{"id":2366,"date":"2023-06-01T12:05:00","date_gmt":"2023-06-01T10:05:00","guid":{"rendered":"https:\/\/isinac.com\/?p=2366"},"modified":"2025-05-14T12:30:50","modified_gmt":"2025-05-14T10:30:50","slug":"les-differences-dabsorption-acoustique","status":"publish","type":"post","link":"https:\/\/isinac.com\/fr\/nouvelles\/les-differences-dabsorption-acoustique\/","title":{"rendered":"L'absorption acoustique : qu'est-ce que c'est et comment \u00e7a marche ?"},"content":{"rendered":"<p>Il s'agit d'un sujet largement m\u00e9connu qui peut changer votre fa\u00e7on de travailler, de vivre dans votre maison ou de fr\u00e9quenter vos amis pendant votre temps libre. Les <strong>l'absorption acoustique<\/strong>&nbsp;L'absorption acoustique est la grande oubli\u00e9e de l'am\u00e9nagement des espaces et nous faisons aujourd'hui la lumi\u00e8re sur les principaux doutes qui entourent ce secteur. <\/p>\n\n\n\n<p>L'absorption acoustique est d\u00e9finie comme la capacit\u00e9 de tous les mat\u00e9riaux \u00e0 absorber une partie de l'\u00e9nergie des ondes sonores lorsqu'elles les frappent, r\u00e9duisant ainsi la quantit\u00e9 d'\u00e9nergie sonore qui est r\u00e9fl\u00e9chie par le mat\u00e9riau.&nbsp;<\/p>\n\n\n\n<p>Pour vous donner une id\u00e9e de ce fonctionnement, lorsqu'une onde sonore frappe l'une des surfaces d'une pi\u00e8ce, une partie de cette \u00e9nergie sonore est r\u00e9fl\u00e9chie et une autre p\u00e9n\u00e8tre la surface. \u00c0 son tour, cette \u00e9nergie p\u00e9n\u00e9trante est soit absorb\u00e9e par le mat\u00e9riau et convertie en \u00e9nergie thermique, soit transmise \u00e0 d'autres pi\u00e8ces, soit r\u00e9fl\u00e9chie. <\/p>\n\n\n\n<p>Le niveau d'\u00e9nergie convertie en chaleur, principalement dans les vibrations, d\u00e9pend des propri\u00e9t\u00e9s d'absorption du son du mat\u00e9riau. En ce sens, tout comme il est important de conna\u00eetre les propri\u00e9t\u00e9s acoustiques des mat\u00e9riaux, il est \u00e9galement important de conna\u00eetre les propri\u00e9t\u00e9s d'absorption du son du mat\u00e9riau.&nbsp;<a href=\"https:\/\/selectra.es\/energia\/tramites\/calcular-consumo-electrico\" target=\"_blank\" rel=\"noreferrer noopener sponsored nofollow\">le calcul de la consommation d'\u00e9lectricit\u00e9<\/a>&nbsp;lors de l'utilisation de dispositifs con\u00e7us pour am\u00e9liorer l'absorption du son dans un espace.<\/p>\n\n\n\n<p>En r\u00e9sum\u00e9, plus la capacit\u00e9 d'absorption des mat\u00e9riaux pr\u00e9sents dans l'espace est grande, plus l'absorption du son est importante et plus la propagation du son dans l'espace est r\u00e9duite.<\/p>\n\n\n\n<p class=\"translation-block\">Les propri\u00e9t\u00e9s d'absorption acoustique d'un mat\u00e9riau sont exprim\u00e9es par le coefficient d'absorption acoustique, <strong>\u03b1 (alpha)<\/strong>, en fonction de la fr\u00e9quence. \u03b1 varie de 0 \/ 0% (r\u00e9flexion totale) \u00e0 1 \/ 100% (absorption totale).  On peut dire que :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>L'absorption augmente avec la fr\u00e9quence.&nbsp;<\/li>\n\n\n\n<li>Pour les hautes fr\u00e9quences, l'absorption ne d\u00e9pend pas de l'\u00e9paisseur du mat\u00e9riau.<\/li>\n\n\n\n<li>Pour les basses fr\u00e9quences, l'absorption augmente avec l'\u00e9paisseur.&nbsp;<\/li>\n\n\n\n<li>Diff\u00e9rentes densit\u00e9s de mat\u00e9riaux facilitent l'absorption \u00e0 diff\u00e9rentes fr\u00e9quences. Le coefficient d'absorption d'un mat\u00e9riau variant avec la fr\u00e9quence, il est g\u00e9n\u00e9ralement sp\u00e9cifi\u00e9 pour des fr\u00e9quences de 125, 250, 500, 1000, 1000, 2000 et 4000 Hz. L'effet de bord ou effet de diffraction est produit par la diffraction de l'onde sur les bords du mat\u00e9riau \u00e0 mesurer, de sorte que dans ce cas, l'absorption acoustique peut \u00eatre sup\u00e9rieure \u00e0 1.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Quelle est la diff\u00e9rence entre l'isolation acoustique et l'absorption acoustique ?