Synapse - Demo

Speech to Text with Intent Recognition built with Deepgram and Google Gemini Flash

Live Demo: https://stt.alen.is

Local Setup

Prerequisites

• Node.js
• pnpm

API Keys

Deepgram: Login to Deepgram Console and create an API key with "Member" access.

Gemini: Get Gemini Key from Google AI Studio

Setup

1. Clone the repository

git clone https://github.com/alenvelocity/synapse-demo.git
cd synapse-demo

2. Install dependencies

pnpm install

3. Create a .env file and add your Deepgram API key

DEEPGRAM_API_KEY="your_deepgram_api_key"
DEEPGRAM_PROJECT_ID="your_deepgram_project_id"
DEEPGRAM_ENV="development"
GEMINI_API_KEY="your_google_api_key"
GEMINI_MODEL_NAME="gemini-2.0-flash" # Default model

4. Run the development server

https is needed if you want to access microphone in secure context (other than localhost)

pnpm dev --experimental-https

5. Open http://localhost:3000 in your browser