The questions streamers actually search before adding translated subtitles to a broadcast — answered straight, with real numbers.
Yes. You add live subtitles to Twitch through a browser-source overlay in OBS or Streamlabs. A tool like StreamTranslate gives you a subtitle URL — you paste it as a browser source and captions render on stream in real time. No plugin, no install. See the setup guide.
The pipeline captures your mic audio, transcribes it with speech recognition, translates the text with a neural engine, and pushes it to an on-screen overlay — continuously. StreamTranslate processes audio during an active caption session. Caption timing varies with audio quality, language choices, and connection conditions; test your setup before broadcasting.
The caption display uses an OBS browser source, so no OBS caption plugin is required for that workflow. Your browser and overlay still use local resources; check audio capture and the overlay after software updates.
StreamTranslate provides live caption translation in 65 languages through an OBS browser source. Pro and Elite support two displayed languages. Caption timing varies with audio quality, language choices, and connection conditions. Test captions with your own setup before broadcasting. The Free Plan includes 3 active hours each month with a required card; there is no payment unless you choose an upgrade. Compare it on the best live stream translator page.
The Free Plan includes 3 active streaming hours every month and requires a card; there is no payment unless you choose an upgrade. Stream Pass is $12 one-time for 12 active hours. Starter is $14.99/month for 25 hours plus $1/hour overage; Pro is $34.99/month for 50 hours plus $0.50/hour overage; Elite is $149/month for unlimited hours. Full breakdown on pricing.
No — Twitch doesn't natively turn a broadcaster's speech into translated on-screen subtitles. You need a third-party overlay added as an OBS browser source to show real-time translated captions to viewers.
Yes. Dual-language mode shows your spoken language and a translated language at once, so international viewers can follow along. StreamTranslate supports 65 languages for translation output.
It depends on audio quality and the speech model. StreamTranslate pairs a current-generation speech engine with a gaming and streaming vocabulary dictionary, so slang, game titles, and creator terms transcribe far more accurately than generic captioning tools.
StreamTranslate supports 65 languages for live transcription and translation — including Spanish, Portuguese, Japanese, Korean, French, German, Arabic, Hindi, Chinese, and Russian. See the full supported languages list.
Caption timing varies with audio quality, language choices, and connection conditions; test your setup before broadcasting. Speech processing runs in the cloud; your browser and overlay still use local resources.
Yes. Anything you stream through OBS or RTMP software supports a browser-source overlay, so StreamTranslate works on YouTube Live, Kick, TikTok Live, Facebook Gaming, and Rumble — not just Twitch.
Start with StreamTranslate's Free Plan: 3 active hours every month, card required; there is no payment unless you choose an upgrade. Test your audio and overlay before broadcasting. Open-source caption tools are another option if you prefer to configure local processing.
Also supports IRL with Moblin and the OBS audio plugin, including home and cloud OBS setups such as IRL Toolkit.
Use an OBS receiver for IRL Pro, Larix Broadcaster, PRISM Live Mobile or TVU Go. Cloud providers may need to install the plugin on your server.
Moblin · Moblin Browser Source · Cloud OBS · IRL Toolkit · OBS Studio · IRL Pro · Larix Broadcaster · PRISM Live Mobile · TVU Go · MediaMTX