Adding captions for deaf and hard-of-hearing viewers is one of the highest-impact accessibility investments a streamer can make. Here's why it matters, how many viewers it affects, and how to do it in under 5 minutes with StreamTranslate.
Add Captions to Your StreamThe World Health Organization estimates that approximately 15% of the global adult population has some degree of disabling hearing loss. Applied to streaming platforms — Twitch reports over 31 million daily active users, YouTube has billions — the math suggests tens of millions of viewers who experience some hearing loss are watching streams right now.
That doesn't mean 15% of your viewers are deaf. But it means that at meaningful scale, some percentage of your audience is watching without full audio access. Add to that: viewers watching on mute in public spaces, non-native speakers who rely on text to follow English commentary, and viewers in noisy environments — and the population that benefits from captions is substantial.
Streamers who add captions consistently report that it changes the composition of their audience in positive ways. HOH viewers find them through search and recommendation, stick around longer, and engage more actively in chat because they feel seen and included.
WHO estimates suggest hundreds of millions of potential viewers worldwide have some degree of hearing loss — a massive underserved audience.
Studies consistently show captioned videos have higher completion rates and longer average watch sessions than uncaptioned equivalents.
StreamTranslate translates in real time — deaf Spanish, Japanese, and Portuguese viewers get captions in their language automatically.
Getting captions on your stream for deaf and HOH viewers requires three things: a captioning engine, an OBS integration, and accuracy good enough to be genuinely useful.
StreamTranslate delivers all three. The engine is our industry-leading speech AI — the same model used by professional broadcast teams — which delivers significantly better accuracy on gaming streams than generic speech recognition. The OBS integration is a browser source URL that takes 3 minutes to set up. And the accuracy is consistently rated by streamers as the best available for live streaming use.
Here's the process: sign up at streamtranslate.live/pricing, get your browser source URL from the control panel, add it as a Browser Source in OBS (1920x200), and go live. Your deaf and HOH viewers will see accurate live captions directly on stream — no viewer action required, no extensions needed.
For the full step-by-step walkthrough, visit the setup guide.
Based on WHO data that approximately 15% of the global population has some degree of hearing loss, Twitch's hundreds of millions of users likely include tens of millions of deaf or HOH viewers.
Use StreamTranslate: add a Browser Source in OBS with your StreamTranslate URL, set it to 1920x200, and captions appear live on your stream. Setup takes under 5 minutes.
Yes. Captions increase average watch time, attract HOH and non-native speaker audiences, and are frequently cited as a reason viewers follow and subscribe to channels.
StreamTranslate uses our industry-leading speech AI, delivering industry-leading accuracy on gaming streams with background audio, fast speech, and gaming-specific vocabulary.
Yes. StreamTranslate translates captions in real time into 125+ languages — so your deaf Spanish-speaking viewers get Spanish captions, your Japanese viewers get Japanese, and so on.