AI in Broadcast: Live Captions, Live Translation and Quality Control

This page maps where AI tools sit in broadcast: live captioning, live subtitles and dubbing in other languages, file quality control and archive search. It is for engineers, producers and media managers who already run a facility and want to know what changed. By the end you will know which job each tool does, which makers' claims we checked against their own pages, and where no page publishes an error rate. Reviewed 2026-10-08.

A 1960s mid-century comic book style editorial illustration showing a television control room with a wall of monitors, one showing a mountain landscape with a line of caption text beneath it, and two people at a desk of faders and screens.

What is different about professional use

Creator tools are judged on one result. Professional tools sit inside a chain of people and contracts, so four questions decide whether a tool is usable. This strand is for: Broadcast engineers, captioning coordinators, sports producers, media managers and archive staff.

Does it fit the system you already run?

A broadcast tool is judged on whether it works with the encoders, playout, asset management and QC already in the building. The makers list interfaces such as SDI, IP, cloud, REST and XML-RPC. Ask each one which of yours it covers.

Does it run live or on files?

Live work has no second take. Captions and translations must arrive within seconds, and a fault reaches viewers. File work can be reviewed first. Several makers describe a feature as a preview or as built for files, so check which stage you are buying.

Can you see how often it is wrong?

None of the pages we read publishes an error rate for captions, translations, quality flags or search. Measure on your own material before the tool touches air.

Who is responsible when it fails?

A regulator or a buyer may set caption quality or labelling requirements. We could not read the caption rules, so read them yourself and write down who takes over and when.

Guides in this strand

Tools, with what the makers state

Every tool on this page is listed as not tested by us. Several are sold by contract or as hardware, and we do not contact vendors for demonstrations. The statements below come from the maker's own page where the last column shows a date. The creator-level tools and a wider table are on the AI Tools for Creative Work hub.

Tools in this strand
ToolTierWhere it runsFormats and platformsChecked against maker
AI-Media LEXI (contract product)
Per Sports Video Group, 15 April 2026: LEXI Text and LEXI Voice Encoders are the first new encoder hardware in more than a decade, with 4K over 12G-SDI, support for SDI, IP and cloud workflows, LEXI Live Sync for configurable caption and translation timing, and a Hardware-as-a-Subscription model. The Voice Encoder adds AI sound separation and noise removal for voice translation. The article names no languages, speech engine, price or ship date. AI-Media's own page was unreachable.
StudioCloud, upload requiredNot checkedNot yet
Verbit (VITAC Captivate) (contract product)
Verbit's home page offers real-time captions "powered by Captivate" for meetings, depositions, broadcasts and classrooms and describes Captivate as customizable ASR. It does not say live captioners are human, gives no accuracy figure and does not say that VITAC is now Verbit. A 2022 Sports Video Group article on the launch says clients can add a human co-pilot to control the live ASR session and that specialists prepare the engine before each session. Both are the maker's own claims.
StudioCloud, upload requiredNot checked2026-10-08
CAMB.AI (contract product)
The EBU release of 6 March 2026 says Eurovision Sport and CAMB.AI provided real-time speech-to-text subtitles for all six Paralympic Winter Games sports, without altering editorial content. It names no languages and makes no accuracy or human-review claim. CAMB.AI's page lists "Live Dubbing" and "150+ languages" with no detail, and does not mention voice cloning or latency.
StudioCloud, upload requiredNot checked2026-10-08
Interra Systems BATON (contract product)
Page lists format, quality, timecode, loudness and compliance checks, neural-network quality checks, audio language identification, artifact detection and PSE detection. It runs in the cloud, on premises or hybrid, with REST and XML-RPC APIs and many file and caption formats. The page gives no error rates.
StudioCloud or on your own serversNot checked2026-10-08
Telestream Qualify (contract product)
Telestream's blog describes AI lip-sync detection that reports shift and drift with confidence values and configurable thresholds, and says the capability is a Tech Preview. It gives no accuracy figures or formats. A February 2026 release, read only as a search summary, adds subtitle alignment and spoken-language checks.
StudioCloud or on your own serversNot checked2026-10-08
Moments Lab (contract product)
Page describes cloud cataloguing with AI indexing, natural-language search through a Discovery Agent, a browser editor and publishing, with Adobe Premiere Pro, Amazon S3 and API integrations. Dalet is not mentioned on the page, so the design document claim of a Dalet integration is unconfirmed. Customer names are the page's own.
StudioCloud, upload requiredNot checked2026-10-08

Not yet checked

These are known to belong in this strand and are missing from it:

Consent, labelling and rights

Voice reconstruction and visual dubbing touch a performer's voice or face, and delivery contracts decide which repairs a buyer accepts. Read AI Voice Cloning: Consent, Contracts, and Disclosure and When to Label Content as AI-Made: Platform Rules and Audience Trust first. The union's own summary of its tentative 2026 TV/Theatrical agreement is covered in Digital Replicas and Synthetics. We have not read the full contract or the European Union labelling rules in their primary form, so this strand does not summarise them beyond that guide.

Sources

Checked 2026-10-08. We opened the maker's own page for 5 of 6 tools on this strand. We tested none of them. We record no prices, so each tier is our estimate.

These tools are described from trade coverage because the maker's page was unreachable or did not describe the product: AI-Media LEXI. Their rows say "Not yet" under "Checked against maker", and each guide names the trade source it used.

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