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A public address system (or PA system) is an electronic system comprising microphones, amplifiers, loudspeakers, and related equipment. It increases the apparent volume (loudness) of a human voice, musical instrument, or other acoustic sound source or recorded sound or music.
The PA System is a site-wide automatic announcement system that can be heard in the Site 19. The system can call a wide variety of personnel to various locations when needed. Exemple: A scientist needs a janitorial team, so he uses the radio to call the Janitorial crew 4E.
The PA System is a site-wide automatic announcement system that can be heard in the intro sequence. The system can call a wide variety of personnel to various locations. The following combinations are possible: Opening line "Attention." https://scpcb.fandom
PA system. A public address system, commonly known as a PA system, is a network of sound devices that can play sound to several people. They are often used to make announcements in large buildings or neighbourhoods.
2014年3月28日 · 什麼是公共廣播系統. 公共廣播系統 是在有限的範圍內為公眾服務的廣播系統。 在常規情況下，公共廣播信號通過布設在廣播服務區內的廣播線路傳輸，是一種單向的 (下傳的)有線廣播。 通常設置在社區、車站、機場、體育場館、機關、部隊、 企業 、學校、大廈、超市及各種場館之內，用於發佈新聞和 內部信息 、發佈作息信號、提供背景音樂，以及用於尋呼和強行插入災害性事故緊急廣播等。 因而成為城鄉及現代都市中各種公共場所不可或缺的組成部分。 公共廣播 也有用無線傳輸的，但不是主流。 [ 編輯] 公共廣播系統的分類. 公共廣播系統按用途可分為以下幾類： (1)面向公眾區 (廣場、車站、 碼頭 、 商場 、餐廳、走廊、教室等)和停車場等的公共廣播系統。 這種系統主要用於語音廣播，因此清晰度是首要的。
What Is a PA System: A Detailed Guide. Public Address (PA) systems are an integral part of modern communication, amplifying voices and music to reach a wide audience. Whether you’ve attended a concert, a public event, a school assembly, or a business presentation, you’ve likely encountered a PA system in action.
2017年8月27日 · The three core components of a PA system are – the microphone, which captures sound vibrations and converts them into an electrical signal; the amplifier, which increases and controls electrical signals, and the loudspeaker, which converts an electrical audio signal into vibrations and broadcasts them as a sound.
