<style id="elementor-post-7767">.elementor-7767 .elementor-element.elementor-element-474ff1f{--display:flex;--flex-direction:row;--container-widget-width:initial;--container-widget-height:100%;--container-widget-flex-grow:1;--container-widget-align-self:stretch;--flex-wrap-mobile:wrap;--gap:0px 0px;--row-gap:0px;--column-gap:0px;--margin-top:40px;--margin-bottom:0px;--margin-left:0px;--margin-right:0px;}.elementor-7767 .elementor-element.elementor-element-3a71aef{--display:flex;--flex-direction:column;--container-widget-width:100%;--container-widget-height:initial;--container-widget-flex-grow:0;--container-widget-align-self:initial;--flex-wrap-mobile:wrap;}.elementor-7767 .elementor-element.elementor-element-31fa12c2 .elementor-button{background-color:#73AFB7;text-transform:none;fill:#FFFFFF;color:#FFFFFF;border-style:solid;border-width:2px 2px 2px 2px;border-color:#73AFB7;border-radius:28px 28px 28px 28px;padding:10px 20px 10px 20px;}.elementor-7767 .elementor-element.elementor-element-31fa12c2 .elementor-button:hover, .elementor-7767 .elementor-element.elementor-element-31fa12c2 .elementor-button:focus{background-color:#02010100;color:#73AFB7;}.elementor-7767 .elementor-element.elementor-element-31fa12c2 .elementor-button:hover svg, .elementor-7767 .elementor-element.elementor-element-31fa12c2 .elementor-button:focus svg{fill:#73AFB7;}.elementor-7767 .elementor-element.elementor-element-e4e91a8{--display:flex;--flex-direction:column;--container-widget-width:100%;--container-widget-height:initial;--container-widget-flex-grow:0;--container-widget-align-self:initial;--flex-wrap-mobile:wrap;--margin-top:100px;--margin-bottom:0px;--margin-left:0px;--margin-right:0px;--padding-top:60px;--padding-bottom:60px;--padding-left:20px;--padding-right:20px;}.elementor-7767 .elementor-element.elementor-element-e4e91a8:not(.elementor-motion-effects-element-type-background), .elementor-7767 .elementor-element.elementor-element-e4e91a8 > .elementor-motion-effects-container > .elementor-motion-effects-layer{background-color:#73AFB7;}.elementor-7767 .elementor-element.elementor-element-67502b2 .elementor-heading-title{color:#FFFFFF;}@media(min-width:768px){.elementor-7767 .elementor-element.elementor-element-474ff1f{--content-width:1400px;}.elementor-7767 .elementor-element.elementor-element-e4e91a8{--content-width:1400px;}}</style>{"id":7767,"date":"2026-10-01T16:21:35","date_gmt":"2026-10-01T14:21:35","guid":{"rendered":"https:\/\/formdesign.be\/abc-de-l-acoustique\/"},"modified":"2026-10-01T16:21:35","modified_gmt":"2026-10-01T14:21:35","slug":"abc-de-l-acoustique","status":"publish","type":"post","link":"https:\/\/formdesign.be\/fr\/abc-de-l-acoustique\/","title":{"rendered":"L&rsquo;ABC de l&rsquo;acoustique expliqu\u00e9 : absorber, isoler et masquer"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"7767\" class=\"elementor elementor-7767 elementor-5819\" wpc-filter-elementor-widget=\"1\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-474ff1f e-flex e-con-boxed e-con e-parent\" data-id=\"474ff1f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-3a71aef e-con-full e-flex e-con e-child\" data-id=\"3a71aef\" data-element_type=\"container\" data-e-type=\"container\" id=\"inhoud\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0a1ae8d elementor-widget elementor-widget-text-editor\" data-id=\"0a1ae8d\" data-element_type=\"widget\" data-e-type=\"widget\" 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<h1>L&rsquo;ABC de l&rsquo;acoustique expliqu\u00e9 : absorber, isoler et masquer<\/h1><p>Une bonne acoustique a plus d&rsquo;influence qu&rsquo;on ne le pense : sur l&rsquo;intelligibilit\u00e9, le calme, la confidentialit\u00e9 et m\u00eame la productivit\u00e9. Pourtant, peu de gens savent comment l&rsquo;acoustique fonctionne r\u00e9ellement. Les bases sont \u00e9tonnamment simples. L&rsquo;acoustique repose en effet sur trois principes fondamentaux : absorber, bloquer et camoufler. Ensemble, ils forment l&rsquo;ABC de l&rsquo;acoustique, indispensable pour tout bureau, b\u00e2timent scolaire ou environnement industriel.<\/p><h3>A = Absorber : capter le son et r\u00e9duire la r\u00e9verb\u00e9ration<\/h3><p>Lorsque les ondes sonores heurtent des surfaces dures, elles sont r\u00e9fl\u00e9chies. Cela cr\u00e9e de la r\u00e9verb\u00e9ration, cet \u00e9cho qui rend les pi\u00e8ces bruyantes et fatigantes. L&rsquo;absorption consiste \u00e0 capter ces ondes sonores. Des mat\u00e9riaux tels que les <a href=\"https:\/\/formdesign.be\/fr\/solutions-acoustiques\/panneaux-acoustiques\/\">panneaux acoustiques<\/a>, les baffles acoustiques ou les rev\u00eatements muraux absorbent le son et le transforment en une infime quantit\u00e9 d&rsquo;\u00e9nergie thermique.<\/p><p>Une bonne absorption r\u00e9duit la valeur RT60 (le temps n\u00e9cessaire pour que le son diminue de 60 dB). Dans les bureaux, on vise un RT60 de 0,5 \u00e0 0,8 seconde, conform\u00e9ment \u00e0 la norme belge NBN S01.<\/p><p>Applications :<\/p><ul><li>Panneaux muraux acoustiques dans les salles de r\u00e9union.<\/li><li>Panneaux de plafond dans les zones de bureaux en open space.<\/li><li>Surfaces textiles ou perfor\u00e9es dans les salles de classe et les auditoriums.<\/li><\/ul><h3>B = Bloquer ou isoler : stopper la transmission du son<\/h3><p>Parfois, le son ne doit pas \u00eatre absorb\u00e9, mais arr\u00eat\u00e9. Pensez aux murs entre les salles de r\u00e9union ou aux parois autour des installations HVAC. L&rsquo;isolation, ou le blocage, emp\u00eache le son de se propager \u00e0 travers les structures ou l&rsquo;air. C&rsquo;est ici la masse qui compte : des mat\u00e9riaux plus lourds et plus denses, comme les plaques de fibres-gypse, les panneaux sandwich ou les portes acoustiques, limitent la transmission du son.<\/p><p>Applications :<\/p><ul><li>Doubles cloisons entre bureaux ou salles.<\/li><li>Caissons acoustiques pour installations techniques.<\/li><li>Portes et vitrages acoustiques dans les salles de r\u00e9union.<\/li><\/ul><p>Form Design applique \u00e0 chaque fois une combinaison de masse, d&rsquo;\u00e9tanch\u00e9it\u00e9 \u00e0 l&rsquo;air et de d\u00e9solidarisation afin de r\u00e9duire au minimum la transmission.<\/p><figure id=\"attachment_5837\" aria-describedby=\"caption-attachment-5837\" style=\"width: 1920px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/formdesign.be\/fr\/nos-references-et-realisations\/biove-inovet\/\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-5837 size-full\" src=\"https:\/\/formdesign.be\/wp-content\/uploads\/2025\/11\/ABC-van-akoestiek.jpg\" alt=\"\" width=\"1920\" height=\"1080\" srcset=\"https:\/\/formdesign.be\/wp-content\/uploads\/2025\/11\/ABC-van-akoestiek.jpg 1920w, https:\/\/formdesign.be\/wp-content\/uploads\/2025\/11\/ABC-van-akoestiek-300x169.jpg 300w, https:\/\/formdesign.be\/wp-content\/uploads\/2025\/11\/ABC-van-akoestiek-1024x576.jpg 1024w, https:\/\/formdesign.be\/wp-content\/uploads\/2025\/11\/ABC-van-akoestiek-768x432.jpg 768w, https:\/\/formdesign.be\/wp-content\/uploads\/2025\/11\/ABC-van-akoestiek-1536x864.jpg 