Ключевые слова: address, announce, announcement, announcements, background, blue, broadcast, calling, cloud, clouds, column, commentate, equipment, information, loud, loudspeaker, loudspeakers, masts, megaphone, message, music, noise, open, outdoor, pa, pole, posts, public, race, relay, shout, sky, soccer, sound, speaker, sports, stadium, system, trumpets, voice, white,