Ключевые слова: acoustic, advice, amplifier, audience, audio, broadcasting, business, coaching, communication, conference, contact, device, discusses, entertainment, equipment, event, finger, information, instrument, laughter, lecture, listening, man, manager, material, meeting, mic, microphone, object, participant, performance, point, presentation, question, radio, seminar, smiling, sound, speak, speaker, speech, studio, support, teaching, toward, training, turns, voice, volume, woofer,