1536w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/a><figcaption id=\"caption-attachment-5837\" class=\"wp-caption-text\">R\u00e9alisation Biov\u00e9 Inovet &#8211; Formdesign.be<\/figcaption><\/figure><h3>C = Camoufler ou masquer : utiliser intelligemment le bruit de fond<\/h3><p>Il est parfois impossible d&rsquo;\u00e9liminer compl\u00e8tement un bruit g\u00eanant, mais on peut le masquer. C&rsquo;est ce qu&rsquo;on appelle le <a href=\"https:\/\/formdesign.be\/fr\/solutions-acoustiques\/masquage-sonore\/\">masquage sonore<\/a>, ou camouflage : on ajoute un bruit de fond doux et constant qui neutralise les pics sonores g\u00eanants.<\/p><p>Dans les grands bureaux en open space, cela renforce la confidentialit\u00e9 et r\u00e9duit le stress. Form Design utilise souvent ce principe en combinaison avec des panneaux absorbants et un am\u00e9nagement intelligent, pour un \u00e9quilibre optimal entre calme et dynamisme.<\/p><h3>Pourquoi cette combinaison fonctionne<\/h3><p>Une pi\u00e8ce trait\u00e9e uniquement par absorption peut sembler acoustiquement \u00ab morte \u00bb. Une pi\u00e8ce uniquement isol\u00e9e peut, elle, continuer \u00e0 r\u00e9sonner. Le bon m\u00e9lange d&rsquo;absorption, de blocage et de camouflage cr\u00e9e une v\u00e9ritable harmonie acoustique. C&rsquo;est pr\u00e9cis\u00e9ment l\u00e0 que Form Design excelle : r\u00e9aliser une solution technique qui apporte aussi une plus-value esth\u00e9tique.<\/p><h3>Les conseils d&rsquo;experts de Form Design<\/h3><p>Avec plus de 40 ans d&rsquo;exp\u00e9rience dans les solutions acoustiques, Form Design vous accompagne dans chaque projet, du diagnostic \u00e0 l&rsquo;ex\u00e9cution. Vous souhaitez \u00e9valuer la qualit\u00e9 acoustique de votre espace ?<\/p><p><a href=\"https:\/\/formdesign.be\/fr\/contact\/\">Demandez votre audit acoustique<\/a>.<\/p><p><a href=\"https:\/\/formdesign.be\/fr\/solutions-acoustiques\/\">D\u00e9couvrez nos solutions acoustiques<\/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-31fa12c2 elementor-widget elementor-widget-button\" data-id=\"31fa12c2\" data-element_type=\"widget\" data-e-type=\"widget\" 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-sm\" href=\"https:\/\/formdesign.be\/fr\/demander-un-devis\/?reden=Demander%20un%20devis\">\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\">Demander un devis<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e4e91a8 e-flex e-con-boxed e-con e-parent\" data-id=\"e4e91a8\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-67502b2 elementor-widget elementor-widget-heading\" data-id=\"67502b2\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"inhoud\" 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\">Quelques questions fr\u00e9quentes<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3181e0d elementor-widget elementor-widget-shortcode\" data-id=\"3181e0d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">        <style>\r\n        \/* Container *\/\r\n        .faq-cards{\r\n          width:100%;\r\n          display:grid;\r\n          gap:16px;\r\n          interpolate-size:allow-keywords; \/* maakt animeren naar auto-hoogte mogelijk *\/\r\n        }\r\n        \/* Kaarten (nu <details>) *\/\r\n        .faq-card{\r\n          background:#fff;\r\n          border:1px solid #e5e7eb;\r\n          border-radius:5px;\r\n          overflow:hidden;\r\n        }\r\n        \/* Klikbare kop *\/\r\n        .faq-card-summary{\r\n          list-style:none;\r\n          