Public Address System (PAS)
Public Address System (PA system) is an electronic sound amplification and distribution system with a microphone, amplifier and loudspeakers used to allow a person to address a large public.
The process begins with a sound source (such as a human voice) which creates waves of sound (acoustical energy) These waves are detected by a microphone which converts them to electrical energy This signal is amplified in an amplifier up to a required level The loudspeaker converts the electrical signal back into sound waves, which are heard by human ears.
Trusted Principals
