Ключевые слова: 3d, alert, announce, announcement, art, audio, background, broadcast, broadcasting, bullhorn, communicate, communication, concept, cut, design, equipment, flat, horn, icon, illustration, isolated, long, loud, loudspeaker, megaphone, message, music, object, origami, paper, paperart, papercut, public, scream, shadow, shout, sign, sound, speak, speaker, speech, symbol, voice, volume, volumetric, warning,