Show HN: React hook for real-time voice with Gemini Live API

1 point

5 months ago

I built a React hook that handles bidirectional voice streaming with Google's Gemini Live API.

If you've tried building voice AI apps with Gemini, you probably hit the same issues I did:

  - Gemini expects 16kHz PCM input, sends 24kHz output, but browsers use 44.1kHz/48kHz
  - The audio is little-endian PCM16 - use Int16Array directly and you get garbage on some devices
  - Buffer too little = choppy audio. Buffer too much = noticeable latency
  - Audio chunks arrive while playing - chain them wrong and you get gaps

I spent some hours debugging this, so I extracted the working code into a library.

npm install gemini-live-react

GitHub: https://github.com/deflectionrate/gemini-live-react