cursor:pointer;\r\n          display:flex;\r\n          align-items:center;\r\n          justify-content:space-between;\r\n          gap:12px;\r\n          padding:16px 20px;\r\n          -webkit-user-select:none;\r\n          user-select:none;\r\n        }\r\n        .faq-card-summary::-webkit-details-marker{ display:none; } \/* default driehoekje weg (Safari) *\/\r\n        .faq-card-summary::marker{ content:\"\"; }                  \/* default driehoekje weg *\/\r\n        \/* Titel *\/\r\n        .faq-card-title{\r\n          margin:0;\r\n          font-size:1.1rem;\r\n          line-height:1.3;\r\n          color:#0f2a44;\r\n        }\r\n        \/* Icoon (chevron) *\/\r\n        .faq-card-icon{\r\n          flex:0 0 auto;\r\n          width:20px; height:20px;\r\n          color:#0f2a44;\r\n          transition:transform .2s ease;\r\n        }\r\n        .faq-card[open] .faq-card-icon{ transform:rotate(180deg); }\r\n        \/* Open\/sluit animatie (CSS-only, degradeert naar direct openklappen) *\/\r\n        .faq-card::details-content{\r\n          block-size:0;\r\n          overflow:clip;\r\n          transition:block-size .28s ease, content-visibility .28s allow-discrete;\r\n        }\r\n        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document.querySelectorAll('.faq-cards').forEach(function(group){\r\n              var items = group.querySelectorAll('details.faq-card');\r\n              items.forEach(function(d){\r\n                d.addEventListener('toggle', function(){\r\n                  if (d.open){\r\n                    items.forEach(function(o){ if (o !== d) o.open = false; });\r\n                  }\r\n                });\r\n              });\r\n            });\r\n          }\r\n          if (document.readyState !== 'loading'){ init(); }\r\n          else { document.addEventListener('DOMContentLoaded', init); }\r\n        })();\r\n        <\/script>\r\n        <div class=\"faq-cards\">        <details class=\"faq-card\" open>\r\n            <summary class=\"faq-card-summary\">\r\n                <h4 class=\"faq-card-title\">Quelle est la diff\u00e9rence entre absorption et isolation ?<\/h4>\r\n                <svg class=\"faq-card-icon\" viewBox=\"0 0 24 24\" fill=\"none\" aria-hidden=\"true\">\r\n                    <path d=\"M6 9l6 6 6-6\" stroke=\"currentColor\" stroke-width=\"2\"\r\n                          stroke-linecap=\"round\" stroke-linejoin=\"round\"\/>\r\n                <\/svg>\r\n            <\/summary>\r\n                            <hr class=\"faq-card-sep\" \/>\r\n                        <div class=\"faq-card-body\">\r\n                <p>L&rsquo;absorption capte le son \u00e0 l&rsquo;int\u00e9rieur d&rsquo;une pi\u00e8ce, l&rsquo;isolation phonique l&#8217;emp\u00eache de passer d&rsquo;une pi\u00e8ce \u00e0 l&rsquo;autre.<\/p>\n            <\/div>\r\n        <\/details>\r\n                <details class=\"faq-card\">\r\n            <summary class=\"faq-card-summary\">\r\n                <h4 class=\"faq-card-title\">Que signifie RT60 ?<\/h4>\r\n                <svg class=\"faq-card-icon\" viewBox=\"0 0 24 24\" fill=\"none\" aria-hidden=\"true\">\r\n                    <path d=\"M6 9l6 6 6-6\" stroke=\"currentColor\" stroke-width=\"2\"\r\n                          stroke-linecap=\"round\" stroke-linejoin=\"round\"\/>\r\n                <\/svg>\r\n            <\/summary>\r\n                            <hr class=\"faq-card-sep\" \/>\r\n                        <div class=\"faq-card-body\">\r\n                <p>Le RT60 est le temps n\u00e9cessaire pour que le son diminue de 60 d\u00e9cibels : c&rsquo;est donc une mesure de la r\u00e9verb\u00e9ration.