Embodiments of the present invention provide a system, method, and program product to deliver an announcement to people, such as a public announcement. A computer receives input representative of audio from one or more people speaking in one or more natural languages. The computer processes the input to identify the languages being spoken, and identifies a relative proportion of each of the identified languages. Using these proportions, the computer determines one or more languages in which to deliver the announcement. The computer then causes to be delivered the announcement in the determined languages. In other embodiments, the computer can also determine an order in which to deliver the announcement. Further, the computer can transmit the announcement in the determined languages and order for delivery in aural or visual form.