In basic terms a Public Address Systems (PA Systems) utilize microphones, amplifiers, and speakers, to provide an audio announcement or provision of information to a specified group of people using the PA Systems. This could be office staff, keeping customers informed of promotions within a shop or public service announcements etc. The term Audio‐Visual(AV, or A/V)may refer to work with both a sound and a visual component, the production or use of such works, or to equipment used to create and present such works.
Public Addressing/ Audio Visual Usage
We see/hear Public Address systems, or PA Systems are, in use in hotels, football grounds, shopping centers, banks, Post Offices, super markets, offices, factories and concerts. Public Address systems (PA Systems) can easily be installed as a simple stand‐alone system or it can be integrated within CCTV, Access Control or Fire Alarm Systems. Public Address systems (PA Systems) can be used in a number of applications from small retail outlets to large terminal buildings.