Ключевые слова: 3d, advertisement, advertising, aircraft, amplifier, announce, attention, banner, broadcast, business, cloudy, color, colorful, colors, communicate, communication, concept, design, different, element, equipment, expressions, information, leadership, letter, lightengine, listening, loudspeaker, megaphone, message, noise, object, please, promotion, public, realistic, road, scream, shout, shouting, sign, sky, social, speak, symbol, technology, template, trace, volume, warning,