Subtitles for accessibility

Accessibility is not a checkbox. It is how people use your video when they cannot rely on audio or need text reinforcement. Good captions are readable, timed sanely, and free of joke-only sound gags that do not translate to text.

You will learn practical habits: line length, pacing, sound descriptions when meaning depends on non-speech audio, and player settings users actually touch. You will also see why accuracy on names and numbers is not polish for its own sake; it is how people verify facts.

This is not legal advice; laws vary by region. Still, the user experience reasons to caption well stand on their own.

Free tool

Rather do it than read about it? Upload an audio or video file and get a timed .srt back.No signup, no payment, up to 100 MB per file.

Upload your file

Step-by-step guide

Step 1: Prioritize accuracy for proper nouns

Names, brands, and places matter for trust. A wrong name in captions reads like carelessness even when the video looks expensive. Fix these before you tune comma placement in casual sentences.

Step 2: Keep reading speed humane

Split lines when speech is fast. If a viewer cannot finish a line before it disappears, the caption failed. Two short lines almost always beat one long line on a phone.

Step 3: Avoid all-caps walls

They read poorly and feel like shouting. Use normal sentence case except for real acronyms your style guide allows.

Step 4: Describe non-speech audio when meaning depends on it

If a door slam is the punchline, say so in brackets briefly. Do not over-describe music unless the story needs it; dense sound descriptions can distract from dialogue.

Step 5: Offer languages in separate tracks

Do not mix two languages in one cue file unless your platform forces it and viewers expect it. Separate tracks are easier to maintain and easier for assistive tech to follow.

Step 6: Test with captions on real devices

TVs and phones differ in font size, safe area, and contrast. What works on your laptop may fail on a cheap TV across the room.

Step 7: Ask for feedback

Users know what fails. Ask concrete questions: could you follow the procedure, could you catch the phone number, did any line feel too fast.

Tips for better subtitles

Use high-contrast styles when burning in; thin gray on gray fails in bright rooms.
Avoid tiny fonts; mobile viewers do not lean in to read your clever eight-pixel type.
If you localize, hire reviewers from the target audience when possible, not only bilingual staff who never watch social video.
Do not rely on auto captions alone for safety-critical words like medical or legal terms without a human pass.
Keep a glossary for product and policy language so spelling stays stable across episodes.
Document your caption style for teams so contractors do not invent a new look every week.

Common mistakes

Publishing unreadable auto captions as final Accessibility suffers and your brand looks sloppy in text.
Relying on burned-in only Some users need toggleable tracks, larger text, or different contrast in the player.
Jokes that only work as audio with no text Add concise text equivalents so the joke lands for people who cannot hear the tone.
Ignoring platform caption settings Defaults vary. Check language tags, default on or off, and whether auto-translation runs.

FAQ

Are automatic captions good enough for accessibility?

Not without a human pass. Accessibility expectations assume captions are accurate, and an uncorrected machine transcript is not: the words it gets wrong are often the ones carrying the meaning. Automatic output saves the typing, not the checking.

How fast can captions go before they stop being readable?

Around 15 to 20 characters per second is the usual ceiling, and slower is kinder. When speech outruns that, shorten the wording rather than flashing a full sentence for half a second.

Do captions need to describe sound that is not speech?

For accessibility, yes, whenever the sound carries meaning. A phone ringing, a door closing or music starting are part of the story for someone who cannot hear them, and they are written in brackets on their own line or alongside the dialogue.

Conclusion

Accessibility captions are accurate, paced, and tested. Auto drafts help; humans finish the job. Respect your audience’s time by making text easy to read on the first try.

Upload audio or video to generate SRT, then review with accessibility in mind before you call the project done.

When in doubt, preview on the smallest screen you support and listen once with sound off. That combination catches most real-world failures.

Now on your own file

The quickest way to finish this guide is to put this into practice on your own file: upload it, correct any line against the audio, download the .srt.Your upload and the subtitles are deleted automatically about an hour after the conversion.