{"id":4315,"date":"2021-12-06T09:53:01","date_gmt":"2021-12-06T08:53:01","guid":{"rendered":"https:\/\/tfi-aachen.de\/testing\/bauakustiklabor-schallabsorption-im-hallraum\/"},"modified":"2025-06-03T18:00:00","modified_gmt":"2025-06-03T16:00:00","slug":"building-acoustics-laboratory-sound-absorption-in-a-reverberation-room-en-iso-354-astm-c423","status":"publish","type":"page","link":"https:\/\/tfi-aachen.de\/en\/testing\/building-acoustics-laboratory-sound-absorption-in-a-reverberation-room-en-iso-354-astm-c423\/","title":{"rendered":"Building Acoustics Laboratory: Sound Absorption in a Reverberation Room EN ISO 354 \/ ASTM C423"},"content":{"rendered":"\n\n<div id=\"text-with-image-block_61aa12187fd96\" class=\"block text-with-image alignfull icon-above-text no-link\">\n    <div class=\"container\">\n        <div class=\"wrapper bg-dark-gray\">\n            <div class=\"image-wrapper\">\n\t\t\t\t\t\t\t\t            <\/div>\n            <div class=\"text-wrapper\">\n\t\t\t\t                    <div class=\"icon-wrapper\">\n\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1\" height=\"1\" src=\"https:\/\/tfi-aachen.de\/wp-content\/uploads\/2021\/04\/icon_pruefung.svg\" class=\"icon\" alt=\"\" \/>                    <\/div>\n\t\t\t\t                <h1 class=\"title\">Building Acoustics Laboratory: Sound Absorption in a Reverberation Room EN ISO 354 \/ ASTM C423<\/h1>\n                <div class=\"text\">\n\t\t\t\t\t                <\/div>\n\t\t\t\t            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n\n\n\n<div id=\"intro-block_61b1dad730947\" class=\"block intro alignfull bg-light-blue\">\n    <div class=\"container\">\n        <div class=\"text\">\n\t\t\t<p style=\"text-align: center;\"><strong>In the reverberation room we test how much sound a test object can absorb. The sound absorption capacity describes the ratio of sound-absorbing properties to the reflecting properties of the test objects. Indoor building products can reduce noise due to their sound-absorbing properties.<\/strong><\/p>\n        <\/div>\n    <\/div>\n<\/div>\n\n\n<div class=\"wp-bootstrap-blocks-row row\">\n\t\n\n<div class=\"col-12 col-sm-12 col-lg-2 col-xl-2\">\n\t\t\t\t<\/div>\n\n\n\n<div class=\"col-12 col-sm-12 col-md-6 col-lg-4 col-xl-4\">\n\t\t\t\n\n\n<div id=\"text-block_61b1db0d30948\" class=\"block text alignfull bg-white\">\n    <div class=\"container\">\n        \n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1110\" height=\"624\" src=\"https:\/\/tfi-aachen.de\/wp-content\/uploads\/2021\/12\/tfi_schallabsorption_2-1110x624.jpg\" alt=\"\" class=\"wp-image-2173\" srcset=\"https:\/\/tfi-aachen.de\/wp-content\/uploads\/2021\/12\/tfi_schallabsorption_2-1110x624.jpg 1110w, https:\/\/tfi-aachen.de\/wp-content\/uploads\/2021\/12\/tfi_schallabsorption_2-533x300.jpg 533w, https:\/\/tfi-aachen.de\/wp-content\/uploads\/2021\/12\/tfi_schallabsorption_2-768x432.jpg 768w, https:\/\/tfi-aachen.de\/wp-content\/uploads\/2021\/12\/tfi_schallabsorption_2-1536x864.jpg 1536w, https:\/\/tfi-aachen.de\/wp-content\/uploads\/2021\/12\/tfi_schallabsorption_2.jpg 1920w\" sizes=\"auto, (max-width: 1110px) 100vw, 1110px\" \/><figcaption class=\"wp-element-caption\">TFI reverberation chamber<\/figcaption><\/figure>\n\n\n    <\/div>\n<\/div>\n\n\t<\/div>\n\n\n\n<div class=\"col-12 col-sm-12 col-md-6 col-lg-4 col-xl-4\">\n\t\t\t\n\n\n<div id=\"text-block_61b1db6f30949\" class=\"block text alignfull bg-white\">\n    <div class=\"container\">\n        \n\n<h3 class=\"wp-block-heading alignwide\" id=\"geeignete-produktarten\" style=\"line-height:1.1\">Testing properties<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>testing according to DIN EN ISO 354<\/li>\n\n\n\n<li>automated test procedure<\/li>\n\n\n\n<li>access to the