<\/p>\n            <\/div>\r\n        <\/details>\r\n                <details class=\"faq-card\">\r\n            <summary class=\"faq-card-summary\">\r\n                <h4 class=\"faq-card-title\">Comment r\u00e9duire la r\u00e9verb\u00e9ration dans mon bureau ?<\/h4>\r\n                <svg class=\"faq-card-icon\" viewBox=\"0 0 24 24\" fill=\"none\" aria-hidden=\"true\">\r\n                    <path d=\"M6 9l6 6 6-6\" stroke=\"currentColor\" stroke-width=\"2\"\r\n                          stroke-linecap=\"round\" stroke-linejoin=\"round\"\/>\r\n                <\/svg>\r\n            <\/summary>\r\n                            <hr class=\"faq-card-sep\" \/>\r\n                        <div class=\"faq-card-body\">\r\n                <p>En ajoutant des mat\u00e9riaux absorbants, comme des panneaux muraux ou des panneaux de plafond.<\/p>\n            <\/div>\r\n        <\/details>\r\n                <details class=\"faq-card\">\r\n            <summary class=\"faq-card-summary\">\r\n                <h4 class=\"faq-card-title\">Qu&rsquo;est-ce que le masquage sonore exactement ?<\/h4>\r\n                <svg class=\"faq-card-icon\" viewBox=\"0 0 24 24\" fill=\"none\" aria-hidden=\"true\">\r\n                    <path d=\"M6 9l6 6 6-6\" stroke=\"currentColor\" stroke-width=\"2\"\r\n                          stroke-linecap=\"round\" stroke-linejoin=\"round\"\/>\r\n                <\/svg>\r\n            <\/summary>\r\n                            <hr class=\"faq-card-sep\" \/>\r\n                        <div class=\"faq-card-body\">\r\n                <p>Une technique qui consiste \u00e0 ajouter un bruit de fond pour masquer les pics sonores g\u00eanants.<\/p>\n            <\/div>\r\n        <\/details>\r\n                <details class=\"faq-card\">\r\n            <summary class=\"faq-card-summary\">\r\n                <h4 class=\"faq-card-title\">L&rsquo;am\u00e9lioration acoustique fonctionne-t-elle aussi dans les b\u00e2timents existants ?<\/h4>\r\n                <svg class=\"faq-card-icon\" viewBox=\"0 0 24 24\" fill=\"none\" aria-hidden=\"true\">\r\n                    <path d=\"M6 9l6 6 6-6\" stroke=\"currentColor\" stroke-width=\"2\"\r\n                          stroke-linecap=\"round\" stroke-linejoin=\"round\"\/>\r\n                <\/svg>\r\n            <\/summary>\r\n                            <hr class=\"faq-card-sep\" \/>\r\n                        <div class=\"faq-card-body\">\r\n                <p>Oui, Form Design propose des solutions pour les bureaux neufs comme pour les bureaux existants.<\/p>\n            <\/div>\r\n        <\/details>\r\n        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Pourtant, peu de gens savent comment l&rsquo;acoustique fonctionne r\u00e9ellement. Les bases sont \u00e9tonnamment simples. L&rsquo;acoustique repose en effet sur trois principes fondamentaux : absorber, bloquer [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5837,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[1],"tags":[],"class_list":["post-7767","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ongecategoriseerd"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ABC de l&#039;acoustique : absorber, isoler, masquer | Form Design<\/title>\n<meta name=\"description\" content=\"Les trois piliers de l&#039;acoustique : absorber, isoler et masquer. 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