Caption, translate and dub your Dacast live streams
Real-time captions, translated subtitles and AI dubbed audio on any Dacast live stream. Use your existing encoder, add SyncWords in the middle, and reach every audience.
- Any RTMP(S) encoder
- 163 subtitle languages
- No hardware
Trusted when the words have to arrive live
Why SyncWords + Dacast
Everything you need to caption a Dacast live stream
Send your RTMP(S) stream to SyncWords, get it captioned or translated in real time, then push it on to Dacast. Nothing changes in how you produce the stream.
Thanks for joining the live stream today.
Gracias por acompañarnos hoy en la transmisión.
Merci de nous rejoindre pour le direct aujourd’hui.
شكرًا لانضمامكم إلى البث المباشر اليوم.
本日はライブ配信にご参加いただきありがとうございます。
Live AI captions
Automatic captions in real time. Embedded EIA-608 covers the seven languages the standard supports, including English, Spanish, French, Portuguese and Italian.
Translated subtitles
Translated subtitles in real time, added without changing your workflow so a single live stream reaches viewers well beyond its home language.
Any RTMP(S) encoder
OBS Studio, vMix, Wirecast, Streamlabs and more. Send SyncWords your RTMP(S) push, we caption or translate it in real time, and it flows on to your players.
AI dubbed audio
Add AI voice dubbing with Vocalics for news, sports and narrated Dacast programming. It keeps the speaker's tone, pacing and emotion. Closed captions and subtitles are included with every dub.
Higher accuracy on your terms
Load custom ASR dictionaries with names, acronyms and product terms. Per-language glossaries keep translated wording consistent.
Concurrent streams
Fully cloud-based, with no transcoding, so you can run many concurrent live streams at once and scale for the day.
AI dubbing
Live AI dubbing for Dacast
Captions reach the audience that reads. Dubbing reaches the audience that listens. Vocalics, the SyncWords AI dubbing offering, dubs live news, sports and narrated programming in real time.
Dub into 86 languages
Natural-sounding AI dubbing in real time across 86 languages, with 900+ voices and regional accent options.
The speaker stays themselves
Voice transfer carries the original speaker's tone, pacing and emotion in real time across 38 languages. Preset voices and voice casting cover the rest.
One stream per language
Each dubbed language is delivered as its own stream, ready to publish as a separate Dacast channel for that audience. Closed captions and subtitles are included with every dub.
How it works
Four steps to a captioned Dacast stream
SyncWords sits in the middle of your existing workflow. Nothing changes in how you produce the stream.
Send us your stream
Point your RTMP(S) encoder at SyncWords instead of straight to Dacast. No change to how you produce.
We caption and translate
Captions are generated from your feed and translated for subtitles, in real time.
We hand it back
SyncWords passes the captioned stream on to Dacast, as embedded EIA-608 or a separate caption track.
Viewers pick a language
Your audience turns on captions and reads along in the language they choose, on any device.
How your audience sees it
Reach every viewer, in their language
Captions and subtitles reach viewers however they watch your Dacast stream, on any desktop or mobile device.
Player-native captions
Embedded EIA-608 and WebVTT tracks display right inside the Dacast player, on any desktop or mobile device.
Standalone URL
Share one link to a caption-native page. Viewers open it in any browser and switch languages on the fly.
QR code access
Put a QR code on screen. Viewers scan it and read captions or subtitles on their own phone.
Embed anywhere
Add captions and subtitles with a snippet of JavaScript or an iframe, wherever your audience already watches.
Onboarding and support
We set it up with you, and stay on the line
You are not on your own. SyncWords gets you live with a short onboarding call and a dedicated technician who knows Dacast and live production.
A short onboarding call
Give us about 20 minutes. We walk you through the SyncWords and Dacast workflow and get you set up before you go live.
A dedicated technician
Work with SyncWords specialists who know live streaming and broadcast production, so your captions and subtitles run smoothly on the day.
Bring your own captioner
Prefer human captions for marquee programming? Caption ingest from your captioner’s steno software runs over a direct EIA-608 Control-A connection.
Dacast captioning FAQ
Does this work with our existing Dacast setup?
What languages can we caption and translate into?
Can we use human (CART) captioners instead of AI?
Do we need a hardware caption encoder?
Caption your next Dacast live stream.
Talk to our team about real-time AI captions, translated subtitles and AI dubbed audio for Dacast. We usually onboard you in a short call.