reverberation chamber possible by truck<\/li>\n\n\n\n<li>crane device available<\/li>\n<\/ul>\n\n\n    <\/div>\n<\/div>\n\n\t<\/div>\n\n\n\n<div class=\"col-12 col-sm-12 col-lg-2 col-xl-2\">\n\t\t\t\t<\/div>\n\n<\/div>\n\n\n<div class=\"wp-bootstrap-blocks-row row\">\n\t\n\n<div class=\"col-12 col-sm-12 col-lg-2 col-xl-2\">\n\t\t\t\t<\/div>\n\n\n\n<div class=\"col-12 col-sm-12 col-md-6 col-lg-4 col-xl-4\">\n\t\t\t\n\n\n<div id=\"text-block_61b1dbd93094a\" class=\"block text alignfull bg-white\">\n    <div class=\"container\">\n        \n\n<h3 class=\"wp-block-heading alignwide\" id=\"geeignete-produktarten\" style=\"line-height:1.1\">Suitable product types:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>decoration fabrics<\/li>\n\n\n\n<li>interior sun protection<\/li>\n\n\n\n<li>resilient floor coverings<\/li>\n\n\n\n<li>home textiles<\/li>\n\n\n\n<li>multilayer modular floor coverings (MMF)<\/li>\n\n\n\n<li>laminate floor coverings<\/li>\n\n\n\n<li>upholstery fabrics<\/li>\n\n\n\n<li>parquet and wood floor coverings<\/li>\n\n\n\n<li>textile floor coverings<\/li>\n\n\n\n<li>laying materials and underlays<\/li>\n\n\n\n<li>wall and ceiling coverings<\/li>\n\n\n\n<li>sports floors<\/li>\n\n\n\n<li>components<\/li>\n\n\n\n<li>care and cleaning systems<\/li>\n<\/ul>\n\n\n    <\/div>\n<\/div>\n\n\t<\/div>\n\n\n\n<div class=\"col-12 col-sm-12 col-md-6 col-lg-4 col-xl-4\">\n\t\t\t\n\n\n<div id=\"text-block_61b1dc163094b\" class=\"block text alignfull bg-white\">\n    <div class=\"container\">\n        \n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"869\" height=\"1024\" src=\"https:\/\/tfi-aachen.de\/wp-content\/uploads\/2021\/12\/tfi_schallabsorption_1-869x1024.jpg\" alt=\"\" class=\"wp-image-2170\" srcset=\"https:\/\/tfi-aachen.de\/wp-content\/uploads\/2021\/12\/tfi_schallabsorption_1-869x1024.jpg 869w, https:\/\/tfi-aachen.de\/wp-content\/uploads\/2021\/12\/tfi_schallabsorption_1-255x300.jpg 255w, https:\/\/tfi-aachen.de\/wp-content\/uploads\/2021\/12\/tfi_schallabsorption_1-768x905.jpg 768w, https:\/\/tfi-aachen.de\/wp-content\/uploads\/2021\/12\/tfi_schallabsorption_1.jpg 1080w\" sizes=\"auto, (max-width: 869px) 100vw, 869px\" \/><figcaption class=\"wp-element-caption\">Sketch of the test arrangement for the sound absorption test. Loudspeaker and microphone above the beige test object<\/figcaption><\/figure>\n\n\n    <\/div>\n<\/div>\n\n\t<\/div>\n\n\n\n<div class=\"col-12 col-sm-12 col-lg-2 col-xl-2\">\n\t\t\t\t<\/div>\n\n<\/div>\n\n\n<div class=\"wp-bootstrap-blocks-row row\">\n\t\n\n<div class=\"col-12 col-sm-12 col-lg-2 col-xl-2\">\n\t\t\t\t<\/div>\n\n\n\n<div class=\"col-12 col-sm-12 col-md-6 col-lg-4 col-xl-4\">\n\t\t\t\n\n\n<div id=\"contact-block_683f1b7f451d3\" class=\"block contact bg-white alignfull\">\n    <div class=\"container\">\n        <div class=\"content\">\n            <div class=\"header\">\n                <h3 class=\"title\">YOUR CONTACT PERSON<\/h3>\n            <\/div>\n            <div class=\"image\">\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"1281\" src=\"https:\/\/tfi-aachen.de\/wp-content\/uploads\/2022\/01\/210726-TFI-0644-1920px.jpg\" class=\"image\" alt=\"\" srcset=\"https:\/\/tfi-aachen.de\/wp-content\/uploads\/2022\/01\/210726-TFI-0644-1920px.jpg 1920w, https:\/\/tfi-aachen.de\/wp-content\/uploads\/2022\/01\/210726-TFI-0644-1920px-450x300.jpg 450w, https:\/\/tfi-aachen.de\/wp-content\/uploads\/2022\/01\/210726-TFI-0644-1920px-1110x741.jpg 1110w, https:\/\/tfi-aachen.de\/wp-content\/uploads\/2022\/01\/210726-TFI-0644-1920px-768x512.jpg 768w, https:\/\/tfi-aachen.de\/wp-content\/uploads\/2022\/01\/210726-TFI-0644-1920px-1536x1025.jpg 1536w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/>            <\/div>\n            <div class=\"text\">\n                <p>Dipl.