{"id":16847,"date":"2020-06-04T12:31:32","date_gmt":"2020-06-04T10:31:32","guid":{"rendered":"https:\/\/www.preform.de\/?page_id=16847"},"modified":"2020-06-04T16:23:45","modified_gmt":"2020-06-04T14:23:45","slug":"surface-d-absorption-equivalente","status":"publish","type":"page","link":"https:\/\/www.preform.de\/fr\/surface-d-absorption-equivalente\/","title":{"rendered":"Surface d&#8217;absorption \u00e9quivalente"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"16847\" class=\"elementor elementor-16847\" data-elementor-settings=\"{&quot;ha_cmc_init_switcher&quot;:&quot;no&quot;}\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-627f504 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"627f504\" data-element_type=\"section\" data-e-type=\"section\" 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elementor-element-be0fb17 elementor-widget elementor-widget-global elementor-global-4576 elementor-widget-breadcrumbs\" data-id=\"be0fb17\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;architecturer_ext_is_mobile_menu&quot;:&quot;false&quot;,&quot;architecturer_ext_is_scrollme&quot;:&quot;false&quot;,&quot;architecturer_ext_is_smoove&quot;:&quot;false&quot;,&quot;architecturer_ext_is_parallax_mouse&quot;:&quot;false&quot;,&quot;architecturer_ext_is_infinite&quot;:&quot;false&quot;,&quot;architecturer_ext_is_fadeout_animation&quot;:&quot;false&quot;}\" data-widget_type=\"breadcrumbs.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p id=\"breadcrumbs\"><span><span><a href=\"https:\/\/www.preform.de\/fr\/\">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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-afa080f elementor-section-stretched elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"afa080f\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;stretch_section&quot;:&quot;section-stretched&quot;,&quot;background_background&quot;:&quot;classic&quot;,&quot;architecturer_ext_is_background_parallax&quot;:&quot;false&quot;,&quot;architecturer_ext_is_background_on_scroll&quot;:&quot;false&quot;,&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-66 elementor-top-column elementor-element elementor-element-d68c6c7\" data-id=\"d68c6c7\" data-element_type=\"column\" data-e-type=\"column\" 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data-settings=\"{&quot;architecturer_ext_is_mobile_menu&quot;:&quot;false&quot;,&quot;architecturer_ext_is_scrollme&quot;:&quot;false&quot;,&quot;architecturer_ext_is_smoove&quot;:&quot;false&quot;,&quot;architecturer_ext_is_parallax_mouse&quot;:&quot;false&quot;,&quot;architecturer_ext_is_infinite&quot;:&quot;false&quot;,&quot;architecturer_ext_is_fadeout_animation&quot;:&quot;false&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Surface d'absorption \u00e9quivalente<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9c25572 elementor-widget elementor-widget-text-editor\" data-id=\"9c25572\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;architecturer_ext_is_mobile_menu&quot;:&quot;false&quot;,&quot;architecturer_ext_is_scrollme&quot;:&quot;false&quot;,&quot;architecturer_ext_is_smoove&quot;:&quot;false&quot;,&quot;architecturer_ext_is_parallax_mouse&quot;:&quot;false&quot;,&quot;architecturer_ext_is_infinite&quot;:&quot;false&quot;,&quot;architecturer_ext_is_fadeout_animation&quot;:&quot;false&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Lorsqu&#8217;il s&#8217;agit de calculer le temps de r\u00e9verb\u00e9ration dans des pi\u00e8ces ferm\u00e9es, la surface d&#8217;absorption \u00e9quivalente est particuli\u00e8rement importante. Plus la surface est grande pour une absorption sonore imaginaire de 100%, plus le temps de r\u00e9verb\u00e9ration est court. Dans les pi\u00e8ces existantes, le temps de r\u00e9verb\u00e9ration est g\u00e9n\u00e9ralement d\u00e9termin\u00e9 par une m\u00e9thode de mesure appropri\u00e9e. Cependant, il est utile de calculer le temps de r\u00e9verb\u00e9ration pr\u00e9vu d\u00e8s la planification d&#8217;un objet. Cela fonctionne en estimant la surface d&#8217;absorption \u00e9quivalente. De cette mani\u00e8re, des corrections peuvent \u00eatre apport\u00e9es en temps utile au moyen de mesures structurelles.<br \/>La surface d&#8217;absorption \u00e9quivalente est une surface imaginaire avec un coefficient d&#8217;absorption de 1. Il en r\u00e9sulte une absorption identique \u00e0 celle de la surface r\u00e9elle de l&#8217;absorbeur de son. La surface d&#8217;absorption \u00e9quivalente est toujours donn\u00e9e en m2.