{"id":6128,"date":"2019-01-27T11:16:03","date_gmt":"2019-01-27T09:16:03","guid":{"rendered":"https:\/\/outilstice.com\/?p=6128"},"modified":"2026-05-12T08:04:04","modified_gmt":"2026-05-12T06:04:04","slug":"3-mesureurs-bruit-pour-la-classe","status":"publish","type":"post","link":"https:\/\/outilstice.com\/en\/2019\/01\/3-mesureurs-bruit-pour-la-classe\/","title":{"rendered":"5 noise meters for the class"},"content":{"rendered":"<p>Nothing is more recognisable than the noise of<strong>a classroom full of children talking to each other and working.<\/strong> A sound atmosphere that sometimes literally takes off to become noise, harmful to concentration and working together.<\/p>\n<p>Excessive noise in a classroom can have a real impact on student concentration, learning and even overall health. (Not to mention the teacher\u2019s fatigue and skull aches).<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-13967\" src=\"https:\/\/outilstice.com\/wp-content\/uploads\/2019\/01\/e238df78e07f697902c10ea37f2b6274.jpg\" alt=\"measuring noise in class\" width=\"736\" height=\"551\" srcset=\"https:\/\/outilstice.com\/wp-content\/uploads\/2019\/01\/e238df78e07f697902c10ea37f2b6274.jpg 736w, https:\/\/outilstice.com\/wp-content\/uploads\/2019\/01\/e238df78e07f697902c10ea37f2b6274-300x225.jpg 300w\" sizes=\"auto, (max-width: 736px) 100vw, 736px\" \/><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a202e805b372\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a202e805b372\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/outilstice.com\/en\/2019\/01\/3-mesureurs-bruit-pour-la-classe\/#Limportance_de_reguler_le_bruit_pour_ameliorer_lapprentissage_et_le_bien-etre\" >The importance of regulating noise to improve learning and well-being<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/outilstice.com\/en\/2019\/01\/3-mesureurs-bruit-pour-la-classe\/#Trois_solutions_en_ligne_pour_la_mesure_du_bruit\" >Three online solutions for noise measurement<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/outilstice.com\/en\/2019\/01\/3-mesureurs-bruit-pour-la-classe\/#Bouncy_Balls_Visualisation_dynamique_du_niveau_sonore\" >Bouncy Balls. Dynamic visualization of the sound level<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/outilstice.com\/en\/2019\/01\/3-mesureurs-bruit-pour-la-classe\/#Classroom_Noise_O_Meter_Un_sonometre_educatif_et_intuitif\" >Classroom Noise O Meter. An educational and intuitive sonometer<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/outilstice.com\/en\/2019\/01\/3-mesureurs-bruit-pour-la-classe\/#Shhht_un_sonometre_ludique_qui_valorise_le_calme\" >Shhht: a playful sonometer that values calm<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/outilstice.com\/en\/2019\/01\/3-mesureurs-bruit-pour-la-classe\/#Les_trois_applications_en_un_coup_doeil\" >The three applications at a glance<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/outilstice.com\/en\/2019\/01\/3-mesureurs-bruit-pour-la-classe\/#Des_applications_mobiles_pour_tablettes_et_smartphones\" >Mobile apps for tablets and smartphones<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/outilstice.com\/en\/2019\/01\/3-mesureurs-bruit-pour-la-classe\/#Des_outils_ludiques_pour_responsabiliser_vos_eleves\" >Playful tools to empower your students<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/outilstice.com\/en\/2019\/01\/3-mesureurs-bruit-pour-la-classe\/#Pour_aller_plus_loin\" >To go further<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/outilstice.com\/en\/2019\/01\/3-mesureurs-bruit-pour-la-classe\/#Comment_interpreter_les_mesures_de_decibels_db_dans_une_salle_de_classe\" >How to interpret the measurements of decibels db in a classroom?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Limportance_de_reguler_le_bruit_pour_ameliorer_lapprentissage_et_le_bien-etre\"><\/span>The importance of regulating noise to improve learning and well-being<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Research has long shown that noisy environments interfere with school performance. They reduce the understanding of the concepts taught and make memorization less effective. In addition, prolonged exposure to noise can cause stress in students, manifested by fatigue, headaches or sleep disorders.