IMPORTANCE AND EXPLANATION OF PUBLIC ADDRESS SYSTE
Опубликовано в "Общий, Бизнес", язык - English. 8 страниц.
Public Address (PA) system is an electronic system, that is consisting of microphones, loudspeakers, amplifiers, and related equipment. It enhances the apparent volume of a human voice, musical instrument, or other audio sound means or recorded music or sound. Еще
