public address systems
**public address systems**
What is public address systems?
A public address system (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 signal. PA systems are used in any public location that requires an announcer to be heard at a distance or over a large area, such as schools, stadiums, concert venues, and transportation terminals. They can range from small, portable systems to large, complex installations.
Which job functions commonly mention public address systems?
Which organizations are mentioning public address systems?
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