How about a kind of radio you could acquire, and tune to different cities? Transmitters could be placed in central locations and if a shout was heard by the transmitter, you could hear it as well. Then different cities could be used for different kinds of shouts; Jeuno for Abyssea & w/e, AU for Assault & missions, Bastok for bazaar & item shouts, Windurst for live Ballista games, Norg for conspiracy-theory-themed interview shows, etc.