<\/p>\n<p>Using tools such as noise meters or online sound meters not only detects excessive noise levels, but also raises students\u2019 awareness of the importance of managing their own sound volume.<\/p>\n<p>How to measure this noise level and especially <strong>how to make your students aware of the volume of their exchanges<\/strong> so that, on their own, they try to regulate themselves?<\/p>\n<p>Discover three online tools and two mobile applications that turn the microphone of your computer or smartphone into a real sound meter. These solutions make it possible to <strong>easily measure and visualise the sound level of a room.<\/strong> Here are five practical tools to assess noise in your classroom.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Trois_solutions_en_ligne_pour_la_mesure_du_bruit\"><\/span>Three online solutions for noise measurement<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Here are three online solutions to measure the noise level in your classroom. All three are free and very simple to use via the TNI or a video projector.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Bouncy_Balls_Visualisation_dynamique_du_niveau_sonore\"><\/span>Bouncy Balls. Dynamic visualization of the sound level<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-6130\" src=\"https:\/\/outilstice.com\/wp-content\/uploads\/2019\/01\/boncy-600.png\" alt=\"Bouncy Balls Measuring\" width=\"600\" height=\"310\" srcset=\"https:\/\/outilstice.com\/wp-content\/uploads\/2019\/01\/boncy-600.png 600w, https:\/\/outilstice.com\/wp-content\/uploads\/2019\/01\/boncy-600-300x155.png 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>Here is one of the most well-known noise measurers. I even dedicated a full-fledged article to him some time ago:\u00a0<a title=\"Boncy balls\" href=\"https:\/\/outilstice.com\/2016\/09\/bouncy-balls-visualiser-le-niveau-sonore-de-sa-classe\/\" target=\"_blank\" rel=\"noopener\">Bouncy Balls. Visualize the sound level of your class<\/a>. This measuring instrument shows the volume of noise in a room by displaying a set of balls bouncing off your screen.<\/p>\n<p>The application offers several interesting features:<\/p>\n<ul>\n<li>Choice of visual themes (plastic balls, emojis, numbers, bubbles, eyes)<\/li>\n<li>Adjusting Microphone Sensitivity<\/li>\n<li>Customizable audible alert options (silence, beep, chut)<\/li>\n<li>Checking the total number of items displayed<\/li>\n<\/ul>\n<p>The principle is simple: <strong>the higher the noise level, the more the balls stir and bounce on the screen.<\/strong> When calm comes back, they fall slowly. This immediate visualization allows students to become aware of the noise they generate and to self-regulate naturally.<\/p>\n<p>The tool is particularly suitable for use on large screens or digital boards. Its clean interface and intuitive operation only require a modern browser (Chrome or Firefox recommended) and microphone access permission to work.<br \/>\nLink: <a href=\"https:\/\/bouncyballs.org\/\" target=\"_blank\" rel=\"noopener\"><strong>Bouncy Balls<\/strong><\/a><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Classroom_Noise_O_Meter_Un_sonometre_educatif_et_intuitif\"><\/span>Classroom Noise O Meter. An educational and intuitive sonometer<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-13965\" src=\"https:\/\/outilstice.com\/wp-content\/uploads\/2019\/01\/sonometre_pour_la_classe-1024x495.jpg\" alt=\"Sonometer for online class\" width=\"679\" height=\"328\" srcset=\"https:\/\/outilstice.com\/wp-content\/uploads\/2019\/01\/sonometre_pour_la_classe-1024x495.jpg 1024w, https:\/\/outilstice.com\/wp-content\/uploads\/2019\/01\/sonometre_pour_la_classe-300x145.jpg 300w, https:\/\/outilstice.com\/wp-content\/uploads\/2019\/01\/sonometre_pour_la_classe-768x372.jpg 768w, https:\/\/outilstice.com\/wp-content\/uploads\/2019\/01\/sonometre_pour_la_classe-1536x743.jpg 1536w, https:\/\/outilstice.com\/wp-content\/uploads\/2019\/01\/sonometre_pour_la_classe.jpg 1920w\" sizes=\"auto, (max-width: 679px) 100vw, 679px\" \/><\/p>\n<p>Developed on the Scratch platform, <strong>Classroom Noise O Meter<\/strong> is a simple and effective tool to visualize the sound level in your classroom. Its sleek interface features a colorful indicator that reacts in real time to variations in noise in the room.