Ключевые слова: audience, background, blur, broadcast, business, camera, cameraman, cctv, cinema, commercial, communication, concept, conference, convention, digital, education, equipment, event, events, exhibition, hall, industry, learning, media, meeting, microphone, movie, news, on air, people, person, photographer, presentation, production, professional, public, record, recorder, room, seminar, seminars, speaker, speech, stage, studio, technology, television, tv, video,