Ключевые слова: abstract, announce, announcement, audience, audio, background, bass, business, communication, concept, design, electronic, equipment, fidelity, high, icon, isolated, loud, loudspeaker, luxury, media, megaphone, message, microphone, modern, music, musical, object, play, powerful, public, radio, record, rock, set, sound, speaker, speech, stereo, studio, technology, voice, volume, web, white,