<?xml version="1.0"?>
<oembed><version>1.0</version><provider_name>Avant 4 degr&#xE9;s</provider_name><provider_url>https://avant4degres.fr/en</provider_url><author_name>avant4degres.fr</author_name><author_url>https://avant4degres.fr/en/author/avant4degres-fr/</author_url><title>Isolation acoustique #3 - Avant 4 degr&#xE9;s</title><type>rich</type><width>600</width><height>338</height><html>&lt;blockquote class="wp-embedded-content" data-secret="aNl1g00Pve"&gt;&lt;a href="https://avant4degres.fr/en/isolation-acoustique-3/"&gt;Isolation acoustique #3&lt;/a&gt;&lt;/blockquote&gt;&lt;iframe sandbox="allow-scripts" security="restricted" src="https://avant4degres.fr/en/isolation-acoustique-3/embed/#?secret=aNl1g00Pve" width="600" height="338" title="&#x201C;Isolation acoustique #3&#x201D; &#x2014; Avant 4 degr&#xE9;s" data-secret="aNl1g00Pve" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"&gt;&lt;/iframe&gt;&lt;script&gt;
/*! This file is auto-generated */
!function(d,l){"use strict";l.querySelector&amp;&amp;d.addEventListener&amp;&amp;"undefined"!=typeof URL&amp;&amp;(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&amp;&amp;!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i&lt;o.length;i++)o[i].style.display="none";for(i=0;i&lt;a.length;i++)s=a[i],e.source===s.contentWindow&amp;&amp;(s.removeAttribute("style"),"height"===t.message?(1e3&lt;(r=parseInt(t.value,10))?r=1e3:~~r&lt;200&amp;&amp;(r=200),s.height=r):"link"===t.message&amp;&amp;(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&amp;&amp;n.host===r.host&amp;&amp;l.activeElement===s&amp;&amp;(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r&lt;s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document);
&lt;/script&gt;</html><description>Isolation acoustique #3 25 novembre 2025 L&#x2019;une des cl&#xE9;s de l&#x2019;isolation acoustique, c&#x2019;est la masse. Lorsque l&#x2019;on double l&#x2019;&#xE9;paisseur d&#x2019;une paroi simple, on obtient un gain d&#x2019;affaiblissement de 6 dB (c&#x2019;est la loi de masse). On va donc privil&#xE9;gier des mat&#xE9;riaux lourds. D&#x2019;apr&#xE8;s Juguin &amp; Coulon (2023), l&#x2019;indice d&#x2019;affaiblissement acoustique d&#x2019;un mur en briques de [&hellip;]</description><thumbnail_url>https://avant4degres.fr/wp-content/uploads/2025/11/Acoustique32.png</thumbnail_url><thumbnail_width>1185</thumbnail_width><thumbnail_height>1185</thumbnail_height></oembed>
