{"id":16344,"date":"2020-05-18T11:11:02","date_gmt":"2020-05-18T09:11:02","guid":{"rendered":"https:\/\/www.preform.de\/?page_id=16344"},"modified":"2025-09-18T07:51:00","modified_gmt":"2025-09-18T05:51:00","slug":"acoustic-glossary","status":"publish","type":"page","link":"https:\/\/www.preform.de\/en\/acoustic-glossary\/","title":{"rendered":"Acoustic glossary"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"16344\" class=\"elementor elementor-16344\" 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-7a014bd elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7a014bd\" data-element_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-1d54c9e\" data-id=\"1d54c9e\" data-element_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-dba78f7 elementor-widget elementor-widget-global elementor-global-4576 elementor-widget-breadcrumbs\" data-id=\"dba78f7\" data-element_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\/en\/\">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-7aef703 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7aef703\" data-element_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-69b78d5\" data-id=\"69b78d5\" data-element_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-b271234 elementor-widget elementor-widget-architecturer-slider-parallax\" data-id=\"b271234\" data-element_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=\"architecturer-slider-parallax.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"slider_parallax_wrapper\" data-autoplay=\"0\" data-pagination=\"0\" data-navigation=\"0\" style=\"height:450px;\">\n\t<div class=\"slider_parallax_inner\">\n\t\t<div class=\"slider_parallax_slides\">\n\t\t\t\t\t\t<div class=\"slide is-active \">\n\t\t          \t<div class=\"slide-content\">\n\t\t            \t<div class=\"caption\">\n\t\t\t\t\t\t\t<div class=\"title\"><\/div>\n\t\t\t\t\t\t\t<div class=\"text\">\n\t\t                \t\t\t\t              \t\t<\/div> \n\t\t\t                \t\t            \t<\/div>\n\t\t          \t<\/div>\n\t\t\t\t  \t<div class=\"image-container\"> \n\t\t            \t<img decoding=\"async\" src=\"https:\/\/www.preform.de\/wp-content\/uploads\/2019\/07\/Stockbild_B\u00fcro-\u00e4ltere.jpg\" alt=\"\" class=\"image\" \/>\n\t\t          \t<\/div>\n\t\t        <\/div>\n\t\t\t\t<\/div>\n\t\t\t    \t<\/div>\n<\/div>\n<br class=\"clear\"\/>\n\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-04e6a4c animated-fast elementor-section-boxed elementor-section-height-default elementor-section-height-default elementor-invisible\" data-id=\"04e6a4c\" data-element_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-66 elementor-top-column elementor-element elementor-element-5fb39b1\" data-id=\"5fb39b1\" data-element_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-9198db9 elementor-widget elementor-widget-global elementor-global-4223 elementor-widget-spacer\" data-id=\"9198db9\" data-element_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-d01caa3 elementor-widget elementor-widget-heading\" data-id=\"d01caa3\" data-element_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\">Acoustic glossary<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-89e4d79 elementor-widget elementor-widget-text-editor\" data-id=\"89e4d79\" data-element_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>In the following, we explain some technical terms related to acoustics.<\/p>\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-67625c7 elementor-hidden-tablet elementor-hidden-phone\" data-id=\"67625c7\" data-element_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-2075fa7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2075fa7\" data-element_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-054628b\" data-id=\"054628b\" data-element_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-b261852 elementor-widget elementor-widget-global elementor-global-4813 elementor-widget-spacer\" data-id=\"b261852\" data-element_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-9c5177f elementor-section-content-middle animated-fast elementor-reverse-mobile elementor-section-boxed elementor-section-height-default elementor-section-height-default elementor-invisible\" data-id=\"9c5177f\" data-element_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-4b5c3e0\" data-id=\"4b5c3e0\" data-element_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-d658500 elementor-align-center elementor-widget__width-inherit elementor-mobile-align-justify ha-has-bg-overlay elementor-widget elementor-widget-button\" data-id=\"d658500\" data-element_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\/en\/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\">Contact form<\/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-0df43f2\" data-id=\"0df43f2\" data-element_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-c178d54 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c178d54\" data-element_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-b5058a3\" data-id=\"b5058a3\" data-element_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-9dc39fd elementor-widget elementor-widget-global elementor-global-4232 elementor-widget-spacer\" data-id=\"9dc39fd\" data-element_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-10f52a2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"10f52a2\" data-element_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-86a0d65\" data-id=\"86a0d65\" data-element_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-9188305 elementor-widget elementor-widget-heading\" data-id=\"9188305\" data-element_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<h2 class=\"elementor-heading-title elementor-size-default\">A<\/h2>\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-711e763 