public address system
Venue sound equipment
A public address system is electronic equipment for amplifying sound to reach large audiences—microphones, amplifiers, and speakers working together.
Schools use them for announcements, stadiums for play-by-play, airports for boarding calls.
Often shortened to PA system or just PA: The principal's voice crackled over the PA.
Sound amplification device
- microphoneAudio input device
- amplifierSignal-strengthening electronic device
- mixerCombines ingredients or people
- speakerOne who talks
intercom · megaphone · soundboard · equalizer · tweeter · woofer · subwoofer · transducer
Large venue for spectators
- arenaVenue for contests
- airportAviation passenger facility
- train stationPassenger boarding facility for locomotives
- schoolPlace of instruction
mall · hospital · factory · warehouse · mosque · temple · church · plaza
Amount of space filled
- amplificationIncrease in intensity
- feedbackReturned response data
- echoReflected sound wave
- resonanceAmplified oscillation at natural frequency
projection · decibel · clarity · bass · treble · gain · acoustics · distortion
Gathering for a cause
- concertLive musical performance
- festivalOrganized public celebration
- ceremonyFormal event marking occasions
- protestPublic expression of disapproval
commencement · parade · speech · keynote · assembly · townhall · gathering · demonstration
Transmitted media signal
- messageTransmitted communication
- notificationFormal notice given
- alertWarning or watchfulness
- bulletinBrief public announcement
proclamation · advisory · statement · update · directive · warning · instruction · reminder
loudspeaker
Sound amplification device
- microphoneAudio input device
- amplifierSignal-strengthening electronic device
- mixerCombines ingredients or people
speaker · intercom · megaphone · soundboard · equalizer · tweeter · woofer · subwoofer · transducer · cable
stadium
Large venue for spectators
- arenaVenue for contests
- airportAviation passenger facility
- train stationPassenger boarding facility for locomotives
school · mall · hospital · factory · warehouse · mosque · temple · church · plaza · terminal
volume
Amount of space filled
- amplificationIncrease in intensity
- feedbackReturned response data
- echoReflected sound wave
resonance · projection · decibel · clarity · bass · treble · gain · acoustics · distortion · reverb
rally
Gathering for a cause
- concertLive musical performance
- festivalOrganized public celebration
- ceremonyFormal event marking occasions
protest · commencement · parade · speech · keynote · assembly · townhall · gathering · demonstration · inauguration
broadcast
Transmitted media signal
- messageTransmitted communication
- notificationFormal notice given
- alertWarning or watchfulness
bulletin · proclamation · advisory · statement · update · directive · warning · instruction · reminder · schedule
- alertsalarm, alert, warning, notification, push notifications
- ferry terminalferry slip, boarding gate, boarding ramp, gangway, mooring
- safety alertswarning sign, caution sign, danger sign, hazard sign, warning light
public address systemwhisper
Speech without full voice
confidential communication · direct message · earpiece · telephone · headphones
public address systemsilence
Total lack of sound
soundproofing · mute · hushed tones · whispering · noise cancellation
public address systemwhisper
Speech without full voice
hushed tone · murmur · sotto voce · silence
address, public, system, publish, republic, publication, publishing, published, publicize