loudspeaker
Audio output device
A loudspeaker is a device that converts electrical signals into audible sound, projecting it loudly enough for a room or crowd to hear.
Loudspeakers are built into radios, televisions, and stereo systems, or stand alone as separate units.
Public address systems use loudspeakers for announcements: A voice came over the loudspeaker announcing the delay.
Public expression of disapproval
- demonstrationPublic display of opinion
- megaphonePortable voice amplifier
- activismDirect effort for reform
- crowdLarge public gathering
chanting · march · assembly · slogan · placard · organizer · bullhorn · agitator
Vehicle operator
- tweeterSpeaker for treble
- wooferLow-tone loudspeaker
- subwooferLow-frequency speaker unit
- transducerEnergy form converter
horn · diaphragm · coil · magnet · cone · enclosure · cabinet · PA system
Audible wave phenomenon
- frequencyRate of recurrence
- bassDeep pitch or fish
- trebleHigh frequency range
- acousticsStudy of sound transmission
stereo · tone · pitch · equalizer · waveform · resonance · response · bandwidth
Broadcast communication system
- broadcastTransmitted media signal
- intercomShort-range voice transmitter
- announcementPublic declaration of information
- alertWarning or watchfulness
siren · alarm · paging · station · airport · train · school · factory
Signal-strengthening electronic device
- gainPositive return received
- powerEnergy transfer rate
- wattageElectrical output measure
- decibelsAcoustic intensity units
volume · boost · projection · reinforcement · clarity · fidelity · distortion · headroom
Live musical performance
- stageRaised performance platform
- venuePlace of occurrence
- PA systemAmplified announcement network
- monitorDisplay or supervisor
soundcheck · live · festival · band · front of house · mixing · feedback · wedge
One who speaks officially
- voiceSound from throat
- spokespersonAuthorized representative communicator
- broadcasterOne who transmits programs
- announcerOne who introduces programs
propaganda · rhetoric · agitprop · demagogue · firebrand · orator · soapbox · figurehead
protest
Public expression of disapproval
- demonstrationPublic display of opinion
- megaphonePortable voice amplifier
- activismDirect effort for reform
crowd · chanting · march · assembly · slogan · placard · organizer · bullhorn · agitator · campaigner
driver
Vehicle operator
transducer · horn · diaphragm · coil · magnet · cone · enclosure · cabinet · PA system · monitor
sound
Audible wave phenomenon
acoustics · stereo · tone · pitch · equalizer · waveform · resonance · response · bandwidth · midrange
public address
Broadcast communication system
- broadcastTransmitted media signal
- intercomShort-range voice transmitter
- announcementPublic declaration of information
alert · siren · alarm · paging · station · airport · train · school · factory · emergency
amplifier
Signal-strengthening electronic device
decibels · volume · boost · projection · reinforcement · clarity · fidelity · distortion · headroom · output
concert
Live musical performance
monitor · soundcheck · live · festival · band · front of house · mixing · feedback · wedge · stack
mouthpiece
One who speaks officially
- voiceSound from throat
- spokespersonAuthorized representative communicator
- broadcasterOne who transmits programs
announcer · propaganda · rhetoric · agitprop · demagogue · firebrand · orator · soapbox · figurehead · advocate
- audio equipmentmicrophone, headphones, amplifier, amplifiers, subwoofer
- Communication channelsdiscussion, newsletter, debate, bulletin board, town hall
- protestsprotest, demonstration, protest march, demonstrations, rallies
- voice devicesmicrophone, mic, megaphone, bullhorn, PA system
- riot controlriot police, riot gear, riot shield, tear gas, water cannon
- paging systemspager, beeper, PA system, public address, intercom
loudspeakermicrophone
Audio input device
mic · pickup · recording device · sound recorder · voice recorder
loudspeakerheadphones
Wearable speakers for ears
earphones · earbuds · in-ear monitors · headset · earpiece