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POST
/
voice
/
speech_to_text
Convert speech to text
curl --request POST \
  --url https://modelslab.com/api/v6/voice/speech_to_text \
  --header 'Content-Type: application/json' \
  --data '{
  "key": "<string>",
  "init_audio": "<string>",
  "language": "<string>",
  "timestamp_level": "word",
  "webhook": "<string>",
  "track_id": 123
}'
{
  "status": "success",
  "generationTime": 123,
  "id": 123,
  "output": [
    "<string>"
  ],
  "proxy_links": [
    "<string>"
  ],
  "future_links": [
    "<string>"
  ],
  "links": [
    "<string>"
  ],
  "meta": {},
  "eta": 123,
  "message": "<string>",
  "tip": "<string>",
  "fetch_result": "<string>",
  "audio_time": 123
}

​
Request

Make a POST request to below endpoint and pass the required parameters as a request body.
curl
--request POST 'https://modelslab.com/api/v6/voice/speech_to_text' \

​
Body

json
{    
  "key": "your_api_key",    
  "init_audio": "https://pub-f3505056e06f40d6990886c8e14102b2.r2.dev/audio/tom_hanks_1.wav",    
  "language": "en",    
  "timestamp_level": null,    
  "webhook": null,    
  "track_id": null
}

​
Languages Supported

Whisper supports several languages, but performance may vary due to factors like limited training data, script complexity, and regional dialects, potentially affecting transcription accuracy.
"Afrikaans": "af",
"Arabic": "ar",
"Belarusian": "be",
"Bengali": "bn",
"Bulgarian": "bg",
"Chinese": "zh",
"Czech": "cs",
"Danish": "da",
"Dutch": "nl",
"English": "en",
"Finnish": "fi",
"French": "fr",
"German": "de",
"Greek": "el",
"Hebrew": "he",
"Hindi": "hi",
"Hungarian": "hu",
"Indonesian": "id",
"Italian": "it",
"Japanese": "ja",
"Kannada": "kn",
"Korean": "ko",
"Malayalam": "ml",
"Marathi": "mr",
"Nepali": "ne",
"Panjabi": "pa",
"Persian": "fa",
"Polish": "pl",
"Portuguese": "pt",
"Romanian": "ro",
"Russian": "ru",
"Serbian": "sr",
"Spanish": "es",
"Swedish": "sv",
"Tagalog": "tl",
"Tamil": "ta",
"Telugu": "te",
"Thai": "th",
"Turkish": "tr",
"Ukrainian": "uk",
"Urdu": "ur",
"Vietnamese": "vi",
"Welsh": "cy"

Body

application/json
​
key
string
required

API key required to authorize the request

​
init_audio
string<uri>
required

URL of audio file to transcribe. Supported: WAV, MP3, FLAC, OPUS (5 seconds - 1 hour)

​
language
string
required

Language code in ISO 639-1 format (e.g. 'en', 'es', 'fr')

​
timestamp_level
enum<string>

Level of detail for timestamps in transcription

Available options:
word,
sentence
​
webhook
string<uri>

URL to receive POST notification upon completion

​
track_id
integer

ID for webhook identification

Response

Speech to text response

​
status
enum<string>

Status of the voice generation

Available options:
success,
processing,
error
​
generationTime
number

Time taken to generate the audio in seconds

​
id
integer

Unique identifier for the voice generation

​
output
string<uri>[]

Array of generated audio URLs

​
proxy_links
string<uri>[]

Array of proxy audio URLs

​
future_links
string<uri>[]

Array of future audio URLs for queued requests

​
links
string<uri>[]

Array of audio URLs (voice cover response)

​
meta
object

Metadata about the audio generation including all parameters used

​
eta
integer

Estimated time for completion in seconds (processing status)

​
message
string

Status message or additional information

​
tip
string

Additional information or tips for the user

​
fetch_result
string<uri>

URL to fetch the result when processing

​
audio_time
number

Duration of the generated audio in seconds

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