sound generator
a vibrating object which produces a sound; any kind of device made or used for the purpose of generating sound
musical instrument
device created or adapted to make musical sounds
siren
loud noise-making device
buzzer
equipment producing a buzzing sound signal, for example either by mechanical, electromechanical or piezoelectric means
striking clock
clock that audibly sounds the hours
speech-generating device
augmenting speech device
Acoustic Vehicle Alerting System
device for making electric vehicle warning sounds
siren
vehicle-mounted siren
singing bird box
novelty device containing a bird automaton
Clicker
small noisemaker, used in animal training
loudspeaker
electroacoustic transducer that converts an electrical audio signal into a corresponding sound
white noise machine
device that produces white noise or other similar random sounds
whistle
instrument which produces sound from a stream of forced air
acoustic horn
tapered sound guide designed to provide an acoustic impedance match between a sound source and free air