T7-R2 in five minutes
A voice turn is: hear, understand, decide, speak.
Hearing and speaking are models or browsers of their own, not the language model.
The Web Speech API is documented by MDN. The W3C draft should be confirmed. It is not enough to call it a Recommendation.
Barge-in means the person speaks over the reply.
The loop still has a tool cap.
If the browser both hears and speaks, the language model only sees text. Draw that split so you do not treat the microphone as the LLM.
Sources and go deeper
- MDN Web Docs, Web Speech API community last checked 2026-10
- Web Speech API community draft community last checked 2026-10
- W3C /TR/speech-api/ spec confirm This URL returned 404 on 2026-10. The community draft above is the page that opened. last checked 2026-10
- Speech synthesis — Wikipedia wikipedia last checked 2026-10
- Speech recognition — Wikipedia wikipedia last checked 2026-10