<\/p>\n<p>The system uses an intuitive colour code:<\/p>\n<ul>\n<li>Green: acceptable sound level<\/li>\n<li>Yellow: level that begins to be high<\/li>\n<li>Red: too high a level requiring intervention<\/li>\n<\/ul>\n<p>The advantage of this tool lies in its ease of use: it is enough to open the page, to allow access to the computer microphone, and the sound level meter is immediately operational. Its clear and visible display from afar makes it easy for students to self-regulate.<\/p>\n<p>Totally free and accessible directly from a web browser, it does not require any registration or installation. It can be projected onto a TNI or displayed on the class computer screen.<\/p>\n<p>Link: <a href=\"https:\/\/scratch.mit.edu\/projects\/2731434\/\" target=\"_blank\" rel=\"noopener\"><strong>Classroom Noise O Meter<\/strong><\/a><\/p>\n<div class=\"ChatMessage_messageRow__DHlnq\">\n<div class=\"ChatMessage_messageWrapper__4Ugd6\">\n<div class=\"Message_rowWithFooter__FShU6\">\n<div class=\"Message_row__ug_UU\">\n<div class=\"Message_messageBubbleWrapper__sEq8z\">\n<div class=\"Message_leftSideMessageBubble__VPdk6\">\n<div class=\"Message_messageTextContainer__w64Sc\">\n<div>\n<div class=\"Markdown_markdownContainer__Tz3HQ\">\n<h3><span class=\"ez-toc-section\" id=\"Shhht_un_sonometre_ludique_qui_valorise_le_calme\"><\/span>Shhht: a playful sonometer that values calm<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-13966\" src=\"https:\/\/outilstice.com\/wp-content\/uploads\/2019\/01\/SSht-1024x712.png\" alt=\"noise measuring device for the class\" width=\"576\" height=\"401\" srcset=\"https:\/\/outilstice.com\/wp-content\/uploads\/2019\/01\/SSht-1024x712.png 1024w, https:\/\/outilstice.com\/wp-content\/uploads\/2019\/01\/SSht-300x209.png 300w, https:\/\/outilstice.com\/wp-content\/uploads\/2019\/01\/SSht-768x534.png 768w, https:\/\/outilstice.com\/wp-content\/uploads\/2019\/01\/SSht-1536x1069.png 1536w, https:\/\/outilstice.com\/wp-content\/uploads\/2019\/01\/SSht.png 1900w\" sizes=\"auto, (max-width: 576px) 100vw, 576px\" \/><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"LeftSideChatMessageHeader_leftSideMessageHeader__eGSwx\">\n<div class=\"DropdownMenuButton_wrapper__uc04T ChatMessageOverflowButton_overflowButtonWrapper__gzb2s\">\n<p>Unlike conventional sound meters, Shhht (<a href=\"https:\/\/outilstice.com\/2020\/06\/lalilo-enseignement-apprentissage-lecture\/\" target=\"_blank\" rel=\"noopener\">developed by Lalilo<\/a>) proposes an original and positive approach to noise management in the classroom. This free web application turns sound control into a motivating activity thanks to a visual reward system.<\/p>\n<p>Its principle is simple, but effective: the more students respect the defined sound level, the more a drawing is gradually revealed on the screen. If the volume exceeds the set threshold, the drawing pauses, naturally prompting students to return to an appropriate sound level.<\/p>\n<p><strong>The tool offers great flexibility of use<\/strong> with:<\/p>\n<ul>\n<li>5 preset sound levels (very quiet, calm, relaxed, friendly or dynamic)<\/li>\n<li>An integrated timer to set the duration of the activity<\/li>\n<li>A choice of varied drawings that are gradually revealed<\/li>\n<\/ul>\n<p>Ideal for the first stage, this application is suitable for both collective use, via a computer connected to a projector, and group work on a tablet. Its use is disconcertingly simple: it is enough to allow access to the microphone to start using it.<\/p>\n<p>Shhht\u2019s major advantage lies in its non-punitive approach: rather than alerting when noise is exceeded, it positively encourages appropriate behaviour.