-Ing. <b>Ulrike Balg<\/b><\/p>\n                <p>Fire \/ Building Physics<\/p>\n\t\t\t\t                    <p>Phone: <a href=\"tel:+49 241 9769-00\">+49 241 9769-00<\/a><\/p>\n\t\t\t\t\t\t\t\t                    <p><a href=\"mailto:support@tfi-aachen.de\">support@tfi-aachen.de<\/a><\/p>\n\t\t\t\t            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n\t<\/div>\n\n\n\n<div class=\"col-12 col-sm-12 col-md-6 col-lg-4 col-xl-4\">\n\t\t\t\n\n\n<div id=\"contact-block_60b5fd33e3a33\" class=\"block contact bg-white alignfull\">\n    <div class=\"container\">\n        <div class=\"content\">\n            <div class=\"header\">\n                <h3 class=\"title\">YOUR CONTACT PERSON<\/h3>\n            <\/div>\n            <div class=\"image\">\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"1281\" src=\"https:\/\/tfi-aachen.de\/wp-content\/uploads\/2022\/01\/211123-TFI-1475-1920px.jpg\" class=\"image\" alt=\"\" srcset=\"https:\/\/tfi-aachen.de\/wp-content\/uploads\/2022\/01\/211123-TFI-1475-1920px.jpg 1920w, https:\/\/tfi-aachen.de\/wp-content\/uploads\/2022\/01\/211123-TFI-1475-1920px-450x300.jpg 450w, https:\/\/tfi-aachen.de\/wp-content\/uploads\/2022\/01\/211123-TFI-1475-1920px-1110x741.jpg 1110w, https:\/\/tfi-aachen.de\/wp-content\/uploads\/2022\/01\/211123-TFI-1475-1920px-768x512.jpg 768w, https:\/\/tfi-aachen.de\/wp-content\/uploads\/2022\/01\/211123-TFI-1475-1920px-1536x1025.jpg 1536w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/>            <\/div>\n            <div class=\"text\">\n                <p>Dr.-Ing. <b>Andreas Zo\u00ebga<\/b><\/p>\n                <p>Head of Testing Laboratory<\/p>\n\t\t\t\t                    <p>Phone: <a href=\"tel:+49 241 9679-00 \">+49 241 9679-00 <\/a><\/p>\n\t\t\t\t\t\t\t\t                    <p><a href=\"mailto:support@tfi-aachen.de\">support@tfi-aachen.de<\/a><\/p>\n\t\t\t\t            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n\t<\/div>\n\n\n\n<div class=\"col-12 col-sm-12 col-lg-2 col-xl-2\">\n\t\t\t\t<\/div>\n\n<\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":5267,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"inline_featured_image":false,"_lmt_disableupdate":"no","_lmt_disable":"","footnotes":""},"tags":[],"class_list":["post-4315","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Building Acoustics Laboratory: Sound Absorption in a Reverberation Room EN ISO 354 \/ ASTM C423 - TFI Aachen GmbH<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/tfi-aachen.de\/en\/testing\/building-acoustics-laboratory-sound-absorption-in-a-reverberation-room-en-iso-354-astm-c423\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Building Acoustics Laboratory: Sound Absorption in a Reverberation Room EN ISO 354 \/ ASTM C423 - TFI Aachen GmbH\" \/>\n<meta property=\"og:url\" content=\"https:\/\/tfi-aachen.de\/en\/testing\/building-acoustics-laboratory-sound-absorption-in-a-reverberation-room-en-iso-354-astm-c423\/\" \/>\n<meta property=\"og:site_name\" content=\"TFI Aachen GmbH\" \/>\n<meta property=\"article:modified_time\" content=\"2025-06-03T16:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/tfi-aachen.de\/wp-content\/uploads\/2021\/12\/tfi_schallabsorption_2-1110x624.