CaptionSense
Live captions, generated inside your facility
Broadcast-grade automatic captioning in more than 90 languages, live or file-based, with captions inserted straight into the transport stream.
CaptionSense turns live program audio into compliant captions without sending a single frame to a third-party cloud. It generates CEA-608/708 caption data and inserts it at the packet level, so encoders, playout, and archive downstream all receive finished captions in the stream itself. No sidecar files. No external captioning service in your signal path.
Built for your facility
Your content stays in your facility.
- Cloud and on-prem
- Live and file-based
- Private local AI models
Watch CaptionSense caption a live stream
Recorded from a live session. What you see is the product.
Live program audio in. CEA-608/708 captions inserted into the transport stream out.
Live captioning is a cost center with a compliance deadline attached
Human captioning of live output is expensive, hard to staff across languages, and impossible to scale to every channel you run. External captioning services add a cloud dependency to your signal path and put your content on someone else's infrastructure. Meanwhile the accessibility obligations don't move.
CaptionSense makes captioning a fixed capability of the facility. Every channel, every hour, every language you broadcast in.
How it works
Tap the audio
CaptionSense takes program audio from your stream over SRT, RTMP, MPEG-TS, or HLS, or from file.
Transcribe locally
An ensemble ASR engine runs on your hardware and selects the strongest transcription for the language on air.
Generate caption data
Transcripts become timed CEA-608/708 caption data, formatted for broadcast.
Insert into the stream
Captions are inserted at the packet level into the transport stream, or written into file-based workflows including MXF.
Capabilities
Packet-level caption insertion
CEA-608/708 written directly into MPEG-TS. Captions travel with the stream through everything downstream.
More than 90 languages
Standard and Specialized coverage tiers, with per-language fine-tuning for regional accents and vocabulary.
Live and file-based
The same engine captions a live channel and a mezzanine file, including MXF integration for cloud production workflows.
Ensemble accuracy
Multiple ASR models compete per language and the best output wins, instead of betting your compliance record on one model.
Skills are coming to CaptionSense
Every Sense ships with its core capabilities. Skills extend it, switchable per track, priced only when you turn them on.
Live Translation
Captions in a different language than the one being spoken, generated live.
Speaker Labels
Caption attribution by speaker for panel, news, and sports formats.
Caption Compliance Reports
Timing and presence conformance logs, ready for regulator or platform review.
Want early access to a Skill? Tell us in the demo.
In proof-of-concept deployments with Tier 1 broadcasters in North America and Europe.
Signal chain
In
SRT, RTMP, MPEG-TS, HLS, and file-based content including MXF.
Out
CEA-608/708 captions inserted into the transport stream or file deliverable, plus alarms, REST API, and a real-time event stream.
Runs where you run
Every Sense runs on private local AI models, on your hardware or in your cloud account. Nothing is sent to a third-party inference service, ever. Deployments range from a single GPU server to a rack, sized to your channel count. We spec the hardware with your engineering team before anything ships.
Questions
See CaptionSense on your content
Demos run on your content: live streams or files. Bring a sample and watch it work.