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"711e763\" data-element_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-2f1ddf5\" data-id=\"2f1ddf5\" data-element_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-08a7da0 elementor-widget elementor-widget-text-editor\" data-id=\"08a7da0\" data-element_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 style=\"text-align: center\"><span style=\"color: #000000\"><a style=\"color: #000000\" href=\"https:\/\/www.preform.de\/en\/absorbent-material\/\" target=\"_blank\" rel=\"noopener\">Absorbent material<\/a><\/span><\/p><p style=\"text-align: center\"><span style=\"color: #000000\"><a style=\"color: #000000\" href=\"https:\/\/www.preform.de\/en\/acoustic-insulation\/\" target=\"_blank\" rel=\"noopener\">Acoustic insulation<\/a><\/span><\/p><p style=\"text-align: center\"><span style=\"color: #000000\"><a style=\"color: #000000\" href=\"https:\/\/www.preform.de\/en\/anechoic-chamber\/\" target=\"_blank\" rel=\"noopener\">Anechoic chamber<\/a><\/span><\/p><p style=\"text-align: center\"><span style=\"color: #000000\"><a style=\"color: #000000\" href=\"https:\/\/www.preform.de\/en\/audible-range\/\" target=\"_blank\" rel=\"noopener\">Audible range<\/a><\/span><\/p><p style=\"text-align: center\"><a href=\"https:\/\/www.preform.de\/en\/auditory-perception\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #000000\">Auditory perception<\/span><\/a><\/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-cf11e69 elementor-widget elementor-widget-global elementor-global-4229 elementor-widget-spacer\" data-id=\"cf11e69\" data-element_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-7f05f3f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7f05f3f\" data-element_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-9003213\" data-id=\"9003213\" data-element_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-df053a3 elementor-widget elementor-widget-heading\" data-id=\"df053a3\" data-element_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<h2 class=\"elementor-heading-title elementor-size-default\">D<\/h2>\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-92a8caa elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"92a8caa\" data-element_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-8b05915\" data-id=\"8b05915\" data-element_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-692634b elementor-widget elementor-widget-text-editor\" data-id=\"692634b\" data-element_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 style=\"text-align: center\"><span style=\"color: #000000\"><a style=\"color: #000000\" href=\"https:\/\/www.preform.de\/en\/decibel-explanation\/\" target=\"_blank\" rel=\"noopener\">Decibel<\/a><\/span><\/p><p style=\"text-align: center\"><span style=\"color: #000000\"><a style=\"color: #000000\" href=\"https:\/\/www.preform.de\/en\/diffusivity\/\" target=\"_blank\" rel=\"noopener\">Diffusivity<\/a><\/span><\/p><p style=\"text-align: center\"><span style=\"color: #000000\"><a style=\"color: #000000\" href=\"https:\/\/www.preform.de\/en\/din-norm-explanation\/\" target=\"_blank\" rel=\"noopener\">DIN 18041<\/a><\/span><\/p><p style=\"text-align: center\"><a href=\"https:\/\/www.preform.de\/en\/direct-sound\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #000000\">Direct sound<\/span><\/a><\/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-1baf38b elementor-widget elementor-widget-global elementor-global-4229 elementor-widget-spacer\" data-id=\"1baf38b\" data-element_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<div class=\"elementor-element elementor-element-b405ceb elementor-widget elementor-widget-global elementor-global-4229 elementor-widget-spacer\" data-id=\"b405ceb\" data-element_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-869eca0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"869eca0\" data-element_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-3b97605\" data-id=\"3b97605\" data-element_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-eea88a0 elementor-widget elementor-widget-heading\" data-id=\"eea88a0\" data-element_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<h2 class=\"elementor-heading-title elementor-size-default\">E<\/h2>\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-b39b4dc elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b39b4dc\" data-element_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-b9cf040\" data-id=\"b9cf040\" data-element_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-ea09738 elementor-widget elementor-widget-text-editor\" data-id=\"ea09738\" data-element_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 style=\"text-align: center\"><a href=\"https:\/\/www.preform.de\/en\/equivalent-absorption-area\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #000000\">Equivalent absorption area<\/span><\/a><\/p>\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\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-202fb30 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"202fb30\" data-element_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-b9a684d\" data-id=\"b9a684d\" data-element_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-e8c3f2a elementor-widget elementor-widget-heading\" data-id=\"e8c3f2a\" data-element_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<h2 class=\"elementor-heading-title elementor-size-default\">F<\/h2>\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-89a0a9d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"89a0a9d\" data-element_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-5792e3d\" data-id=\"5792e3d\" data-element_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-8960894 elementor-widget elementor-widget-text-editor\" data-id=\"8960894\" data-element_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 style=\"text-align: