There is a loudspeaker in a radio.
a die-cast aluminium loudspeaker chassis.
The loudspeakers blared the speech repeatedly.
The loudspeaker announced each airplane as it landed at the airport.
addressed us over the loudspeaker; can't tell you over the phone.
Abstract: A network model was developed to analyze a piezoelectric source driving a resonantor to investigate the coupling of the piezoelectric loudspeaker with a thermoacoustic resonantor.
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