Ключевые слова: audience, audio, auditorium, blue, blur, business, center, church, communication, conference, congress, convention, emcee, event, hall, indoor, introduce, lecture, lecturer, light, loud, media, meet, meeting, microphone, news, orate, orator, party, people, presentation, presenter, public, room, say, seminar, sound, speak, speaker, speech, stage, talk, toned image, training, two, visual, voice,