center\"><span style=\"color: #000000\"><a style=\"color: #000000\" href=\"https:\/\/www.preform.de\/en\/flutter-echo\/\" target=\"_blank\" rel=\"noopener\">Flutter echo<\/a><\/span><\/p><p style=\"text-align: center\"><a href=\"https:\/\/www.preform.de\/en\/frequency\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #000000\">Frequency<\/span><\/a><\/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-881a58e elementor-widget elementor-widget-global elementor-global-4229 elementor-widget-spacer\" data-id=\"881a58e\" data-element_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-c587dae elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c587dae\" data-element_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-ac8da2c\" data-id=\"ac8da2c\" data-element_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-0ce29bf elementor-widget elementor-widget-heading\" data-id=\"0ce29bf\" data-element_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<h2 class=\"elementor-heading-title elementor-size-default\">G<\/h2>\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-8b1789d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8b1789d\" data-element_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-9b4a1bc\" data-id=\"9b4a1bc\" data-element_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-7c42f2a elementor-widget elementor-widget-text-editor\" data-id=\"7c42f2a\" data-element_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 style=\"text-align: center\"><a href=\"https:\/\/www.preform.de\/en\/goals-for-the-improvement-of-room-acoustics\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #000000\">Goals for the improvement of room acoustics<\/span><\/a><\/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-723ee8a elementor-widget elementor-widget-global elementor-global-4229 elementor-widget-spacer\" data-id=\"723ee8a\" data-element_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-ab8e19b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ab8e19b\" data-element_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-860c320\" data-id=\"860c320\" data-element_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-63df3a8 elementor-widget elementor-widget-heading\" data-id=\"63df3a8\" data-element_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<h2 class=\"elementor-heading-title elementor-size-default\">I<\/h2>\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-9d2e3fa elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9d2e3fa\" data-element_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-733d1ab\" data-id=\"733d1ab\" data-element_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-109233d elementor-widget elementor-widget-text-editor\" data-id=\"109233d\" data-element_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 style=\"text-align: center\"><a href=\"https:\/\/www.preform.de\/en\/impact-sound\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #000000\">Impact sound<\/span><\/a><\/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-94bff03 elementor-widget elementor-widget-global elementor-global-4229 elementor-widget-spacer\" data-id=\"94bff03\" data-element_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-7167189 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7167189\" data-element_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-ba943f7\" data-id=\"ba943f7\" data-element_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-e34a26b elementor-widget elementor-widget-heading\" data-id=\"e34a26b\" data-element_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<h2 class=\"elementor-heading-title elementor-size-default\">L<\/h2>\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-0ea843f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"0ea843f\" data-element_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-d4331ec\" data-id=\"d4331ec\" data-element_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-9b37da3 elementor-widget elementor-widget-text-editor\" data-id=\"9b37da3\" data-element_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 style=\"text-align: center\"><a href=\"https:\/\/www.preform.de\/en\/the-lombard-effect\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #000000\">The Lombard effect<\/span><\/a><\/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-1062227 elementor-widget elementor-widget-global elementor-global-4229 elementor-widget-spacer\" data-id=\"1062227\" data-element_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-9911736 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9911736\" data-element_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-4e763d3\" data-id=\"4e763d3\" data-element_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-c1182be elementor-widget elementor-widget-heading\" data-id=\"c1182be\" data-element_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<h2 class=\"elementor-heading-title elementor-size-default\">N<\/h2>\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-7fd7e80 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7fd7e80\" data-element_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-c93358e\" data-id=\"c93358e\" data-element_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-b04921f elementor-widget elementor-widget-text-editor\" data-id=\"b04921f\" data-element_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 style=\"text-align: center\"><span style=\"color: #000000\"><a style=\"color: #000000\" href=\"https:\/\/www.preform.de\/en\/noise-pollution\/\" target=\"_blank\" rel=\"noopener\">Noise pollution<\/a><\/span><\/p><p style=\"text-align: center\"><a href=\"https:\/\/www.preform.de\/en\/noise-protection\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #000000\">Noise protection<\/span><\/a><\/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-d8410cb