<\/h2>\n\n\n\n<p>Par&nbsp;<strong>isolation acoustique<\/strong>&nbsp;nous entendons la capacit\u00e9 de limiter la transmission du son entre deux environnements. Son principal objectif est d'emp\u00eacher le son de se propager d'un endroit \u00e0 l'autre, soit pour pr\u00e9server l'intimit\u00e9, soit pour emp\u00eacher l'entr\u00e9e de bruits ind\u00e9sirables. Pour ce faire, on utilise des mat\u00e9riaux et des techniques qui bloquent ou r\u00e9duisent la transmission du son, tels que des murs et des plafonds \u00e0 haut coefficient d'isolation, des fen\u00eatres \u00e0 double vitrage et des portes \u00e0 joints \u00e9tanches \u00e0 l'air.<\/p>\n\n\n\n<p class=\"translation-block\">Quant \u00e0 l'<strong>absorption acoustique<\/strong>, elle fait r\u00e9f\u00e9rence \u00e0 l'am\u00e9lioration du confort acoustique dans un espace donn\u00e9. L'objectif principal de l'absorption acoustique est de contr\u00f4ler la r\u00e9verb\u00e9ration, qui est le ph\u00e9nom\u00e8ne de prolongation et de m\u00e9lange des \u00e9chos sonores dans un environnement clos. En utilisant des mat\u00e9riaux d'absorption acoustique, tels que les <strong>panneaux muraux acoustiques<\/strong>, la quantit\u00e9 de son r\u00e9fl\u00e9chi par les surfaces est r\u00e9duite, ce qui diminue la r\u00e9verb\u00e9ration et am\u00e9liore la clart\u00e9 du son dans la pi\u00e8ce.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Comment savoir quels panneaux absorbants acoustiques correspondent \u00e0 ce que nous recherchons ?<\/h2>\n\n\n\n<p class=\"translation-block\">Chez ISINAC, nous avons plusieurs options en termes de panneaux acoustiques. Nous avons des <strong>solutions pour le secteur <a href=\"https:\/\/isinac.com\/fr\/categorie-de-produits\/gamme-professionnelle\/\" target=\"_self\">professionnel<\/a>, une gamme <a href=\"https:\/\/isinac.com\/fr\/categorie-de-produits\/gamme-excellence\/\" target=\"_self\">excellence<\/a> con\u00e7ue pour les environnements exigeants<\/strong>, <strong><a href=\"https:\/\/isinac.com\/fr\/categorie-de-produits\/bureau\/\" target=\"_blank\" rel=\"noreferrer noopener\">solutions mobiles<\/a><\/strong> pour les bureaux ou <strong><a href=\"https:\/\/isinac.com\/fr\/installations\/les-rideaux-ilucs-arte-reduisent-le-bruit-et-augmentent-le-confort\/\" target=\"_self\">rideaux acoustiques<\/a>, entre autres.<\/p>\n\n\n\n<p>L'exemple des rideaux illustre la polyvalence des produits ISINAC. Il s'agit de produits sp\u00e9cialement con\u00e7us \u00e0 partir de mat\u00e9riaux qui ont non seulement une absorption de 100% (Alpha sabine 1 et NRC 1), mais aussi une isolation acoustique de 9 d\u00e9cibels. Il en r\u00e9sulte une augmentation significative du confort acoustique, le tout avec des mat\u00e9riaux respectueux de l'environnement.<\/p>\n\n\n\n<p>Bienvenue dans le confort acoustique !<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"529\" src=\"https:\/\/isinac.com\/wp-content\/uploads\/2025\/03\/b77044f5604d9cb0245d99c77ec653b9-1024x529.png\" alt=\"l&#039;absorption acoustique\" class=\"wp-image-2367\" style=\"width:741px;height:auto\" srcset=\"https:\/\/isinac.com\/wp-content\/uploads\/2025\/03\/b77044f5604d9cb0245d99c77ec653b9-1024x529.png 1024w, https:\/\/isinac.com\/wp-content\/uploads\/2025\/03\/b77044f5604d9cb0245d99c77ec653b9-300x155.png 300w, https:\/\/isinac.com\/wp-content\/uploads\/2025\/03\/b77044f5604d9cb0245d99c77ec653b9-768x396.png 768w, https:\/\/isinac.com\/wp-content\/uploads\/2025\/03\/b77044f5604d9cb0245d99c77ec653b9.png 1112w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Es un tema del que existe un gran desconocimiento y que puede cambiar la forma en la que trabajas, habitas tu casa o te relacionas con tus amigos en tus momentos de ocio. La absorci\u00f3n ac\u00fastica&nbsp;o absorci\u00f3n del sonido es el gran olvidado en la planificaci\u00f3n de los espacios y hoy arrojamos luz sobre las [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":2367,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[51],"class_list":["post-2366","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-noticias","tag-absorcionacustica-2"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Absorci\u00f3n ac\u00fastica: \u00bfqu\u00e9 es y como funciona? - ISINAC<\/title>\n<meta name=\"description\" content=\"La absorci\u00f3n ac\u00fastica\u00a0o absorci\u00f3n del sonido es el gran olvidado en la planificaci\u00f3n de los espacios. 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