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/tfi-aachen.de\/en\/testing\/building-acoustics-laboratory-sound-absorption-in-a-reverberation-room-en-iso-354-astm-c423\/\",\"url\":\"https:\/\/tfi-aachen.de\/en\/testing\/building-acoustics-laboratory-sound-absorption-in-a-reverberation-room-en-iso-354-astm-c423\/\",\"name\":\"Building Acoustics Laboratory: Sound Absorption in a Reverberation Room EN ISO 354 \/ ASTM C423 - TFI Aachen GmbH\",\"isPartOf\":{\"@id\":\"https:\/\/tfi-aachen.de\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/tfi-aachen.de\/en\/testing\/building-acoustics-laboratory-sound-absorption-in-a-reverberation-room-en-iso-354-astm-c423\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/tfi-aachen.de\/en\/testing\/building-acoustics-laboratory-sound-absorption-in-a-reverberation-room-en-iso-354-astm-c423\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/tfi-aachen.de\/wp-content\/uploads\/2021\/12\/tfi_schallabsorption_2-1110x624.jpg\",\"datePublished\":\"2021-12-06T08:53:01+00:00\",\"dateModified\":\"2025-06-03T16:00:00+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/tfi-aachen.de\/en\/testing\/building-acoustics-laboratory-sound-absorption-in-a-reverberation-room-en-iso-354-astm-c423\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/tfi-aachen.de\/en\/testing\/building-acoustics-laboratory-sound-absorption-in-a-reverberation-room-en-iso-354-astm-c423\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/tfi-aachen.de\/en\/testing\/building-acoustics-laboratory-sound-absorption-in-a-reverberation-room-en-iso-354-astm-c423\/#primaryimage\",\"url\":\"https:\/\/tfi-aachen.de\/wp-content\/uploads\/2021\/12\/tfi_schallabsorption_2-1110x624.jpg\",\"contentUrl\":\"https:\/\/tfi-aachen.de\/wp-content\/uploads\/2021\/12\/tfi_schallabsorption_2-1110x624.jpg\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/tfi-aachen.de\/en\/testing\/building-acoustics-laboratory-sound-absorption-in-a-reverberation-room-en-iso-354-astm-c423\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Startseite\",\"item\":\"https:\/\/tfi-aachen.de\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Testing\",\"item\":\"https:\/\/tfi-aachen.de\/en\/testing\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Building Acoustics Laboratory: Sound Absorption in a Reverberation Room EN ISO 354 \/ ASTM C423\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/tfi-aachen.de\/#website\",\"url\":\"https:\/\/tfi-aachen.de\/\",\"name\":\"TFI Aachen GmbH\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/tfi-aachen.de\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/tfi-aachen.de\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/tfi-aachen.de\/#organization\",\"name\":\"TFI Aachen GmbH\",\"url\":\"https:\/\/tfi-aachen.de\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/tfi-aachen.de\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/tfi-aachen.de\/wp-content\/uploads\/2021\/03\/cropped-transparent.png\",\"contentUrl\":\"https:\/\/tfi-aachen.de\/wp-content\/uploads\/2021\/03\/cropped-transparent.png\",\"width\":1248,\"height\":494,\"caption\":\"TFI Aachen GmbH\"},\"image\":{\"@id\":\"https:\/\/tfi-aachen.de\/#\/schema\/logo\/image\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Building Acoustics Laboratory: Sound Absorption in a Reverberation Room EN ISO 354 \/ ASTM C423 - TFI Aachen GmbH","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/tfi-aachen.de\/en\/testing\/building-acoustics-laboratory-sound-absorption-in-a-reverberation-room-en-iso-354-astm-c423\/","og_locale":"en_US","og_type":"article","og_title":"Building Acoustics Laboratory: Sound Absorption in a Reverberation Room EN ISO 354 \/ ASTM C423 - TFI Aachen GmbH","og_url":"https:\/\/tfi-aachen.de\/en\/testing\/building-acoustics-laboratory-sound-absorption-in-a-reverberation-room-en-iso-354-astm-c423\/","og_site_name":"TFI Aachen GmbH","article_modified_time":"2025-06-03T16:00:00+00:00","og_image":[{"url":"https:\/\/tfi-aachen.de\/wp-content\/uploads\/2021\/12\/tfi_schallabsorption_2-1110x624.jpg","type":"","width":"","height":""}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/tfi-aachen.de\/en\/testing\/building-acoustics-laboratory-sound-absorption-in-a-reverberation-room-en-iso-354-astm-c423\/","url":"https:\/\/tfi-aachen.de\/en\/testing\/building-acoustics-laboratory-sound-absorption-in-a-reverberation-room-en-iso-354-astm-c423\/","name":"Building