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deepgram-migration-deep-dive Deep dive into migrating to Deepgram from other transcription providers.
Use when migrating from AWS Transcribe, Google Cloud STT, Azure Speech,
OpenAI Whisper, AssemblyAI, or Rev.ai to Deepgram.
Trigger: "deepgram migration", "switch to deepgram", "migrate transcription",
"deepgram from AWS", "deepgram from Google", "replace whisper with deepgram".
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name deepgram-migration-deep-dive description Deep dive into migrating to Deepgram from other transcription providers.
Use when migrating from AWS Transcribe, Google Cloud STT, Azure Speech,
OpenAI Whisper, AssemblyAI, or Rev.ai to Deepgram.
Trigger: "deepgram migration", "switch to deepgram", "migrate transcription",
"deepgram from AWS", "deepgram from Google", "replace whisper with deepgram".
allowed-tools Read, Write, Edit, Bash(npm:*), Bash(pip:*) version 1.0.0 license MIT author Jeremy Longshore <jeremy@intentsolutions.io> compatible-with claude-code, codex, openclaw tags ["saas","deepgram","migration","transcription"]
Deepgram Migration Deep Dive
Current State
!npm list @deepgram/sdk 2>/dev/null | grep deepgram || echo 'Not installed'
!npm list @aws-sdk/client-transcribe 2>/dev/null | grep transcribe || echo 'AWS Transcribe SDK not found'
!pip show google-cloud-speech 2>/dev/null | grep Version || echo 'Google STT not found'
Overview
Migrate to Deepgram from AWS Transcribe, Google Cloud Speech-to-Text, Azure Cognitive Services, or OpenAI Whisper. Uses an adapter pattern with a unified interface, parallel running for quality validation, percentage-based traffic shifting, and automated rollback.
Feature Mapping
AWS Transcribe -> Deepgram
AWS Transcribe Deepgram Notes LanguageCode: 'en-US'language: 'en'ISO 639-1 (2-letter) ShowSpeakerLabels: truediarize: trueSame feature, different param VocabularyName: 'custom'keywords: ['term:1.5']Inline boosting, no pre-upload ContentRedactionType: 'PII'redact: ['pci', 'ssn']Granular PII categories OutputBucketNamecallback: 'https://...'Callback URL, not S3 Job polling model Sync response or callback No polling needed
Google Cloud STT -> Deepgram
Google STT Deepgram Notes RecognitionConfig.encodingAuto-detected Deepgram auto-detects format RecognitionConfig.sampleRateHertzsample_rate (live only)REST auto-detects RecognitionConfig.model: 'latest_long'model: 'nova-3'Direct mapping SpeakerDiarizationConfig
diarize: true
StreamingRecognizelisten.live()WebSocket vs gRPC
OpenAI Whisper -> Deepgram Whisper Deepgram Notes Local GPU processing API call No GPU needed whisper.transcribe(audio)listen.prerecorded.transcribeFile()Similar interface model='large-v3'model: 'nova-3'10-100x faster language='en'language: 'en'Same format No diarization diarize: trueDeepgram advantage No streaming listen.live()Deepgram advantage
Instructions
Step 1: Adapter Pattern interface TranscriptionResult {
transcript : string ;
confidence : number ;
words : Array <{ word : string ; start : number ; end : number ; speaker ?: number }>;
duration : number ;
provider : string ;
}
interface TranscriptionAdapter {
transcribeUrl (url : string , options : any ): Promise <TranscriptionResult >;
transcribeFile (path : string , options : any ): Promise <TranscriptionResult >;
name : string ;
}
Step 2: Deepgram Adapter import { createClient } from '@deepgram/sdk' ;
import { readFileSync } from 'fs' ;
class DeepgramAdapter implements TranscriptionAdapter {
name = 'deepgram' ;
private client : ReturnType <typeof createClient>;
constructor (apiKey : string this .client = createClient (apiKey);
}
async transcribeUrl (url : string , options : any = {}): Promise <TranscriptionResult > {
const { result, error } = await this .client .listen .prerecorded .transcribeUrl (
