Ключевые слова: arts culture and entertainment, audience, audio, audio equipment, auditorium, broadcast, broadcasting, business, classroom, communication, conference, convention, education, entertainment, equipment, event, karaoke, keynote, lecture, meeting, mic, microphone, music, people, performance, presentation, professional, public, record, recording, seminar, show, sound, speak, speaker, speech, stage, standup, studio, talk, teacher, technology, university, volume,