elementor-widget elementor-widget-global elementor-global-4229 elementor-widget-spacer\" data-id=\"d8410cb\" data-element_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-2196b64 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2196b64\" data-element_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-abdd628\" data-id=\"abdd628\" data-element_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-fe8245b elementor-widget elementor-widget-heading\" data-id=\"fe8245b\" data-element_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<h2 class=\"elementor-heading-title elementor-size-default\">O<\/h2>\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-ba69a13 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ba69a13\" data-element_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-dd2e81b\" data-id=\"dd2e81b\" data-element_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-05c4e57 elementor-widget elementor-widget-text-editor\" data-id=\"05c4e57\" data-element_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 style=\"text-align: center\"><a href=\"https:\/\/www.preform.de\/en\/octaves-and-thirds\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #000000\">Octaves and thirds<\/span><\/a><\/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-6a94c08 elementor-widget elementor-widget-global elementor-global-4229 elementor-widget-spacer\" data-id=\"6a94c08\" data-element_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-229ad42 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"229ad42\" data-element_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-7701618\" data-id=\"7701618\" data-element_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-950c006 elementor-widget elementor-widget-heading\" data-id=\"950c006\" data-element_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<h2 class=\"elementor-heading-title elementor-size-default\">P<\/h2>\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-a89b571 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a89b571\" data-element_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-432ff2c\" data-id=\"432ff2c\" data-element_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-36b5e15 elementor-widget elementor-widget-text-editor\" data-id=\"36b5e15\" data-element_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 style=\"text-align: center\"><a href=\"https:\/\/www.preform.de\/en\/psycho-acoustics\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #000000\">Psycho-acoustics<\/span><\/a><\/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-8d5e9d2 elementor-widget elementor-widget-global elementor-global-4229 elementor-widget-spacer\" data-id=\"8d5e9d2\" data-element_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-0595c5f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"0595c5f\" data-element_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-ec1e7e9\" data-id=\"ec1e7e9\" data-element_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-67035f3 elementor-widget elementor-widget-heading\" data-id=\"67035f3\" data-element_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<h2 class=\"elementor-heading-title elementor-size-default\">R<\/h2>\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-91aee88 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"91aee88\" data-element_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-c4f9967\" data-id=\"c4f9967\" data-element_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-4ea0599 elementor-widget elementor-widget-text-editor\" data-id=\"4ea0599\" data-element_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 style=\"text-align: center\"><span style=\"color: #000000\"><a style=\"color: #000000\" href=\"https:\/\/www.preform.de\/en\/reverberation-time\/\" target=\"_blank\" rel=\"noopener\">Reverberation time (T)<\/a><\/span><\/p><p style=\"text-align: center\"><a href=\"https:\/\/www.preform.de\/en\/room-acoustics-office-acoustics\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #000000\">Room acoustics\/office acoustics<\/span><\/a><\/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-b475f92 elementor-widget elementor-widget-global elementor-global-4229 elementor-widget-spacer\" data-id=\"b475f92\" data-element_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-2d69303 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2d69303\" data-element_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-858d88e\" data-id=\"858d88e\" data-element_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-37c405f elementor-widget elementor-widget-heading\" data-id=\"37c405f\" data-element_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<h2 class=\"elementor-heading-title elementor-size-default\">S<\/h2>\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-f77bbed elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f77bbed\" data-element_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-ad03a66\" data-id=\"ad03a66\" data-element_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-41d9386 elementor-widget elementor-widget-text-editor\" data-id=\"41d9386\" data-element_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 style=\"text-align: center\"><a href=\"https:\/\/www.preform.de\/en\/sound-absorption-classes-sound-absorption-coefficient\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #000000\">Sound absorber classes\/Sound absorption coefficient<\/span><\/a><\/p><p style=\"text-align: center\"><span style=\"color: #000000\"><a style=\"color: #000000\" href=\"https:\/\/www.preform.de\/en\/sound-absorption\/\" target=\"_blank\" rel=\"noopener\">Sound absorption<\/a><\/span><\/p><p style=\"text-align: center\"><span style=\"color: #000000\"><a style=\"color: #000000\" href=\"https:\/\/www.preform.de\/en\/sound-masking\/\" target=\"_blank\" rel=\"noopener\">Sound