deepgram-migration-deep-dive

# Deepgram Migration Deep Dive

## Overview
Comprehensive guide for migrating to Deepgram from other transcription providers or legacy systems.

## Common Migration Sources

| Source Provider | Complexity | Key Differences |
|-----------------|------------|-----------------|
| AWS Transcribe | Medium | Async-first vs sync options |
| Google Cloud STT | Medium | Different model naming |
| Azure Speech | Medium | Authentication model |
| OpenAI Whisper | Low | Self-hosted vs API |
| Rev.ai | Low | Similar API structure |
| AssemblyAI | Low | Similar feature set |

## Migration Strategy

### Phase 1: Assessment
- Audit current usage
- Map features to Deepgram equivalents
- Estimate costs
- Plan timeline

### Phase 2: Parallel Running
- Run both providers simultaneously
- Compare results
- Build confidence

### Phase 3: Gradual Rollout
- Shift traffic incrementally
- Monitor quality
- Address issues

### Phase 4: Cutover
- Complete migration
- Decommission old provider
- Documentation update

## Implementation

### Migration Adapter Pattern
```typescript
// adapters/transcription-adapter.ts
export interface TranscriptionResult {
  transcript: string;
  confidence: number;
  words?: Array<{
    word: string;
    start: number;
    end: number;
    confidence: number;
  }>;
  speakers?: Array<{
    speaker: number;
    start: number;
    end: number;
  }>;
  language?: string;
  provider: string;
}

export interface TranscriptionOptions {
  language?: string;
  diarization?: boolean;
  punctuation?: boolean;
  profanityFilter?: boolean;
}

export interface TranscriptionAdapter {
  name: string;
  transcribe(
    audioUrl: string,
    options: TranscriptionOptions
  ): Promise<TranscriptionResult>;
  transcribeFile(
    audioBuffer: Buffer,
    options: TranscriptionOptions
  ): Promise<TranscriptionResult>;
}
```

### Deepgram Adapter
```typescript
// adapters/deepgram-adapter.ts
import { createClient } from '@deepgram/sdk';
import { TranscriptionAdapter, TranscriptionRes