Live Captions
for Vimeo

Seamlessly integrate 608 captions into live streams being published to Vimeo. Choose between automated real-time captions or professional CART captioners. Ideal for Vimeo Advanced & Enterprise customers hosting virtual, hybrid, or in-person events, and live webinars.

Live Automated Captions, Subtitles and Voice Translations (aka AI dubbing) for AWS Elemental workflows

End-to-End Solution to Cover
Captioning Needs on Live Streams to Vimeo

The fastest & easiest way to provide accurate real-time captions for live events, conferences, meetings, and webinars streamed to Vimeo. Level up your streamed video content by making it more accessible and discoverable with live captioning technology powered by AI or CART captioners.
Meet mandated accessibility requirements for live streaming
Get higher captioning accuracy than built-in speech-to-text automatic translation inside Vimeo platform
Deploy accurately captioned live events in CEA-608 supported languages
Expand audience reach & increase viewership
Transcription archive available post-event
Use your existing human captioning service, if needed
Highly scalable to support unlimited concurrent live streams
Simple integration with your current live streaming workflow
Don’t be limited by the captioning credit provided in your Vimeo pricing plan

Adding SyncWords to your live event being streamed to Vimeo means: simple, scalable and instant delivery of real-time captions, or translated subtitles directly to Vimeo.

One-Stop Platform to Embed Captions to Vimeo Live Streams

Cost-effective, scalable, and reliable solution to add 608 captions to any RTMP(S) stream being broadcast to Vimeo. Compatible with standard live streaming software. Fully cloud-based, no hardware required.


Live AI Captioning

Automatic captions instantly available in all languages supported by CEA-608 including English, Spanish, Portuguese, and French.

Create custom dictionaries to enhance captioning accuracy of your live stream. Include specialized terminology, acronyms, and proper names. Store as many custom dictionaries as needed for various types of live programming.

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Live CART Captioning

Use SyncWords managed services to provide professional human captioning in English, Spanish, Portuguese, or French.

The platform is compatible with all standard human captioning/CART systems. Bring your own captioning service if needed.

The platform is fully cloud-based eliminating the need for costly hardware captioning encoders.

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Live RTMP(S) Streams

Whether you’re using OBS, Wirecast, vMix, Streamlabs, XSplit Broadcaster, Teradek, Restream, StreamYard, or any other streaming solutions, send your stream to SyncWords and get it captioned in real time.

SyncWords’ platform provides a simple way to push RTMP(S) streams to Vimeo while adding perfectly synchronized automatic or CART captions. Run unlimited concurrent live streams.

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Key Benefits

Highly cost-effective
Low-touch: no hardware, no transcoding; fully cloud-based
Multiple display options for desktop & mobile
Unlimited concurrent streams
Enhanced accuracy
with ASR dictionaries
7 source languages supported
24/7 availability for all live streams & events
Fully API-supported to automate workflows
Mixed  workflows supported: 
AI & CART captioning

Easily embed
automated captions to live events or
video content streamed to Vimeo

Use your existing live streaming software or service to connect to SyncWords and add AI-powered or human captions to your Vimeo live stream or event in real time.


Live Embedded Captioning Workflow for Vimeo Platform

A cost-effective solution compared to hardware encoders. Effortlessly add accurate AI-powered or CART captions to any live stream. Seamless integration into existing streaming workflow for Vimeo.

Client RTMP(S)
Video Stream
Live Platform
Adding Live AI or CART Captions
Live Streaming Platform
Receives live video with 608
captions embedded

Beyond Embedded Captions on Vimeo.
Support for Different Live Streaming Protocols

One-stop shop for automated live captions, subtitles, and AI voice translations. Make RTMP(S) live streams & events accessible and inclusive by adding SyncWords to your HLS, or SRT stream.

HLS Streaming ProTOCOL

Easily insert real-time automatic captions, subtitles and AI audio translations into a livestream to enhance accessibility and inclusivity. Highly cost-effective and scalable solution for streaming your live video content in multiple languages on any device or screen. Unlimited concurrent channels to broadcast different types of live programs.

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SRT Streaming protocol

SRT (Secure Reliable Transport) streaming is a modern, secure and reliable way to deliver live video content. Effortlessly add real-time captions to those streams using SyncWords AI or CART captioning. Can be used with virtual studios, remote live productions, or software-based captioning services to boost accessibility.
No hardware required for unlimited concurrent live streams.

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Live Automated captions, subtitles and voice translations (aka AI dubbing) using RTMP(S) and SRT live streaming protocols with AWS Elemental

Already using AWS Elemental? Looking to make your live streams accessible and inclusive 24/7?

Add SyncWords to your AWS Elemental workflow. SyncWords’ seamless integration into AWS Elemental MediaLive & MediaPackage means you can:

Auto-generate AI captions live in 50+ languages with enhanced accuracy
Translate to foreign subtitles in 100+ languages instantly
Automatically provide live audio dubbing in 50+ languages with over 900 AI voice options
Leverage AWS Elemental MediaPackage DVR functionality
while preserving live captions and translations
Use Amazon CloudFront as your CDN
Benefit from SyncWords’ RESTful API to streamline AI captioning, subtitling & dubbing processes

Use SyncWords’ RESTful API to add
automatic real-time captions to live streams

Seamlessly manage adding automatic captions to your RTMP(S) streams with SyncWords’ advanced API. Create, access, update and monitor events in real-time:

Integrate into your existing live streaming workflow
Use JSON or YAML data formats
Dive into API endpoints and authentication
Run a Postman collection with detailed documentation with quick start guides
Consult our Swagger implementation
Live AI Captions, Subtitles & Voice Translations Delivered in Real-time to Any HLS player

Deliver Real-time Captions to
Other Video Sharing Platforms

Using captions for live content makes streams more accessible to individuals with disabilities. Viewers watch captioned content for longer periods of time and retain more information.

adults worldwide require accessibility in the form of closed captioning
of people who use captions are not deaf and hard of hearing
by 85%
live captioning increases view time of your live stream
Works with:

Talk to our team 
of experts and get captions 
for your next virtual event

Captions and Subtitles - pricing - icon
Expect to hear back from us right away, but no later than one business day.