Live broadcasters increasingly rely on AI captioning platforms like SyncWords to meet accessibility mandates and reach multilingual audiences. StreamVX is one of the few production-ready solutions that natively ingests live DVB-TTML over SRT and repackages it as HLS, DASH or CMAF — with no changes to the upstream contribution workflow.
Language tags, styling and timing are preserved from contribution to delivery. Subtitles are never re-authored, and nothing upstream has to change. Resilient to subtitle input loss — video delivery continues uninterrupted.
Live DVB-TTML over SRT, decoded and processed in real time — no offline pre-conditioning of the stream.
Packaged HLS, DASH and CMAF with TTML or WebVTT subtitles, ready for any compliant OTT player.
Multiple simultaneous subtitle languages, including complex scripts: Arabic (RTL), Hebrew, Devanagari and CJK.
Full transcoder + packager pipeline, or packager-only — matched to your existing infrastructure.
Ingests a live SRT stream with embedded DVB-TTML PIDs, normalises video, builds the ABR ladder, and packages subtitles for direct OTT distribution.
Added value of the transcoder: video stream normalization and ABR output generation make this solution ready for direct OTT distribution without any additional processing. Also supports multi-audio tracks in a single pass — enabling dubbing and multilingual audio delivery.
For workflows where transcoding isn’t needed, the StreamVX Packager alone handles the full subtitle workflow — ingesting SRT with DVB-TTML and delivering compliant HLS, DASH or CMAF output. Simplified, low-latency architecture, no additional processing layer.
Resilient to subtitle input loss — packaging continues uninterrupted for seamless video delivery.
Either Solution 1 or Solution 2, enriched with parallel high-resolution recording. StreamVX packages the incoming high-resolution SRT stream for OTT delivery while vxVideo Wizard records the original source feed — as delivered by SyncWords — at full quality, for archive, compliance, or production use.
Added value of vxVideo Wizard: the original high-resolution feed is captured at full quality alongside OTT packaging — delivering broadcast-grade masters without a separate ingest path.
Available as a fully managed cloud service — start OTT streaming with subtitles immediately, no hardware to deploy. For clients with data security or regulatory requirements, we install the same system on your own infrastructure, always with the same interface.
Sign up and start OTT streaming with subtitles right away. Your own dedicated, isolated workspace is ready in minutes.
Same system, same interface, installed on your own infrastructure — built for regulated environments and data sovereignty requirements.
Your dedicated cloud workspace is ready in minutes — no hardware to order or install.
Give us the incoming SRT address from SyncWords — the integration is already tested and production-ready.
Use the intuitive UI to set transcoder and packager parameters and start OTT streaming with subtitles immediately.
A joint technology partnership solving one of the most persistent gaps in modern broadcast workflows: getting AI-generated captions from broadcast transport streams reliably onto OTT players, at scale, in real time.
SyncWords delivers AI-generated subtitles to hundreds of live channels globally. StreamVX’s vxOTT Gateway natively extracts DVB-TTML from the broadcast transport stream SyncWords produces, and repackages it into HLS with WebVTT or CMAF-Ingest — entirely cloud-native, with no dedicated hardware or extra encoding appliances required.
See all StreamVX partners