{ url },
{
model : options.model ?? 'nova-3' ,
smart_format : true ,
diarize : options.diarize ?? false ,
language : options.language ?? 'en' ,
keywords : options.keywords ,
redact : options.redact ,
}
);
if (error) throw new Error (`Deepgram: ${error.message} ` );
return this .normalize (result);
}
async transcribeFile (path : string , options : any = {}): Promise <TranscriptionResult > {
const audio = readFileSync (path);
const { result, error } = await this .client .listen .prerecorded .transcribeFile (
audio,
{
model : options.model ?? 'nova-3' ,
smart_format : true ,
diarize : options.diarize ?? false ,
}
);
if (error) throw new Error (`Deepgram: ${error.message} ` );
return this .normalize (result);
}
private normalize (result : any ): TranscriptionResult {
const alt = result.results .channels [0 ].alternatives [0 ];
return {
transcript : alt.transcript ,
confidence : alt.confidence ,
words : (alt.words ?? []).map ((w : any ({
word : w.punctuated_word ?? w.word ,
start : w.start ,
end : w.end ,
speaker : w.speaker ,
})),
duration : result.metadata .duration ,
provider : 'deepgram' ,
};
}
}
Step 3: AWS Transcribe Adapter (Legacy)
import { TranscribeClient , StartTranscriptionJobCommand , GetTranscriptionJobCommand }
from '@aws-sdk/client-transcribe' ;
class AWSTranscribeAdapter implements TranscriptionAdapter {
name = 'aws-transcribe' ;
private client : TranscribeClient ;
constructor (this .client = new TranscribeClient ({});
}
async transcribeUrl (url : string , options : any = {}): Promise <TranscriptionResult > {
const jobName = `migration-${Date .now()} ` ;
await this .client .send (new StartTranscriptionJobCommand ({
TranscriptionJobName : jobName,
LanguageCode : options.language ?? 'en-US' ,
Media : { MediaFileUri : url },
Settings : {
ShowSpeakerLabels : options.diarize ?? false ,
MaxSpeakerLabels : options.diarize ? 10 : undefined ,
},
}));
let job;
do {
await new Promise (r =>setTimeout (r, 5000 ));
const result = await this .client .send (new GetTranscriptionJobCommand ({
TranscriptionJobName : jobName,
}));
job = result.TranscriptionJob ;
} while (job?.TranscriptionJobStatus === 'IN_PROGRESS' );
if (job?.TranscriptionJobStatus !== 'COMPLETED' ) {
throw new Error (`AWS Transcribe failed: ${job?.FailureReason} ` );
}
const response = await fetch (job.Transcript !.TranscriptFileUri !);
const data = await response.json ();
return {
transcript : data.results .transcripts [0 ].transcript ,
confidence : 0 ,
words : data.results .items
.filter ((i : any i.type === 'pronunciation' )
.map ((i : any ({
word : i.alternatives [0 ].content ,
start : parseFloat (i.start_time ),
end : parseFloat (i.end_time ),
speaker : i.speaker_label ? parseInt (i.speaker_label .replace ('spk_' , '' )) : undefined ,
})),
duration : 0 ,
provider : 'aws-transcribe' ,
};
}
async transcribeFile (path : string ): Promise <TranscriptionResult > {
throw new Error ('Upload to S3 first, then use transcribeUrl' );
}
}
Step 4: Migration Router with Traffic Shifting class MigrationRouter {
private adapters : Map <string , TranscriptionAdapter > = new Map ();
private deepgramPercent : number ;
constructor (deepgramPercent = 0 ) {
this .deepgramPercent = deepgramPercent;
}
register (adapter : TranscriptionAdapter this .adapters .set (adapter.name , adapter);
}
setDeepgramPercent (percent : number this .deepgramPercent = Math .max (0 , Math .min (100 , percent));
console .log (`Traffic split: ${this .deepgramPercent} % Deepgram, ${100 - this .deepgramPercent} % legacy` );
}
async transcribe (url : string , options : any = {}): Promise <TranscriptionResult > {
const useDeepgram = Math .random () * 100 < this .deepgramPercent ;
const primary = useDeepgram ? 'deepgram' : this .getLegacyName ();
