Deepgram Core Workflow B: Live Streaming Transcription

Overview

Real-time streaming transcription using Deepgram's WebSocket API. The SDK manages the WebSocket connection via listen.live(). Covers microphone capture, interim/final result handling, speaker diarization, UtteranceEnd detection, auto-reconnect, and building an SSE endpoint for browser clients.

Prerequisites

• @deepgram/sdk installed, DEEPGRAM_API_KEY configured
• Audio source: microphone (via Sox/rec), file stream, or WebSocket audio from browser
• For mic capture: sox installed (apt install sox / brew install sox)

Instructions

Step 1: Basic Live Transcription

import { createClient, LiveTranscriptionEvents } from '@deepgram/sdk';

const deepgram = createClient(process.env.DEEPGRAM_API_KEY!);