"en alta voz" meaning in Spanish

{
  "head_templates": [
    {
      "args": {},
      "expansion": "en alta voz",
      "name": "es-adv"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1877, Benito Pérez Galdós, Gloria:",
          "text": "Gloria leyó en alta voz la Vida de San Pablo Apóstol, La Cuna y la sepultura y Las cuatro pestes del mundo. Después e engolfó en la Política de Dios y Gobierno de Cristo",
          "type": "quote"
        }
      ],
      "glosses": [
        "Synonym of en voz alta"
      ],
      "id": "en-en_alta_voz-es-adv-ts2oT68y",
      "links": [
        [
          "en voz alta",
          "en voz alta#Spanish"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "en voz alta"
        }
      ]
    }
  ],
  "word": "en alta voz"
}

{
  "head_templates": [
    {
      "args": {},
      "expansion": "en alta voz",
      "name": "es-adv"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Requests for translations of Spanish quotations",
        "Spanish adverbs",
        "Spanish entries with incorrect language header",
        "Spanish lemmas",
        "Spanish multiword terms",
        "Spanish terms with quotations"
      ],
      "examples": [
        {
          "ref": "1877, Benito Pérez Galdós, Gloria:",
          "text": "Gloria leyó en alta voz la Vida de San Pablo Apóstol, La Cuna y la sepultura y Las cuatro pestes del mundo. Después e engolfó en la Política de Dios y Gobierno de Cristo",
          "type": "quote"
        }
      ],
      "glosses": [
        "Synonym of en voz alta"
      ],
      "links": [
        [
          "en voz alta",
          "en voz alta#Spanish"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "en voz alta"
        }
      ]
    }
  ],
  "word": "en alta voz"
}