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speaker |
Also found in: Dictionary/thesaurus, Legal, Wikipedia, Hutchinson | 0.03 sec. |
loudspeakeror speakerIn sound reproduction, device for converting electrical energy into acoustical (sound) signal energy that is radiated into a room or open air (see acoustics). 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. speakerA device that converts analog audio signals into the equivalent air vibrations in order to make audible sound. Although CRT usage has faded, speakers designed for computers are shielded to avoid magnetic interference with the CRT's magnetic coil. Speaker the presiding officer in any of numerous legislative bodies, including the House of Commons in Britain and Canada and the House of Representatives in the US, Australia, and New Zealand speaker [′spēk·ər] (engineering acoustics)
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| But in between there were the speakerships of Cruz Bustamante and Antonio Villaraigosa. The Fresno lawmaker said he hoped to avoid the ``painful, punitive and nonproductive'' transitions of earlier speakerships, but he acknowledged that partisanship was a fact of life in the fractious Assembly, which has had four speakers in less than two years. |
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