The Fastest AI Live Captions

Make your live broadcasts accessible, compliant, and globally engaging with instant real-time closed captions.

Ultra-low latency
Robust AI accuracy
Uptime 99.999%
Trusted by more than 1,000 companies worldwide
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Unmatched AI Accuracy

Don't settle for generic auto-captions. SyncWords uses proprietary AI engines enhanced with Custom ASR Dictionaries. Upload your speaker names, technical jargon, and specific terminology beforehand.

Audio
Dictionary
Speech-to-text

Compliance Made Simple

Meet accessibility regulations (ADA, FCC, CVAA) effortlessly. Our automated workflow ensures your live events are inclusive for the Deaf and Hard of Hearing community without the high cost of human stenography.

ADA Compliant

Go Global Instantly

Break down language barriers in real-time. Transform your primary audio into translated subtitles for over 60 languages simultaneously. Supports English-to-Many and Many-to-Many workflows.

French Spanish Japanese +57 More
99.999%
Broadcast reliability
Mission-critical uptime
OTT Delivery
HLS, DASH & SRT

Cloud Broadcast Workflows

End-to-end automation

MediaLive
MediaPackage
CloudFront
Amazon S3
FAST Channels
FCC Compliant

Comprehensive Coverage

  • Support for 60+ source languages in real time: you are no longer limited to just English
  • Enhanced accuracy: SyncWords proprietary AI combined with custom ASR Dictionaries
  • Standards supported: VTT, CEA-608 and more
  • Support for major streaming protocols: HLS, RTMP(S) and SRT
  • Use Amazon CloudFront or publish to your CDN
  • Self-service, or use our dedicated expert technicians

Delivery Methods

HLS
RTMP(S)
SRT
Streaming HLS, RTMP(S) & SRT

Push captions directly into the stream headers. Compatible with social platforms and broadcast encoders.

Direct Ingestion Supported
+
Widget & URL + QR Code

An agile HTML iframe alongside video, or a standalone URL. Includes auto-generated QR codes for second-screen experiences.

Ideal for Zoom, Webex & In-Person
Embedded Player

Integrate our Embed Player directly into your website. Viewers toggle tracks inside the menu.

Works with JW Player, THEOplayer, Video.js

Technical Features at a Glance

Ultra-Low Latency Captions appear synchronously with the audio, minimizing delay for real-time engagement.
Profanity Filtering Automatic filtering to ensure your stream remains brand-safe and professional.
RESTful API Automate scheduling, dictionary uploads, and event creation directly from your CMS.
4K Ready Fully compatible with high-definition and 4K video workflows without performance loss.
Archiving Automatically generate a corrected transcript and VTT file for VOD immediately after stream.
FAQs

Frequently Asked Questions

How does Vocalics handle multiple speakers talking at once?
Can we use custom glossaries for player names and technical terms?
How does Vocalics preserve emotional tone compared to standard AI translation?
What languages are supported?
Is Vocalics compliant with broadcasting regulations and voice licensing laws?
Can Vocalics integrate with our existing broadcast workflow?
Get Started with SyncWords

Ready to become
a localization machine?

When more people can understand your content, audience growth follows and new opportunities open up.