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Asynchronous Speech-To-Text API Documentation

Text Analysis

Rev.ai provides quality speech-text recognition via a RESTful API. All public methods and objects are documented here for developer reference. For a real-time speech to text solution, use Rev.ai's [Streaming API](/docs/streaming). # Base Endpoint The base url for this version of the API is > `https://api.rev.ai/speechtotext/v1` All endpoints described in this documentation are relative to this base url. # Quick Start Follow the [getting started checklist](https://www.rev.ai/getting_started) ## Get your Access Token You can generate your [access token](#section/Authentication/Access-Token) on the [settings page](https://www.rev.ai/access_token) of your account. This access token only needs to be generated once and never expires. You can re-generate your token, however this will invalidate the previous token. ## Submit a File To submit an audio file for transcription to Rev.ai: ``` curl -X POST "https://api.rev.ai/speechtotext/v1/jobs" -H "Authorization: Bearer $REV_ACCESS_TOKEN" -H "Content-Type: application/json" -d "{\"media_url\":\"https://www.rev.ai/FTC_Sample_1.mp3\",\"metadata\":\"This is a sample submit jobs option\"}" ``` You’ll receive a response like this: ~~~ { "id": "Umx5c6F7pH7r", "created_on": "2018-09-15T05:14:38.13", "name": "sample.mp3", "metadata": "This is a sample submit jobs option for multipart", "status": "in_progress" } ~~~ The `id` (in this case `Umx5c6F7pH7r`) will allow you to retrieve your transcript. ## Get Your Transcript Once a transcription job's `status` becomes `transcribed`, you can retrieve the transcript in JSON format by running: ``` curl -X GET "https://api.rev.ai/speechtotext/v1/jobs/{id}/transcript" -H "Authorization: Bearer $REV_ACCESS_TOKEN" -H "Accept: application/vnd.rev.transcript.v1.0+json" ``` Alternatively you can get the plain text version by running: ``` curl -X GET "https://api.rev.ai/speechtotext/v1/jobs/{id}/transcript" -H "Authorization: Bearer $REV_ACCESS_TOKEN" -H "Accept: text/plain" ``` You can poll for the `status` of your job by querying for the job periodically: ``` curl -X GET https://api.rev.ai/speechtotext/v1/jobs/{id} -H "Authorization: Bearer $REV_ACCESS_TOKEN" ``` **Note:** Polling is NOT recommended in a production server. Rather, use [webhooks](#section/Webhooks) to asynchronously receive notifications once the transcription job completes If you have any further questions, contact us at <[email protected]> # Submitting Files Two `POST` request formats can be used to submit a file: `application/json` or `multipart/form-data`. ## JSON This is the preferred method of file submission. Uses the `media_url` property to provide a direct download URL to the Rev.ai server. This method supports the use of pre-signed URLs. Links to videos hosted on platforms like Youtube are not valid because they are not direct download links. **Important note on presigned URLs:** Signed URLs usually have an expiration time which is configurable. To ensure the Rev.ai server can access the link, make sure the expiration time is set to 2 hours or more. In the event you plan on resending the same file, make sure to generate a new presigned URL. ## FormData Used to send a local file to the Rev.ai server. This allows the customer to send the file directly from the host machine. Certain limits apply to this format, see the [Async API Limits section](#section/Async-API-Limits) for more detals. # Turnaround Time and Chunking Often, especially for shorter files, your transcript will be ready in 5 minutes or less. It generally takes no longer than 15 minutes to return longer audios. If you require faster turn around time please contact <[email protected]> Chunking is the act of breaking audio files into smaller segments. Rev.ai uses this method to decrease turnaround time of audios greater than 3 minutes in length. # Webhooks If the optional `callback_url` is provided, the API will make an HTTP POST request to the `callback_url` with the following request body when the job either completes successfull

Detects text language