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Automatic Captions for Live Streams

AI-powered automatic captions for Twitch, YouTube, and Kick — set up in 5 minutes, accurate in 125+ languages, powered by our industry-leading speech AI. No manual transcription, no SRT files, no editing.

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How Automatic Captions Work for Live Streams

Automatic captions use AI speech recognition to convert your microphone audio into text in real time. The captions appear as an overlay on your stream, updating dynamically as you speak. Viewers read your words as you say them — no delay, no manual effort, no SRT files to upload after the fact.

StreamTranslate's automatic captions are powered by our industry-leading speech AI, which processes your audio stream continuously. Unlike one-shot transcription APIs that process audio in fixed chunks, enterprise speech AI uses a streaming architecture that maintains context across chunks — so it understands that "GG" means "good game" rather than transcribing it as gibberish.

The result is automatic captions that actually make sense on gaming streams. Streamers who've tried Google's Web Speech API or browser-based alternatives know the frustration of seeing game names butchered beyond recognition. StreamTranslate's gaming-aware vocabulary keeps accuracy high even when you're calling out specific game titles, character names, or gaming slang.

5-Minute Setup

Create an account, grab your browser source URL, paste into OBS. Your automatic captions are live before your next stream starts.

Gaming Vocabulary

our industry-leading speech AI understands gaming terminology — game titles, slang, callouts — so your auto captions are accurate when it matters most.

125+ Languages

Auto-caption in your language and auto-translate to 125+ others simultaneously. One stream, global reach.

Automatic Captions vs Manual Captioning

Manual captioning for live streams — using a human transcriptionist typing in real time — costs $150+ per hour and requires scheduling in advance. CART services are excellent for formal events but completely impractical for daily streaming. Automatic captions through StreamTranslate cost a fraction of that, run 24/7 on demand, and deliver accuracy that approaches (and in gaming contexts, often exceeds) what a human transcriptionist could achieve in real time.

For streamers who broadcast several hours per week, automatic captions are the only viable path to accessibility. StreamTranslate makes it possible to run professional-grade captions on every single stream, not just special events, without breaking the budget or requiring scheduling coordination.

Connecting Automatic Captions to Your Stream Platform

StreamTranslate works with any streaming platform that supports OBS — which means Twitch, YouTube Live, Kick, Facebook Gaming, and any RTMP destination. The automatic captions appear as a browser source overlay in OBS, which means they're burned into your stream video that goes to any platform. Set it up once in OBS, stream anywhere.

You can also use StreamTranslate's browser source URL in Streamlabs OBS, vMix, XSplit, or any software that supports browser sources. Check our setup guide for platform-specific instructions, or see pricing to find the right plan for your streaming schedule.

Frequently Asked Questions

How accurate are automatic captions for live streams?

StreamTranslate's automatic captions achieve 95%+ accuracy on gaming streams using our industry-leading speech AI. Accuracy is highest when your microphone audio is clean and background game audio is not too loud.

Can I use automatic captions on Twitch?

Yes. StreamTranslate's automatic captions work with Twitch via OBS browser source. The captions appear as an overlay on your Twitch stream in real time.

Do automatic captions support multiple languages?

Yes. StreamTranslate can transcribe in your source language and translate automatic captions into 125+ languages simultaneously.

How do I add automatic captions to OBS?

Create a StreamTranslate account, copy your browser source URL, add a Browser Source in OBS, and paste the URL. Your automatic captions are live in under 5 minutes.

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