---
title: "Start audio transcription"
method: POST
path: "/api/Audio/transcribe/start"
tags: ["Audio"]
---

# Start audio transcription

`POST /api/Audio/transcribe/start`

Starts a job to transcribe an audio file. The audio file must be in one of the following supported formats: m4a, mp3, webm, mp4, mpga, wav.  After the transcription job is complete, the original audio file is deleted. To use the returned job ID to fetch the transcription results, use `/api/audio/{jobId}/transcribe/result`. If you do not retrieve the results within 5 minutes after the transcription is complete, the results are automatically purged.

## Response `200`

Returns the transcription job ID

- UnattachedFileMinimalApiModel — Response model returned after uploading a file for redaction.
  - `jobId` string — The unique identifier for the redaction job. Use this identifier to check processing status and download the redacted file.

## Other responses

- `400` — Invalid input or unsupported audio file format

---

[API](https://skmtc.net/tonic/apis/textual-api.md) · [All operations](https://skmtc.net/tonic/apis/textual-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/tonic/textual-api/revisions/41da8739a690/schema)