Real-time speech-to-text for live streaming. StreamTranslate converts your voice to captions in 125+ languages using our industry-leading speech AI — works as an OBS browser source overlay for Twitch, YouTube, and Kick.
Add Speech-to-Text to Your StreamSpeech-to-text is a solved problem for recorded content. Give an AI model a finished audio file and current technology will transcribe it with high accuracy in seconds. Live streaming is an entirely different challenge that most STT systems are not designed to handle.
The core issue is latency. Batch STT systems process audio in chunks — typically 30 seconds to several minutes at a time — which makes them unsuitable for live captioning where captions need to appear within a second of speech. Even systems advertised as real-time often have latency of 3-5 seconds, creating a jarring viewer experience where captions lag noticeably behind what the streamer is saying.
Streaming ASR is a different architecture. our industry-leading speech AI, the engine that powers StreamTranslate, processes audio in continuous chunks of 100-200 milliseconds and returns partial transcription results as speech progresses. The result is captions that appear and update in near real-time, synchronized closely enough with speech that viewers experience them as simultaneous rather than delayed.
our industry-leading speech AI uses a streaming ASR architecture, not a batch processing model. Captions appear within 500ms — not 3-5 seconds like batch STT solutions.
Speech-to-text in 125+ languages. Stream in your native language and let StreamTranslate handle captions and translation simultaneously.
Your STT output becomes an OBS browser source overlay. No middleware, no additional software — just your mic, StreamTranslate, and OBS.
StreamTranslate speech-to-text pipeline does not stop at transcription. The our industry-leading speech AI STT output feeds directly into a real-time translation layer that converts your captions to 125+ other languages simultaneously. This means your speech-to-text session is also a multilingual translation session — without any additional setup or configuration.
The practical implication for streamers is significant. Every time you stream with StreamTranslate, you are simultaneously producing content accessible to English speakers via captions, and content accessible to Spanish, Japanese, French, German, Portuguese, Korean, and 118 other language communities via translation. You do not have to do anything differently — you just stream in your native language and StreamTranslate handles the rest.
The STT accuracy from enterprise speech AI is what makes this multilingual pipeline reliable. Translation quality is constrained by transcription quality — if the STT gets your words wrong, the translation inherits those errors. enterprise speech AI 95%+ accuracy on streaming content means the translation layer has clean input to work with. Connect your mic to StreamTranslate in minutes, or check our pricing for plan details.
Live streaming STT requires ultra-low latency, real-time audio processing, and resilience to variable audio quality. our industry-leading speech AI is designed specifically for real-time streaming audio, not offline transcription.
StreamTranslate typically delivers captions within 500 milliseconds of speech. Fast enough for viewers to read captions in sync with the stream.
Yes. our industry-leading speech AI handles multi-speaker audio reasonably well. Using separate microphone inputs for each speaker improves accuracy significantly.
Yes. StreamTranslate supports speech-to-text in 125+ languages powered by our industry-leading speech AI.
StreamTranslate captures your microphone input directly through your browser. Grant mic access when you first open StreamTranslate and the speech-to-text pipeline begins immediately.