Ключевые слова: audience, audio, auditorium, background, broadcasting, business, businessman, center, communication, concept, concert, conference, convention, education, entertainment, equipment, event, festival, freedom, hearing, interview, learning, lecture, meeting, mic, microphone, music, people, performance, podium, presentation, professional, public, radio, room, seminar, show, sound, speak, speaker, speech, stage, studio, talk, teaching, technology, training, university, voice, workshop,