> ## Documentation Index
> Fetch the complete documentation index at: https://docs.wav.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Audio To MIDI

> Processes an audio file and converts it into a MIDI file. Optionally generates a sonified .wav and/or a CSV of note events. This request is handled asynchronously.



## OpenAPI

````yaml POST /v1/audio_to_midi
openapi: 3.1.0
info:
  title: WAV API
  version: 1.0.0
  description: API for retrieving conversion details by ID.
servers:
  - url: https://api.wav.com/api/public
    description: Production server
security: []
paths:
  /v1/audio_to_midi:
    post:
      summary: Convert Audio to MIDI
      description: >-
        Processes an audio file and converts it into a MIDI file. Optionally
        generates a sonified .wav and/or a CSV of note events. This request is
        handled asynchronously.
      requestBody:
        required: true
        content:
          multipart/form-data:
            schema:
              type: object
              properties:
                audio_url:
                  type: string
                  description: 'Input audio URL (supported format: YouTube URL).'
                  example: https://example.com/audio.mp3
                audio_file:
                  type: string
                  format: binary
                  description: Audio file to upload and process directly.
                sonify_midi:
                  type: boolean
                  default: true
                  description: >-
                    If true, generates a .wav file that sonifies the MIDI
                    output.
                save_note_events:
                  type: boolean
                  default: true
                  description: If true, saves predicted note events as a CSV file.
                webhook_url:
                  type: string
                  description: Callback URL to receive conversion results.
                  example: https://your-webhook-url.com/callback
              anyOf:
                - required:
                    - audio_url
                - required:
                    - audio_file
      responses:
        '200':
          description: Successfully initiated task
          content:
            application/json:
              schema:
                type: object
                properties:
                  success:
                    type: boolean
                  task_id:
                    type: string
                  conversion_id:
                    type: string
                  eta:
                    type: integer
                  credit_estimate:
                    type: number
                  message:
                    type: string
                  status:
                    type: string
                example:
                  success: true
                  task_id: cf34f4e0-3273-41e4-95e5-05dc745b9852
                  conversion_id: 0b0b59e5-4c71-49ec-8ca5-5cd05142d5ab
                  eta: 37
                  credit_estimate: 0.016
                  message: Message published to queue
                  status: IN_QUEUE
        '400':
          description: Invalid request parameters
          content:
            application/json:
              schema:
                type: object
                properties:
                  success:
                    type: boolean
                    example: false
                  error:
                    type: string
                    example: Missing or invalid audio_url
        '500':
          description: Internal server error
          content:
            application/json:
              schema:
                type: object
                properties:
                  success:
                    type: boolean
                    example: false
                  error:
                    type: string
                    example: Error during MIDI conversion
      security:
        - ApiKeyAuth: []
      x-codeSamples:
        - lang: Python
          source: >-
            import requests


            url = "https://api.wav.com/api/public/v1/audio_to_midi"

            headers = {"Authorization": "<API_KEY>"}


            payload = {
                "sonify_midi": True,
                "save_note_events": True,
                "webhook_url": "https://your-webhook-url.com/callback"
            }


            # Option 1: audio_url

            payload["audio_url"] = "<YOUR_AUDIO_URL>"

            response = requests.post(url, headers=headers, data=payload)


            # Option 2: File Upload

            # with open("audio.wav", "rb") as f:

            #     files = {"audio_file": f}

            #     response = requests.post(url, headers=headers, data=payload,
            files=files)


            print(response.json())
components:
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: Authorization

````