json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "title": "Sound asset",
      "description": "Specification for the asset type for loading sound files",
      "type": "object",
      "properties": {
          "asset_type": {
              "type": "string",
              "pattern": "sound"
          },
          "sound_file": {
              "type": "string",
              "description": "The path of the file relative to the current asset directory"
          },
          "file_type": {
              "type": "string",
              "description": "The type of file to load",
              "pattern": "OGG"
          }
      }
  }