Reciting the Rosary aloud, either at the church, or in a prayer group (2 or more people) which can be a family group at home, is special. See below.
catholic.org/prayers/indulgw.php
The Enchiridion of Indulgences
Issued by the Sacred Apostolic Penitentiary, 1968
- Joseph Cardinal Ferretto,
Titular Bishop of the Suburban Church
of Sabina and Poggio Mirteto,
Originally published by Liberia Editrice Vatican,
Vatican City, 1968
This is a digest of the works and prayers listed in the Enchiridion of Indulgences. The Enchiridion recites each indulgenced prayer in full. Because most are recognizable they will only be listed by name. The un- translated Enchiridion lists each work and prayer in alphabetical order by their Latin names. The order shall remain the same in this listing. The descriptions of the works and details regarding obtaining the indulgence will be edited and abreviated in this listing. The following is not represented to be an exact reprint of the Enchiridion but and accurate digest of what constitutes an approved indulgenced work by the Sacred Apostolic Penitentiary.
In all but the plenary indulgence of In Articulo Mortis, at the moment of death, a plenary indulgence mentioned below MUST be accompanied by the three prerequisites of a plenary indulgence.
1.Sacramental Confession,
2.Communion, and
3.Prayer for the intention of the Holy Father, all to be performed within days of each other if not at the same time.
Thus the formula for obtaining a plenary indulgence are the three constants mentioned above plus any one of the variable works mentioned below as being worthy of a plenary indulgence.
…
48.RECITATION OF THE MARIAN ROSARY. (The following is verbatim.) "A PLENARY INDULGENCE is granted, if the Rosary is recited IN A CHURCH OR PUBLIC ORATORY OR IN A FAMILY GROUP, A RELIGIOUS COMMUNITY OR PIOUS ASSOCIATION; a partial indulgence is granted in other circumstances. "Now the Rosary is a certain formula of prayer, which is made up of fifteen decades of ‘Hail Marys’ with an ‘Our Father’ before each decade, and in which the recitation of each decade is accompanied by pious meditation on a particular mystery of our Redemption. "The name ‘Rosary,’ however, is commonly used in reference to only a third of the fifteen decades. “The gaining of the plenary indulgence is regulated by the following norms: "
A.The recitation of a third part only of the Rosary suffices; but the five decades must be recited continuously. "
B.The vocal recitation MUST be accompanied by pious meditation on the mysteries. "
C.In public recitation the mysteries must be announced in the manner customary in the place; for private recitation, however, it suffices if the vocal recitation is accompanied by meditation on the mysteries. "
D.For those belonging to the Oriental rites, amongst whom this devotion is not practiced, the Patriarchs can determine some other prayers in honor of the Blessed Virgin Mary (for those of the Byzantine rite, for example, the Hymn ‘Akathistos’ or the Office ‘Paraclisis’); to the prayers thus determined are accorded the same indulgences as for the Rosary.”