Ключевые слова: anxiety, audience, audio, auditorium, background, building, business, closeup, club, color, concepts, concert, conference, convention, crowd, defocused, discussion, entertainment, equipment, event, focus, group, hall, horizontal, ideas, indoors, karaoke, large, lecture, listening, meeting, microphone, microphone on stage, object, performance, person, presentation, public, seat, selective, seminar, sound, space, speaker, spectator, speech, stage, talk, theater, theatrical,