{"id":2029,"date":"2012-12-18T10:15:20","date_gmt":"2012-12-18T14:45:20","guid":{"rendered":"https:\/\/seryhumano.com\/web\/?p=2029"},"modified":"2013-03-06T17:29:47","modified_gmt":"2013-03-06T21:59:47","slug":"el-sonido","status":"publish","type":"post","link":"https:\/\/seryhumano.com\/web\/?p=2029","title":{"rendered":"El Sonido"},"content":{"rendered":"<p><a href=\"https:\/\/seryhumano.com\/web\/?attachment_id=2030\" rel=\"attachment wp-att-2030\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-2030\" alt=\"sonido\" src=\"https:\/\/seryhumano.com\/web\/wp-content\/uploads\/2012\/12\/sonido.jpg\" width=\"274\" height=\"184\" \/><\/a>El sonido es consecuencia del movimiento, como el viento, el agua del mar, la cuerda de un viol\u00edn o el aire que al chocar con las cuerdas vocales de la laringe produce la voz. Sin movimiento, no hay sonido.<\/p>\n<p>Cuando un objeto se mueve, sacude las mol\u00e9culas del aire que le rodea. Estas mol\u00e9culas transmiten el movimiento a las mol\u00e9culas contiguas, y as\u00ed sucesivamente, originando las ondas sonoras, que como esferas conc\u00e9ntricas se propagan en todas las direcciones, a una velocidad de 333 metros por segundo en el aire y de 1.500 metros por segundo en el agua.<\/p>\n<p>El sonido puede definirse mediante dos par\u00e1metros: su frecuencia y su intensidad.<a href=\"https:\/\/seryhumano.com\/web\/?attachment_id=2031\" rel=\"attachment wp-att-2031\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-full wp-image-2031\" alt=\"frecuencia e intensidad\" src=\"https:\/\/seryhumano.com\/web\/wp-content\/uploads\/2012\/12\/frecuencia-e-intensidad.jpg\" width=\"259\" height=\"194\" \/><\/a><\/p>\n<p>La frecuencia, o velocidad de propagaci\u00f3n de la onda sonora, se mide por hercios (Hz) o ciclos de la onda por segundo; la palabra hercio se introdujo como homenaje al f\u00edsico alem\u00e1n Heinrich Hertz (1857-1894). La frecuencia o velocidad del sonido es lo que percibimos como tono. Las altas frecuencias producen tonos altos y sonidos agudos; las bajas frecuencias, tonos bajos y sonidos graves.<\/p>\n<p><a href=\"https:\/\/seryhumano.com\/web\/?attachment_id=2032\" rel=\"attachment wp-att-2032\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-2032\" alt=\"dicibelios\" src=\"https:\/\/seryhumano.com\/web\/wp-content\/uploads\/2012\/12\/dicibelios.jpg\" width=\"339\" height=\"129\" srcset=\"https:\/\/seryhumano.com\/web\/wp-content\/uploads\/2012\/12\/dicibelios.jpg 339w, https:\/\/seryhumano.com\/web\/wp-content\/uploads\/2012\/12\/dicibelios-300x114.jpg 300w\" sizes=\"auto, (max-width: 339px) 100vw, 339px\" \/><\/a>La intensidad del sonido se mide en dicibelios (dB), que es la d\u00e9cima parte de un belio, escala creada para el o\u00eddo humano. Valora la presi\u00f3n que ejerce la onda sonora en la membrana del t\u00edmpano, de modo que un sonido que mide 0 decibelios es imperceptible y uno que mide 130 decibelios es percibido con dolor.<\/p>\n<p>La palabra belio deriva del apellido de Alexander Graham Bell (1847- 1922), f\u00edsico escoc\u00e9s que invent\u00f3 el tel\u00e9fono.<\/p>\n<p>El o\u00eddo de una persona adulta normal solo percibe los sonidos de frecuencias comprendidas entre 16 y 20.000 ciclos por segundo o hercios, que son las frecuencias m\u00e1s bajas entre los mam\u00edferos; y con una intensidad inferior a 130 decibelios.<a href=\"https:\/\/seryhumano.com\/web\/?attachment_id=2033\" rel=\"attachment wp-att-2033\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-full wp-image-2033\" alt=\"Alexander Graham Bell\" src=\"https:\/\/seryhumano.com\/web\/wp-content\/uploads\/2012\/12\/Alexander-Graham-Bell.jpg\" width=\"225\" height=\"225\" srcset=\"https:\/\/seryhumano.com\/web\/wp-content\/uploads\/2012\/12\/Alexander-Graham-Bell.jpg 225w, https:\/\/seryhumano.com\/web\/wp-content\/uploads\/2012\/12\/Alexander-Graham-Bell-150x150.jpg 150w, https:\/\/seryhumano.com\/web\/wp-content\/uploads\/2012\/12\/Alexander-Graham-Bell-50x50.jpg 50w\" sizes=\"auto, (max-width: 225px) 100vw, 225px\" \/><\/a><\/p>\n<p>La mejor audici\u00f3n del o\u00eddo humano se consigue entre 1.000 y 4.000 hercios de frecuencia, que es la zona ac\u00fastica de mayor sensibilidad. Los sonidos de una conversaci\u00f3n normal oscilan entre 250 y 4.000 hercios de frecuencia y entre 20-80 decibelios de intensidad. Se considera perjudicial para la salud cuando durante la actividad laboral se supera la media de 87 decibelios.<\/p>\n<p><a href=\"https:\/\/seryhumano.com\/web\/?attachment_id=2034\" rel=\"attachment wp-att-2034\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-2034\" alt=\"exceso de sonido\" src=\"https:\/\/seryhumano.com\/web\/wp-content\/uploads\/2012\/12\/exceso-de-sonido.jpg\" width=\"267\" height=\"189\" \/><\/a>El o\u00eddo humano puede distinguir sonidos que diferencian entre ellos 2 hercios de frecuencia. Las frecuencias no audibles, inferiores a 16 hercios, se llaman &lt;&lt;infrasonidos&gt;&gt;, y las superiores a 20.000 hercios, &lt;&lt;ultrasonidos&gt;&gt;.<\/p>\n<p>seryhumano.com \/ J.L. Mat\u00ed I Vilalta<\/p>\n","protected":false},"excerpt":{"rendered":"<p>El sonido es consecuencia del movimiento, como el viento, el agua del mar, la cuerda de un viol\u00edn o el aire que al chocar con las cuerdas vocales de la laringe produce la voz. Sin movimiento, no hay sonido. Cuando un objeto se mueve, sacude las mol\u00e9culas del aire que le rodea. Estas mol\u00e9culas transmiten&hellip;<\/p>\n","protected":false},"author":2,"featured_media":2038,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[122,120],"tags":[111],"class_list":["post-2029","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cultura","category-ser-saludable","tag-slider","category-122","category-120","description-off"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>El Sonido &#187; SeryHumano.com<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/seryhumano.com\/web\/?p=2029\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"El Sonido &#187; SeryHumano.com\" \/>\n<meta property=\"og:description\" content=\"El sonido es consecuencia del movimiento, como el viento, el agua del mar, la cuerda de un viol\u00edn o el aire que al chocar con las cuerdas vocales de la laringe produce la voz. Sin movimiento, no hay sonido. Cuando un objeto se mueve, sacude las mol\u00e9culas del aire que le rodea. 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