Acoustics Laboratory: Sound Absorption in a Reverberation Room EN ISO 354 \/ ASTM C423 - TFI Aachen GmbH","isPartOf":{"@id":"https:\/\/tfi-aachen.de\/#website"},"primaryImageOfPage":{"@id":"https:\/\/tfi-aachen.de\/en\/testing\/building-acoustics-laboratory-sound-absorption-in-a-reverberation-room-en-iso-354-astm-c423\/#primaryimage"},"image":{"@id":"https:\/\/tfi-aachen.de\/en\/testing\/building-acoustics-laboratory-sound-absorption-in-a-reverberation-room-en-iso-354-astm-c423\/#primaryimage"},"thumbnailUrl":"https:\/\/tfi-aachen.de\/wp-content\/uploads\/2021\/12\/tfi_schallabsorption_2-1110x624.jpg","datePublished":"2021-12-06T08:53:01+00:00","dateModified":"2025-06-03T16:00:00+00:00","breadcrumb":{"@id":"https:\/\/tfi-aachen.de\/en\/testing\/building-acoustics-laboratory-sound-absorption-in-a-reverberation-room-en-iso-354-astm-c423\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/tfi-aachen.de\/en\/testing\/building-acoustics-laboratory-sound-absorption-in-a-reverberation-room-en-iso-354-astm-c423\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/tfi-aachen.de\/en\/testing\/building-acoustics-laboratory-sound-absorption-in-a-reverberation-room-en-iso-354-astm-c423\/#primaryimage","url":"https:\/\/tfi-aachen.de\/wp-content\/uploads\/2021\/12\/tfi_schallabsorption_2-1110x624.jpg","contentUrl":"https:\/\/tfi-aachen.de\/wp-content\/uploads\/2021\/12\/tfi_schallabsorption_2-1110x624.jpg"},{"@type":"BreadcrumbList","@id":"https:\/\/tfi-aachen.de\/en\/testing\/building-acoustics-laboratory-sound-absorption-in-a-reverberation-room-en-iso-354-astm-c423\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Startseite","item":"https:\/\/tfi-aachen.de\/en\/"},{"@type":"ListItem","position":2,"name":"Testing","item":"https:\/\/tfi-aachen.de\/en\/testing\/"},{"@type":"ListItem","position":3,"name":"Building Acoustics Laboratory: Sound Absorption in a Reverberation Room EN ISO 354 \/ ASTM C423"}]},{"@type":"WebSite","@id":"https:\/\/tfi-aachen.de\/#website","url":"https:\/\/tfi-aachen.de\/","name":"TFI Aachen GmbH","description":"","publisher":{"@id":"https:\/\/tfi-aachen.de\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/tfi-aachen.de\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/tfi-aachen.de\/#organization","name":"TFI Aachen GmbH","url":"https:\/\/tfi-aachen.de\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/tfi-aachen.de\/#\/schema\/logo\/image\/","url":"https:\/\/tfi-aachen.de\/wp-content\/uploads\/2021\/03\/cropped-transparent.png","contentUrl":"https:\/\/tfi-aachen.de\/wp-content\/uploads\/2021\/03\/cropped-transparent.png","width":1248,"height":494,"caption":"TFI Aachen GmbH"},"image":{"@id":"https:\/\/tfi-aachen.de\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/tfi-aachen.de\/en\/wp-json\/wp\/v2\/pages\/4315","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tfi-aachen.de\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/tfi-aachen.de\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/tfi-aachen.de\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tfi-aachen.de\/en\/wp-json\/wp\/v2\/comments?post=4315"}],"version-history":[{"count":16,"href":"https:\/\/tfi-aachen.de\/en\/wp-json\/wp\/v2\/pages\/4315\/revisions"}],"predecessor-version":[{"id":10481,"href":"https:\/\/tfi-aachen.de\/en\/wp-json\/wp\/v2\/pages\/4315\/revisions\/10481"}],"up":[{"embeddable":true,"href":"https:\/\/tfi-aachen.de\/en\/wp-json\/wp\/v2\/pages\/5267"}],"wp:attachment":[{"href":"https:\/\/tfi-aachen.de\/en\/wp-json\/wp\/v2\/media?parent=4315"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tfi-aachen.de\/en\/wp-json\/wp\/v2\/tags?post=4315"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}