<\/p><p>La surface d&#8217;absorption d&#8217;une pi\u00e8ce est appel\u00e9e \u00ab\u00a0capacit\u00e9 d&#8217;absorption\u00a0\u00bb dans diff\u00e9rentes normes. Il est g\u00e9n\u00e9ralement d\u00e9termin\u00e9 \u00e0 partir du temps de r\u00e9verb\u00e9ration mesur\u00e9, mais peut \u00e9galement \u00eatre d\u00e9termin\u00e9 (approximativement) \u00e0 partir du niveau sonore moyen que la source sonore de r\u00e9f\u00e9rence dans une pi\u00e8ce.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f2a047a elementor-widget elementor-widget-global elementor-global-4223 elementor-widget-spacer\" data-id=\"f2a047a\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"#presse\" data-settings=\"{&quot;architecturer_ext_is_mobile_menu&quot;:&quot;false&quot;,&quot;architecturer_ext_is_scrollme&quot;:&quot;false&quot;,&quot;architecturer_ext_is_smoove&quot;:&quot;false&quot;,&quot;architecturer_ext_is_parallax_mouse&quot;:&quot;false&quot;,&quot;architecturer_ext_is_infinite&quot;:&quot;false&quot;,&quot;architecturer_ext_is_fadeout_animation&quot;:&quot;false&quot;}\" 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elementor-size-md\" href=\"https:\/\/www.preform.de\/fr\/glossaire-acoustique\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Retour 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<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-9711ae7\" data-id=\"9711ae7\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;architecturer_ext_is_mobile_menu&quot;:&quot;false&quot;,&quot;architecturer_ext_is_scrollme&quot;:&quot;false&quot;,&quot;architecturer_ext_is_smoove&quot;:&quot;false&quot;,&quot;architecturer_ext_is_parallax_mouse&quot;:&quot;false&quot;,&quot;architecturer_ext_is_infinite&quot;:&quot;false&quot;,&quot;architecturer_ext_is_fadeout_animation&quot;:&quot;false&quot;}\">\n\t\t\t<div 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elementor-size-md\" href=\"https:\/\/www.preform.de\/fr\/contact\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Contactez-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<div class=\"elementor-element elementor-element-11dff7e elementor-widget elementor-widget-global elementor-global-4223 elementor-widget-spacer\" data-id=\"11dff7e\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"#presse\" data-settings=\"{&quot;architecturer_ext_is_mobile_menu&quot;:&quot;false&quot;,&quot;architecturer_ext_is_scrollme&quot;:&quot;false&quot;,&quot;architecturer_ext_is_smoove&quot;:&quot;false&quot;,&quot;architecturer_ext_is_parallax_mouse&quot;:&quot;false&quot;,&quot;architecturer_ext_is_infinite&quot;:&quot;false&quot;,&quot;architecturer_ext_is_fadeout_animation&quot;:&quot;false&quot;}\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\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<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-9876897 elementor-hidden-tablet elementor-hidden-phone\" data-id=\"9876897\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;architecturer_ext_is_mobile_menu&quot;:&quot;false&quot;,&quot;architecturer_ext_is_scrollme&quot;:&quot;false&quot;,&quot;architecturer_ext_is_smoove&quot;:&quot;false&quot;,&quot;architecturer_ext_is_parallax_mouse&quot;:&quot;false&quot;,&quot;architecturer_ext_is_infinite&quot;:&quot;false&quot;,&quot;architecturer_ext_is_fadeout_animation&quot;:&quot;false&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\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<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Surface d&#8217;absorption \u00e9quivalente Lorsqu&#8217;il s&#8217;agit de calculer le temps de r\u00e9verb\u00e9ration dans des pi\u00e8ces ferm\u00e9es, la surface d&#8217;absorption \u00e9quivalente est particuli\u00e8rement importante. Plus la surface est grande pour une absorption sonore imaginaire de 100%, plus le temps de r\u00e9verb\u00e9ration est [&hellip;]<\/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-16847","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Explications sur la surface d&#039;absorption \u00e9quivalente | PREFORM<\/title>\n<meta name=\"description\" content=\"Lorsqu&#039;il s&#039;agit de calculer le temps de r\u00e9verb\u00e9ration dans des pi\u00e8ces ferm\u00e9es, la surface d&#039;absorption \u00e9quivalente est particuli\u00e8rement importante.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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