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 how_do_leds_and_sound_work_together [2016/03/28 18:23]dwallace how_do_leds_and_sound_work_together [2016/04/04 22:15] (current)dwallace Both sides previous revision Previous revision 2016/04/04 22:15 dwallace 2016/03/28 18:23 dwallace 2016/03/21 17:47 dwallace created 2016/04/04 22:15 dwallace 2016/03/28 18:23 dwallace 2016/03/21 17:47 dwallace created Line 1: Line 1: ===== How do LEDs and sound work together? ===== ===== How do LEDs and sound work together? ===== - For some, the electrical concepts behind speakers may seem to complex to comprehend, but it actually uses a fairly simple concept involving vibrations of air molecules. In order to make these vibrations, a cone is set up like the one pictured below. When an alternating current is provided through the coil, it creates an electromagnetic field that attracts and repels from the magnet positioned opposite of the coil. This then "​pumps"​ the air through the cone, vibrating at certain frequencies depending on the current used by the coil, thus creating sound. + For some, the electrical concepts behind speakers may seem too complex to comprehend, but it actually uses a fairly simple concept involving vibrations of air molecules. In order to make these vibrations, a cone is set up like the one pictured below. When an alternating current is provided through the coil, it creates an electromagnetic field that attracts and repels from the magnet positioned opposite of the coil. This then "​pumps"​ the air through the cone, vibrating at certain frequencies depending on the current used by the coil, thus creating sound. {{ http://​cdn4.explainthatstuff.com/​how-a-loudspeaker-works.gif }} {{ http://​cdn4.explainthatstuff.com/​how-a-loudspeaker-works.gif }}