{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://api.openverse.org/v1/schema/Audio",
  "title": "Audio",
  "type": "object",
  "description": "A single audio file. Used in search results.",
  "properties": {
    "id": {
      "type": "string",
      "description": "Our unique identifier for an open-licensed work."
    },
    "title": {
      "type": "string",
      "nullable": true,
      "description": "The name of the media."
    },
    "indexed_on": {
      "type": "string",
      "format": "date-time",
      "description": "The timestamp of when the media was indexed by Openverse."
    },
    "foreign_landing_url": {
      "type": "string",
      "nullable": true,
      "description": "The landing page of the work."
    },
    "url": {
      "type": "string",
      "nullable": true,
      "description": "The actual URL to the media file.",
      "maxLength": 1000
    },
    "creator": {
      "type": "string",
      "nullable": true,
      "description": "The name of the media creator."
    },
    "creator_url": {
      "type": "string",
      "nullable": true,
      "description": "A direct link to the media creator.",
      "maxLength": 2000
    },
    "license": {
      "type": "string",
      "description": "The name of license for the media.",
      "maxLength": 50
    },
    "license_version": {
      "type": "string",
      "nullable": true,
      "description": "The version of the media license.",
      "maxLength": 25
    },
    "license_url": {
      "type": "string",
      "nullable": true,
      "description": "A direct link to the license deed or legal terms.",
      "readOnly": true
    },
    "provider": {
      "type": "string",
      "nullable": true,
      "description": "The content provider, e.g. Flickr, Jamendo...",
      "maxLength": 80
    },
    "source": {
      "type": "string",
      "nullable": true,
      "description": "The source of the data, meaning a particular dataset. Source and provider can be different. Eg: the Google Open Images dataset is source=openimages, but provider=flickr.",
      "maxLength": 80
    },
    "category": {
      "type": "string",
      "nullable": true,
      "description": "The top-level classification of this media file.",
      "maxLength": 80
    },
    "genres": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 80
      },
      "nullable": true,
      "description": "An array of audio genres such as `rock`, `electronic` for `music` category, or `politics`, `sport`, `education` for `podcast` category"
    },
    "filesize": {
      "type": "integer",
      "maximum": 2147483647,
      "minimum": -2147483648,
      "nullable": true,
      "description": "Number in bytes, e.g. 1024."
    },
    "filetype": {
      "type": "string",
      "nullable": true,
      "description": "The type of the file, related to the file extension.",
      "maxLength": 80
    },
    "tags": {
      "type": "array",
      "items": {
        "$ref": "#/components/schemas/Tag"
      },
      "nullable": true,
      "description": "Tags with detailed metadata, such as accuracy."
    },
    "alt_files": {
      "type": "array",
      "items": {
        "$ref": "#/components/schemas/AudioAltFile"
      },
      "readOnly": true,
      "nullable": true,
      "description": "JSON describing alternative files for this audio."
    },
    "attribution": {
      "type": "string",
      "nullable": true,
      "description": "Legally valid attribution for the media item in plain-text English.",
      "readOnly": true
    },
    "fields_matched": {
      "type": "array",
      "items": {},
      "nullable": true,
      "description": "List the fields that matched the query for this result."
    },
    "mature": {
      "type": "boolean",
      "description": "Whether the media item is marked as mature"
    },
    "audio_set": {
      "allOf": [
        {
          "$ref": "#/components/schemas/AudioSet"
        }
      ],
      "readOnly": true,
      "nullable": true,
      "description": "Reference to set of which this track is a part."
    },
    "duration": {
      "type": "integer",
      "maximum": 2147483647,
      "minimum": -2147483648,
      "nullable": true,
      "description": "The time length of the audio file in milliseconds."
    },
    "bit_rate": {
      "type": "integer",
      "maximum": 2147483647,
      "minimum": -2147483648,
      "nullable": true,
      "description": "Number in bits per second, eg. 128000."
    },
    "sample_rate": {
      "type": "integer",
      "maximum": 2147483647,
      "minimum": -2147483648,
      "nullable": true,
      "description": "Number in hertz, eg. 44100."
    },
    "thumbnail": {
      "type": "string",
      "format": "uri",
      "readOnly": true,
      "nullable": true,
      "description": "A direct link to the miniature artwork."
    },
    "detail_url": {
      "type": "string",
      "format": "uri",
      "readOnly": true,
      "description": "A direct link to the detail view of this audio file."
    },
    "related_url": {
      "type": "string",
      "format": "uri",
      "readOnly": true,
      "description": "A link to an endpoint that provides similar audio files."
    },
    "waveform": {
      "type": "string",
      "format": "uri",
      "readOnly": true,
      "description": "A direct link to the waveform peaks."
    }
  },
  "required": [
    "alt_files",
    "attribution",
    "audio_set",
    "detail_url",
    "fields_matched",
    "id",
    "indexed_on",
    "license",
    "license_url",
    "mature",
    "related_url",
    "tags",
    "thumbnail",
    "waveform"
  ]
}