Building Real-Time Voice Forms with Google Gemini API: Architecture & Learnings

When you want to build voice-input forms that feel responsive and intuitive, the key challenge isn't transcription - modern APIs handle that well. It's latency. Transcription that takes 2 seconds to return feels broken. Transcription that streams back in real-time (200-400ms for first token) feels magical. This post walks through the architecture we built at Anve Voice Forms to make real-time voice transcription feel fast and seamless in the browser.