In sound reproduction, device for converting electrical energy into acoustical (sound) signal energy that is radiated into a room or open air (seeacoustics). The part of the speaker that converts electrical into mechanical energy is frequently called the motor, or voice coil. The motor vibrates a diaphragm that vibrates the air in immediate contact with it, producing a sound wave corresponding to the pattern of the original speech, music, or other acoustic signal.
Variants of LOUDSPEAKER
loudspeaker or speaker
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