From the Vatican Radio Web Site
Entitled “The Voice of the Popes,” a digital archive containing over 8000 audio recordings featuring the voice of all the Popes from Pius XI through to Francis was unveiled at Vatican Radio on Tuesday.
The presentation comes in the run-up to the canonization ceremony for Popes John XXIII and John Paul II on April 27th [when archive will go live online].
[Clip]
Vatican Radio’s Director General Father Federico Lombardi says the digitalization was carried out in order to prevent damage from wear and tear and guarantee a better preservation of the material for posterity.
Additional Coverage From Vatican Information Service and AFP