10. A computer system for delivering an announcement in two or more languages, the system comprising: a plurality of microphones deployed in an environment; and one or more processors, one or more computer-readable memories, one or more computer-readable tangible storage devices, and program instructions stored on at least one of the one or more storage devices for execution by at least one of the one or more processors via at least one of the one or more memories, the program instructions comprising: program instructions to receive, from the plurality of microphones deployed in the environment, input representative of audio of a group of human speakers speaking in the environment in two or more natural languages during a duration of time, wherein each microphone of the plurality of microphones transmits respective audio signals on separate channels; program instructions to process the input to identify the two or more natural languages being spoken in the environment by the group of human speakers during the duration of time; program instructions to process the audio signals on each channel to identify a first utterance match for one of the identified two or more natural languages; program instructions to, for each of the identified two or more natural languages, calculate a number of channels on which a first utterance match for that natural language was identified; program instructions to process the input to determine a relative proportion of each of the identified two or more natural languages being spoken in the environment by the group of human speakers during the duration of time, wherein the relative proportion of a natural language is based, at least in part, on the calculated number of channels on which a first utterance match for that natural language was identified; program instructions to determine two or more natural languages in which to deliver the announcement based, at least in part, on the relative proportion of each of the identified two or more natural languages being spoken in the environment by the group of human speakers during the duration of time; program instructions to determine a descending sequential order in which to deliver the announcement in the determined two or more natural languages based, at least in part, on the relative proportion of each of the identified two or more natural languages; and program instructions to cause to be delivered the announcement in the determined two or more natural languages in the determined descending sequential order by transmitting the announcement to an announcement system.
12. The system of claim 10 , wherein the program instructions further comprise program instructions to cause the announcement to be delivered aurally.