masking<\/a><\/span><\/p><p style=\"text-align: center\"><span style=\"color: #000000\"><a style=\"color: #000000\" href=\"https:\/\/www.preform.de\/en\/sound-proofing\/\" target=\"_blank\" rel=\"noopener\">Sound proofing<\/a><\/span><\/p><p style=\"text-align: center\"><span style=\"color: #000000\"><a style=\"color: #000000\" href=\"https:\/\/www.preform.de\/en\/sound-reflection\/\" target=\"_blank\" rel=\"noopener\">Sound reflection<\/a><\/span><\/p><p style=\"text-align: center\"><span style=\"color: #000000\"><a style=\"color: #000000\" href=\"https:\/\/www.preform.de\/en\/sound-waves\/\" target=\"_blank\" rel=\"noopener\">Sound waves<\/a><\/span><\/p><p style=\"text-align: center\"><span style=\"color: #000000\"><a style=\"color: #000000\" href=\"https:\/\/www.preform.de\/en\/speech-intelligibility\/\" target=\"_blank\" rel=\"noopener\">Speech intelligibility<\/a><\/span><\/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-f971e21 elementor-widget elementor-widget-global elementor-global-4229 elementor-widget-spacer\" data-id=\"f971e21\" data-element_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-7ac64e3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7ac64e3\" data-element_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-7191942\" data-id=\"7191942\" data-element_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-76f1268 elementor-widget elementor-widget-heading\" data-id=\"76f1268\" data-element_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<h2 class=\"elementor-heading-title elementor-size-default\">V<\/h2>\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-7564e50 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7564e50\" data-element_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-a6f82ae\" data-id=\"a6f82ae\" data-element_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-f18460c elementor-widget elementor-widget-text-editor\" data-id=\"f18460c\" data-element_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 style=\"text-align: center\"><a href=\"https:\/\/www.preform.de\/en\/vdi-2569\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #000000\">VDI 2569: Noise protection and Acoustic Design in Offices<\/span><\/a><\/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-3a9711b elementor-widget elementor-widget-global elementor-global-4229 elementor-widget-spacer\" data-id=\"3a9711b\" data-element_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-08fbb3d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"08fbb3d\" data-element_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-c91063f\" data-id=\"c91063f\" data-element_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-c9c7d41 elementor-widget elementor-widget-global elementor-global-4223 elementor-widget-spacer\" data-id=\"c9c7d41\" data-element_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-d0ff364 elementor-section-stretched elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d0ff364\" data-element_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-c5fc5e5\" data-id=\"c5fc5e5\" data-element_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-0d0f10e elementor-widget elementor-widget-global elementor-global-4223 elementor-widget-spacer\" data-id=\"0d0f10e\" data-element_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-448c687 elementor-widget elementor-widget-text-editor\" data-id=\"448c687\" data-element_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><strong>Would you like to receive a personal quote or further information? <\/strong><strong>Then contact us today.<\/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-b69a8df elementor-hidden-tablet elementor-hidden-phone\" data-id=\"b69a8df\" data-element_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-849f3ae elementor-widget elementor-widget-global elementor-global-4223 elementor-widget-spacer\" data-id=\"849f3ae\" data-element_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-672af2a elementor-widget elementor-widget-text-editor\" data-id=\"672af2a\" data-element_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><br \/><br \/><\/p>\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\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-67bd85d elementor-section-stretched elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"67bd85d\" data-element_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-50 elementor-top-column elementor-element elementor-element-00a1711\" data-id=\"00a1711\" data-element_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 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overview<\/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\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Acoustic glossary In the following, we explain some technical terms related to acoustics. Contact form A Absorbent material Acoustic insulation Anechoic chamber Audible range Auditory perception D Decibel Diffusivity DIN 18041 Direct sound E Equivalent absorption area F Flutter echo [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"parent":10589,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-16344","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.1.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Explanations about acoustics | PREFORM<\/title>\n<meta name=\"description\" content=\"Technical terms from noise protection explained in an understandable way - from sound absorption level to reverberation time and sound masking.\" \/>\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\/en\/acoustic-glossary\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Explanations about acoustics | PREFORM\" \/>\n<meta property=\"og:description\" content=\"Technical terms from noise protection explained in an understandable way - 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