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gemini-multimodal-live-api-native-audio-websocket-demo-apps-gaming-assistant-demo-app-readme

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Repository doc · gemini/multimodal-live-api/native-audio-websocket-demo-apps/gaming-assistant-demo-app/README.md · Open on GitHub · Part of Gemini Notebooks

Real-time Gaming Guide

Author
Zack Akil

A specialized React application demonstrating how to build a real-time AI gaming assistant using Gemini Live API. This demo showcases advanced features like multimodal understanding, proactive audio, and persona-based prompting.

Overview

This application simulates a gaming companion that watches your gameplay and listens to your voice to provide relevant tips and guides. It demonstrates distinct persona-based interactions:

  1. Multimodal Awareness: The assistant sees your screen and hears your commentary to understand the game state.
  2. Persona Switching: Toggle between different personalities (Wise Wizard, SciFi Robot, Commander) to change the voice and style of assistance.
  3. Proactive Assistance: The assistant can speak spontaneously when you request help.

Key Features

  • Persona System: Dynamically injects system instructions to change the assistant’s personality and voice.
  • Native Audio: Leverages Gemini’s native audio capabilities for low-latency, expressive voice interactions.
  • Multimodal Input: Streams both screen capture and microphone audio to the model simultaneously.
  • Google Grounding: Uses real-time information to provide up-to-date game knowledge.

Quick Start

1. Backend Setup

The Python backend handles authentication with Google Cloud.

# Install dependencies
pip install -r requirements.txt
 
# Authenticate with Google Cloud
gcloud auth application-default login
 
# Start the proxy server
python server.py

2. Frontend Setup

In a new terminal, start the React application:

Ensure you have Node.js and npm installed. If not, download and install them from nodejs.org.

# Install Node modules
npm install
 
# Start development server
npm run dev

Open http://localhost:5173 to view the app.

Configuration

  1. Project ID: Enter your Google Cloud Project ID in the “Configuration” dropdown.
  2. Proxy URL: Defaults to ws://localhost:8080.
  3. Persona: Select a persona (Wizard, Robot, Commander) to start the session with a specific voice and style.

Project Structure

/
├── server.py           # WebSocket proxy & auth handler
├── src/
│   ├── App.jsx              # Main layout and Persona logic
│   ├── components/
│   │   └── LiveAPIDemo.jsx  # Core Gemini API integration
│   ├── utils/
│   │   ├── gemini-api.js    # Gemini WebSocket client
│   │   └── media-utils.js   # Audio/Video processing
└── public/
    └── audio-processors/    # Audio worklets

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