a11 Video · Captions & audio description

Caption every word. Name every voice.

Upload your video and a11 makes it fully accessible. It writes accurate captions, records spoken audio description, produces a clean transcript, and labels every speaker, all in one pass. Accurate, reviewable, and fast enough for a whole semester of lectures at once.

WCAG 2.2 AA · Section 508 · CVAA

What sets it apart

More than captions. A record you can trust.

We built a11 Video to be the best captioning tool out there. Here is where that shows.

Accurate

It hears what the room heard

Where auto-captions garble names, technical terms, and crosstalk, a11 gets them right on the first pass, timed to the frame. What comes back is a clean transcript, not a rough draft you fix line by line, with captions, audio description, and a transcript all from the same run.

Speaker-aware

It knows who is talking

a11 separates and labels every voice automatically, so a panel, an interview, or a two-instructor lecture comes back with each line attributed to the right person. Rename a speaker once and it updates across the whole transcript, turning raw audio into a record you can actually read and search.

Honest

It flags what it is unsure of

Rather than hand you flat-confidence captions and hope for the best, a11 flags the lines it is unsure about, like a muffled word or overlapping speakers, and opens them in a real editor. Fix only what a11 flagged, review every line yourself, or land anywhere in between.

Unique to a11

Every format

An export for every case

  • Captions: drop-in SRT & VTT
  • Transcript: tagged PDF or Word
  • Audio description & plain text

See a11 on your own footage.

Grab thirty minutes with us and we’ll run your real footage through a11 on the call, crosstalk, jargon, three people talking at once. No canned demo. You’ll watch it get captioned, described, and split by speaker, and walk away with the finished accessible files, yours to keep.

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