const adapter = this .adapters .get (primary);
if (!adapter) throw new Error (`Adapter not found: ${primary} ` );
const start = Date .now ();
const result = await adapter.transcribeUrl (url, options);
const elapsed = Date .now () - start;
console .log (`[${primary} ] ${elapsed} ms, confidence: ${result.confidence.toFixed(3 )} ` );
return result;
}
private getLegacyName (): string {
for (const [name] of this .adapters ) {
if (name !== 'deepgram' ) return name;
}
throw new Error ('No legacy adapter registered' );
}
}
const router = new MigrationRouter (0 );
router.register (new AWSTranscribeAdapter ());
router.register (new DeepgramAdapter (process.env .DEEPGRAM_API_KEY !));
router.setDeepgramPercent (5 );
router.setDeepgramPercent (25 );
router.setDeepgramPercent (50 );
router.setDeepgramPercent (100 );
Step 5: Parallel Running and Quality Validation async function validateMigration (
testAudioUrls : string [],
legacyAdapter : TranscriptionAdapter ,
deepgramAdapter : TranscriptionAdapter ,
minSimilarity = 0.85
) {
console .log (`Validating ${testAudioUrls.length} files (min similarity: ${minSimilarity} )` );
const results : Array <{
url : string ;
similarity : number ;
legacyConfidence : number ;
deepgramConfidence : number ;
legacyTime : number ;
deepgramTime : number ;
pass : boolean ;
}> = [];
for (const url of testAudioUrls) {
const legacyStart = Date .now ();
const legacy = await legacyAdapter.transcribeUrl (url);
const legacyTime = Date .now () - legacyStart;
const dgStart = Date .now ();
const dg = await deepgramAdapter.transcribeUrl (url);
const dgTime = Date .now () - dgStart;
const words1 = new Set (legacy.transcript .toLowerCase ().split (/\s+/ ));
const words2 = new Set (dg.transcript .toLowerCase ().split (/\s+/ ));
const intersection = new Set ([...words1].filter (w =>has (w)));
const union = new Set ([...words1, ...words2]);
const similarity = intersection.size / union.size ;
results.push ({
url : url.substring (url.lastIndexOf ('/' ) + 1 ),
similarity,
legacyConfidence : legacy.confidence ,
deepgramConfidence : dg.confidence ,
legacyTime,
deepgramTime,
pass : similarity >= minSimilarity,
});
}
const passCount = results.filter (r =>pass ).length ;
console .log (`\n=== Validation Results ===` );
for (const r of results) {
console .log (`${r.pass ? 'PASS' : 'FAIL' } ${r.url} : similarity=${(r.similarity * 100 ).toFixed(1 )} % ` +
`(legacy: ${r.legacyTime} ms, deepgram: ${r.deepgramTime} ms)` );
}
console .log (`\n${passCount} /${results.length} passed (${(passCount / results.length * 100 ).toFixed(0 )} %)` );
return { results, allPassed : passCount === results.length };
}
Step 6: Migration Checklist Phase Actions Duration Assessment Audit current usage, map features, estimate costs 1 week Setup Install SDK, implement adapter pattern, create test suite 1 week Validation Parallel run on test corpus, measure similarity 1 week Rollout 5% Enable for 5% of traffic, monitor closely 1 week Rollout 25% Increase if no issues, monitor error rate 1 week Rollout 50% Continue monitoring, compare costs 1 week Rollout 100% Full cutover, decommission legacy 1 week Cleanup Remove legacy adapter, update docs 1 week
Output
Unified TranscriptionAdapter interface
Deepgram and legacy (AWS/Google) adapter implementations
Migration router with percentage-based traffic shifting
Parallel running with Jaccard similarity validation
Migration timeline and checklist
Error Handling Issue Cause Solution Low similarity Feature mapping incomplete Check options mapping (language, diarize) Deepgram slower than expected First request cold start Pre-warm with test request Missing features No direct equivalent Use keywords for custom vocab Rollback needed Quality regression router.setDeepgramPercent(0) immediately
Resources 