{"id":16840,"date":"2020-06-04T12:28:01","date_gmt":"2020-06-04T10:28:01","guid":{"rendered":"https:\/\/www.preform.de\/?page_id=16840"},"modified":"2020-09-23T12:18:21","modified_gmt":"2020-09-23T10:18:21","slug":"reflexion-sonore","status":"publish","type":"page","link":"https:\/\/www.preform.de\/fr\/reflexion-sonore\/","title":{"rendered":"R\u00e9flexion sonore"},"content":{"rendered":"\t\t
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Start<\/a><\/span><\/span><\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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R\u00e9flexion sonore<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Le mot r\u00e9flexion est d\u00e9riv\u00e9 du latin reflectere (r\u00e9fl\u00e9chir). Le processus ne doit pas \u00eatre confondu avec la diffraction et la r\u00e9fraction. En g\u00e9n\u00e9ral, on parle de r\u00e9flexion lorsqu’une onde (en acoustique, une onde sonore) est r\u00e9fl\u00e9chie par une surface. Si la propagation de l’onde est repr\u00e9sent\u00e9e par des rayons perpendiculaires au front d’onde, ces rayons ob\u00e9issent \u00e0 la loi de la r\u00e9flexion, c’est-\u00e0-dire que l’angle d’entr\u00e9e du rayon incident est \u00e9gal \u00e0 l’angle de sortie et que les rayons sont dans le m\u00eame plan d’incidence.<\/p>

En acoustique des salles et des b\u00e2timents, le cas des ondes sonores a\u00e9riennes tombant sur une surface est particuli\u00e8rement int\u00e9ressant. Si l’imp\u00e9dance de la surface s’\u00e9carte de l’imp\u00e9dance caract\u00e9ristique de l’air (imp\u00e9dance caract\u00e9ristique du son), l’onde sonore est plus ou moins r\u00e9fl\u00e9chie.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tRetour au glossaire<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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Souhaitez-vous recevoir un devis personnalis\u00e9 ou de plus amples informations ?
Contactez-nous d\u00e8s maintenant.<\/strong><\/h4>

\u00a0<\/strong><\/h4>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tContactez-nous <\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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R\u00e9flexion sonore Le mot r\u00e9flexion est d\u00e9riv\u00e9 du latin reflectere (r\u00e9fl\u00e9chir). Le processus ne doit pas \u00eatre confondu avec la diffraction et la r\u00e9fraction. En g\u00e9n\u00e9ral, on parle de r\u00e9flexion lorsqu’une onde (en acoustique, une onde sonore) est r\u00e9fl\u00e9chie par […]<\/p>\n","protected":false},"author":5,"featured_media":0,"parent":10592,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-16840","page","type-page","status-publish","hentry"],"yoast_head":"\nExplications sur la r\u00e9flexion sonore | PREFORM<\/title>\n<meta name=\"description\" content=\"En g\u00e9n\u00e9ral, on parle de r\u00e9flexion,d\u00e9riv\u00e9 du latin reflectere, lorsqu'une onde (en acoustique, une onde sonore) est r\u00e9fl\u00e9chie par une surface.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.preform.de\/fr\/reflexion-sonore\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta 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