{"version":"1.0","provider_name":"CETEST USA","provider_url":"https:\/\/www.cetestgroup.com\/us","author_name":"cetest","author_url":"https:\/\/www.cetestgroup.com\/us\/author\/cetest\/","title":"Characterization of noise transmission through doors - CETEST USA","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"lkXWTqnebR\"><a href=\"https:\/\/www.cetestgroup.com\/us\/case-study\/characterization-of-noise-transmission-through-doors\/\">Characterization of noise transmission through doors<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.cetestgroup.com\/us\/case-study\/characterization-of-noise-transmission-through-doors\/embed\/#?secret=lkXWTqnebR\" width=\"600\" height=\"338\" title=\"&#8220;Characterization of noise transmission through doors&#8221; &#8212; CETEST USA\" data-secret=\"lkXWTqnebR\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^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<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(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<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);\n\/\/# sourceURL=https:\/\/www.cetestgroup.com\/us\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>\n","thumbnail_url":"https:\/\/www.cetestgroup.com\/us\/wp-content\/uploads\/sites\/2\/2017\/12\/cetest-case-study4-intro.jpg","thumbnail_width":1,"thumbnail_height":1,"description":"PROBLEM: Interior noise levels within the train were detected to be too high. Noise transmission through doors was observed to be excessively high at points where the doors were not fully sound proofed. ACTIONS: Absorbent material and acoustic barriers were added to the doors to reduce the level of noise ..."}