Ключевые слова: audience, audio, auditorium, broadcast, broadcasting, business, class, coach, coaching, communication, concert, conference, congressspeech, convention, education, entertainment, equipment, event, explaining, hall, karaoke, lecture, light, live, meeting, mic, music, musical, party, podium, presentation, professional, public, radio, record, retro, seminar, sing, sound, speak, speaker, speech, stage, stand, studio, teaching, technology, training, trainingbusiness, voice,