deepgram-core-workflow-b

# 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 ```typescript import { createClient, LiveTranscriptionEvents } from '@deepgram/sdk'; const deepgram = createClient(process.env.DEEPGRAM_API_KEY!); const connection = deepgram.listen.live({ model: 'nova-3', language: 'en', smart_format: true, punctuate: true, interim_results: true, // Show in-progress results utterance_end_ms: 1000, // Silence threshold for utterance end vad_events: true, // Voice activity detection events encoding: 'linear16', // 16-bit PCM sample_rate: 16000, // 16 kHz channels: 1, // Mono }); // Connection lifecycle events connection.on(LiveTranscriptionEvents.Open, () => { console.log('WebSocket connected to Deepgram'); }); connection.on(LiveTranscriptionEvents.Close, () => { console.log('WebSocket closed'); }); connection.on(Li...