong.
3. Upload the edited caption file.
4. Publish a transcript on the page alongside the video.

Captions on social video

Many people scroll social feeds with the sound off, so videos without captions can lose viewers in the first seconds. Burned-in captions, which are part of the video image, always show; uploaded caption files can be turned on and off and are easier to fix.

Captions for any video in Chrome

Chrome's Live Caption (Settings, then Accessibility) creates captions for audio playing in the browser, even on sites without them. It's handy, though less accurate than edited captions.

Reading the transcript

Long transcripts can be dense. ADHD Reading Focus shows one paragraph at a time in larger text. See simple accessibility checks.