Ключевые слова: announce, announcement, audio, auditorium, background, blurred, bokeh, broadcast, business, center, chair, chrome, close, closeup, communication, concept, concert, conference, congress, convention, copy, cultural, culture, dais, dof, electronic, entertainment, equipment, event, hall, karaoke, lecture, live, media, meeting, mic, microphone, music, musical, performance, presentation, room, sound, space, speak, speech, stage, technology, voice,