{"id":16692,"date":"2020-06-04T10:45:21","date_gmt":"2020-06-04T08:45:21","guid":{"rendered":"https:\/\/www.preform.de\/?page_id=16692"},"modified":"2020-06-29T15:09:34","modified_gmt":"2020-06-29T13:09:34","slug":"echo-flottant","status":"publish","type":"page","link":"https:\/\/www.preform.de\/fr\/echo-flottant\/","title":{"rendered":"Echo flottant"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"16692\" class=\"elementor elementor-16692\" 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\" data-settings=\"{&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-100 elementor-top-column elementor-element elementor-element-67497a2\" data-id=\"67497a2\" 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 elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element 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\" 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 elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a900b35 elementor-widget elementor-widget-global elementor-global-4223 elementor-widget-spacer\" data-id=\"a900b35\" 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<div class=\"elementor-element elementor-element-94522cd elementor-widget elementor-widget-heading\" data-id=\"94522cd\" 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=\"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\">Echo flottant<\/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>Dans les pi\u00e8ces, un \u00ab\u00a0\u00e9cho flottant\u00a0\u00bb peut se produire lorsque l&#8217;\u00e9nergie sonore oscille entre des surfaces parall\u00e8les pendant une p\u00e9riode plus longue. Elle se produit lorsqu&#8217;un signal sonore se d\u00e9place plusieurs fois entre au moins deux surfaces hautement r\u00e9fl\u00e9chissantes. Un \u00e9cho flottant peut \u00eatre per\u00e7u subjectivement. Il est g\u00e9n\u00e9ralement per\u00e7u comme d\u00e9rangeante et doit \u00eatre \u00e9vit\u00e9e. Ces \u00e9chos parasites, qui peuvent \u00e9galement se produire entre les parois avant et arri\u00e8re ou entre parois lat\u00e9rales, doivent \u00eatre \u00e9vit\u00e9s par diverses mesures.<\/p><p>Dans de nombreuses pi\u00e8ces, il est possible que les r\u00e9flexions provenant de la paroi arri\u00e8re, directement, mais aussi avec la participation des parois lat\u00e9rales, atteignent la zone avant de la pi\u00e8ce avec un fort retard par rapport au son direct. Cela peut \u00eatre \u00e9vit\u00e9 en pliant le mur arri\u00e8re ou en inclinant sa partie sup\u00e9rieure vers la salle.<\/p><p>Si cela s&#8217;av\u00e8re judicieux dans le cadre de l&#8217;optimisation du temps de r\u00e9verb\u00e9ration, certaines parties de la paroi arri\u00e8re peuvent \u00e9galement \u00eatre con\u00e7ues de mani\u00e8re \u00e0 absorber le son. Les parois lat\u00e9rales doivent \u00e9galement contribuer \u00e0 l&#8217;alimentation en son des zones arri\u00e8re de la pi\u00e8ce par une d\u00e9flexion sensible des r\u00e9flexions. Une r\u00e9duction de cet effet peut \u00eatre obtenue par une conception g\u00e9om\u00e9trique de la pi\u00e8ce et\/ou en recouvrant partiellement les surfaces r\u00e9fl\u00e9chissantes avec un mat\u00e9riau absorbant. Notre \u00e9quipe d&#8217;experts se fera un plaisir de vous conseiller \u00e0 ce sujet !<\/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;}\" 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-33 elementor-top-column elementor-element elementor-element-db8b76a elementor-hidden-tablet elementor-hidden-phone\" data-id=\"db8b76a\" 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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-db7347e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"db7347e\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&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-100 elementor-top-column elementor-element elementor-element-72940e3\" data-id=\"72940e3\" 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 elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7ed0173 elementor-widget elementor-widget-global elementor-global-4813 elementor-widget-spacer\" data-id=\"7ed0173\" 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=\"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\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f7a3d29 elementor-section-content-middle animated-fast elementor-reverse-mobile elementor-section-boxed elementor-section-height-default elementor-section-height-default elementor-invisible\" data-id=\"f7a3d29\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&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-50 elementor-top-column elementor-element elementor-element-dded68a\" data-id=\"dded68a\" 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 elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-70dcb6b elementor-align-left elementor-widget__width-inherit elementor-tablet-align-left elementor-mobile-align-justify ha-has-bg-overlay elementor-widget elementor-widget-button\" data-id=\"70dcb6b\" 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=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link 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 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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-30437fb elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"30437fb\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&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-100 elementor-top-column elementor-element elementor-element-96d1b4c\" data-id=\"96d1b4c\" 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 elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-858e806 elementor-widget elementor-widget-global elementor-global-4223 elementor-widget-spacer\" data-id=\"858e806\" 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\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1d25ab0 elementor-section-stretched elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1d25ab0\" 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-e2ea997\" data-id=\"e2ea997\" 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 elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c69f307 elementor-widget elementor-widget-global elementor-global-4223 elementor-widget-spacer\" data-id=\"c69f307\" 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<div class=\"elementor-element elementor-element-c70229c elementor-widget elementor-widget-text-editor\" data-id=\"c70229c\" 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<h4 data-gramm=\"false\"><strong>Souhaitez-vous recevoir un devis personnalis\u00e9 ou de plus amples informations ?<br \/>Contactez-nous d\u00e8s maintenant.<\/strong><\/h4><h4 data-gramm=\"false\"><strong>\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<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-d4d921a elementor-hidden-tablet elementor-hidden-phone\" data-id=\"d4d921a\" 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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>Echo flottant Dans les pi\u00e8ces, un \u00ab&nbsp;\u00e9cho flottant&nbsp;\u00bb peut se produire lorsque l&#8217;\u00e9nergie sonore oscille entre des surfaces parall\u00e8les pendant une p\u00e9riode plus longue. Elle se produit lorsqu&#8217;un signal sonore se d\u00e9place plusieurs fois entre au moins deux surfaces hautement [&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-16692","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 l&#039;\u00e9cho flottant | PREFORM<\/title>\n<meta name=\"description\" content=\"Dans les pi\u00e8ces, un \u00e9cho flottant peut se produire lorsque l&#039;\u00e9nergie sonore oscille entre des surfaces parall\u00e8les pendant une p\u00e9riode plus longue.\" \/>\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\/echo-flottant\/\" 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