"Public announcement" redirects here. For the musical group, see Public Announcement.
Horn loudspeakers are often used to broadcast sound in outdoor locations.Rear panel of a medium-sized PA system, positioned at one side of the stage at a concert of the musical group Dead Can Dance in 2022, the size being about 3 m from left to right. The setup includes the mixing console for the sound engineer (operating interface with slide controls etc. on the rear) and also the power amplifiers with loudspeaker cables, not in the picture are only the loudspeaker systems distributed around the stage.
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. PA systems are used in any public venue that requires that an announcer, performer, etc. be sufficiently audible at a distance or over a large area. Typical applications include sports stadiums, public transportation vehicles and facilities, and live or recorded music venues and events. A PA system may include multiple microphones or other sound sources, a mixing console to combine and modify multiple sources, and multiple amplifiers and loudspeakers for louder volume or wider distribution.
Simple PA systems are often used in small venues such as school auditoriums, churches, and small bars. PA systems with many speakers are widely used to make announcements in public, institutional and commercial buildings and locations—such as schools, stadiums, and passenger vessels and aircraft. Intercom systems, installed in many buildings, have both speakers throughout a building, and microphones in many rooms so occupants can respond to announcements. PA and Intercom systems are commonly used as part of an emergency communication system.
The term sound reinforcement system generally means a PA system used specifically for live music or other performances.[1] In Britain any PA system is sometimes colloquially referred to as a Tannoy, after the company of that name, now owned by TC Electronic Group, which supplied many of the PA systems used previously in Britain.[2]
^Bruce Borgerson (November 1, 2003). "Is it P.A. or SR?". Sound & Video Contractor. Prism Business Media. Archived from the original on May 20, 2015. Retrieved May 19, 2015.
^"Tannoy definition". Cambridge Online Dictionary. Retrieved 19 May 2015. a system of equipment that is used for making speech loud enough for a large number of people to hear, especially to give information
and 27 Related for: Public address system information
A publicaddresssystem (or PA system) is an electronic system comprising microphones, amplifiers, loudspeakers, and related equipment. It increases the...
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vessels, the following announcement would be made using the vessel’s publicaddresssystem (known as the 1MC): General Quarters, General Quarters. All hands...
all played roles in creating the system. At the 1939 New York World's Fair, a very large two-way publicaddresssystem was mounted on a tower at Flushing...
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(sometimes called form or home room) and announcements broadcast over a publicaddresssystem. Periodic school assemblies can be a forum for special presenters...
performance to adjust the sound on the venue's sound reinforcement or publicaddresssystem. The performer and the audio engineers run through a small portion...
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events worldwide, and a publicaddress announcer at 5 Olympic Games. He is one of the current voices of the underground train system in Denver International...
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people. A large candlelight vigil may have invited speakers with a publicaddresssystem and may be covered by local or national media. Speakers give their...
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computerised publicaddresssystem can also employ concatenation for dynamic public announcements (for example, flights in an airport). The system would archive...
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