Ключевые слова: abstract, audience, auditorium, background, blur, blurred, blurry, boardroom, bokeh, business, businessman, center, chair, communication, concept, conference, congress, convention, corporate, crowd, defocused, education, equipment, event, explaining, group, hall, interior, international, lecture, light, media, meeting, microphone, modern, participants, people, person, podium, presentation, professional, public, room, screen, seminar, speaker, speech, study, table, training,