Is it more Participatio Actuosa if the congregation hears the words of the Consecration? I have a question on Participatio Actuosa. This is a term that makes a lot of people confused.
Anyway, in the EF of the Roman rite the Priest says the words of the Consecration in silence. He is the only one who can hear him saying the words. In the OF the Priest says the words so that we all (unless you are deaf) can hear him. There seems to be a new teaching here. If you hear the words than you are participating more. Nowadays you should hear almost everything the Priest says. I don't know why this is.
Is it more Participatio Actuosa if the congregation hears the words of the Consecration?
&quot;Active participation&quot; means participating in the prayer of the Mass.
&quot;Active participation&quot; originally meant the congregation participating in the priest's sacrifice, especially by singing the Gregorian chant (cf. Pope St. Pius X, Tra le sollecitudini).
The words of consecration must not be said in a loud voice.
The Council of Trent, Session 22, Doctrina de ss. Missae sacrificio, 17 September 1562 anathematizes those who think

Canon IX.— […] that the rite of the Roman Church, according to which a part of the canon and the words of consecration are pronounced in a low tone [submissa voce], is to be condemned; or, that the mass ought to be celebrated in the vulgar tongue only

It also says (Chapter V. On the solemn ceremonies of the Sacrifice of the Mass.) that

holy Mother Church instituted certain rites, to wit, that certain things be pronounced in the mass in a low [summissa], and others in a louder [elatiore], tone [voce].

This teaching was also taught by Pope Pius VI in his bull Auctorem Fidei condemning the heretical Council of Pistoia [DZ 1533]:

The proposition of the [heretical] synod [of Pistoia:] […] &quot;[…] by expressing it [the liturgy] in the vernacular language, by uttering it in a loud voice&quot;; […]—rash, offensive to pious ears, insulting to the Church, favorable to the charges of heretics against it.