<\/p>\n<p>Link: <a href=\"https:\/\/shhht.lalilo.com\/\" target=\"_blank\" rel=\"noopener\"><strong>Shht<\/strong><\/a><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Les_trois_applications_en_un_coup_doeil\"><\/span>The three applications at a glance<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<table class=\"wp-block-table\">\n<thead>\n<tr>\n<th>Characteristics<\/th>\n<th>Classroom Noise O Meter<\/th>\n<th>Shhht<\/th>\n<th>Bouncy Balls<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Interface<\/strong><\/td>\n<td>Simple and minimalist<\/td>\n<td>Artistic and evolutionary<\/td>\n<td>Dynamic and playful<\/td>\n<\/tr>\n<tr>\n<td><strong>Visualization<\/strong><\/td>\n<td>Color code (green\/yellow\/red)<\/td>\n<td>Drawing which is gradually revealed<\/td>\n<td>Balls that bounce<\/td>\n<\/tr>\n<tr>\n<td><strong>Personalization<\/strong><\/td>\n<td>No<\/td>\n<td>5 preset sound levels:<br \/>\n\u2022 very quiet<br \/>\n\u2022 calm<br \/>\n\u2022 relaxed<br \/>\n\u2022 user-friendly<br \/>\n\u2022 dynamic<\/td>\n<td>Multiple:<br \/>\n\u2022 Adjustable sensitivity<br \/>\n\u2022 Choice of visual themes<br \/>\n\u2022 Number of items<br \/>\n\u2022 Types of alerts<\/td>\n<\/tr>\n<tr>\n<td><strong>Strengths<\/strong><\/td>\n<td>\u2022 Very intuitive<br \/>\n\u2022 Perfect to get started<br \/>\n\u2022 Immediate reading<\/td>\n<td>\u2022 Positive approach<br \/>\n\u2022 Built-in timer<br \/>\n\u2022 Visual reward<\/td>\n<td>\u2022 Highly customizable<br \/>\n\u2022 Very interactive<br \/>\n\u2022 Visually attractive<\/td>\n<\/tr>\n<tr>\n<td><strong>Points of attention<\/strong><\/td>\n<td>\u2022 Limited features<br \/>\n\u2022 No customization<\/td>\n<td>\u2022 Requires a defined duration<br \/>\n\u2022 One drawing at a time<\/td>\n<td>\u2022 Can be too stimulating<br \/>\n\u2022 Reverse effect risk<\/td>\n<\/tr>\n<tr>\n<td><strong>Recommended age<\/strong><\/td>\n<td>All levels<\/td>\n<td>Kindergarten and elementary<\/td>\n<td>Elementary and more<\/td>\n<\/tr>\n<tr>\n<td><strong>Installation<\/strong><\/td>\n<td>Web browsing only<\/td>\n<td>Web browsing only<\/td>\n<td>Web browsing only<\/td>\n<\/tr>\n<tr>\n<td><strong>Compatibility<\/strong><\/td>\n<td>All browsers<\/td>\n<td>All modern navigators<\/td>\n<td>Chrome\/Firefox recommended<\/td>\n<\/tr>\n<tr>\n<td><strong>Ideal for<\/strong><\/td>\n<td>First use and quiet classes<\/td>\n<td>Timed activities and positive motivation<\/td>\n<td>Dynamic classes and group work<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Des_applications_mobiles_pour_tablettes_et_smartphones\"><\/span>Mobile apps for tablets and smartphones<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/div>\n<div id=\"attachment_11375\" style=\"width: 698px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-11375\" class=\"wp-image-11375\" src=\"https:\/\/outilstice.com\/wp-content\/uploads\/2019\/01\/mesureur_bruit_mobile.jpg\" alt=\"Noise Meter\" width=\"688\" height=\"387\" srcset=\"https:\/\/outilstice.com\/wp-content\/uploads\/2019\/01\/mesureur_bruit_mobile.jpg 768w, https:\/\/outilstice.com\/wp-content\/uploads\/2019\/01\/mesureur_bruit_mobile-300x169.jpg 300w\" sizes=\"auto, (max-width: 688px) 100vw, 688px\" \/><p id=\"caption-attachment-11375\" class=\"wp-caption-text\">Mobile noise meter.<\/p><\/div>\n<p>Let's add to these three online sound meters, their equivalents for mobiles and tablets. Rather, they are for personal use. Most mobile noise meters offer a more advanced interface and options.<\/p>\n<p>To be able to measure the decibels in the room, you can use applications like <a href=\"https:\/\/apps.apple.com\/ca\/app\/sonometre-db-decibel-meter\/id1227650795?l=fr\" target=\"_blank\" rel=\"noopener\">Sonometer - dB Decibel Meter for iOS<\/a> or <a href=\"https:\/\/play.google.com\/store\/apps\/details?id=com.gamebasic.decibel&amp;hl=fr_CA&amp;gl=US\" target=\"_blank\" rel=\"noopener\">Sound Meter for Android<\/a>. These apps provide quick sound level measurement and help monitor the volume of music, a movie or your class.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Des_outils_ludiques_pour_responsabiliser_vos_eleves\"><\/span>Playful tools to empower your students<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Managing noise in the classroom is a real daily challenge. These digital tools offer playful solutions to empower students. Beyond their sound measurement function, they can be used as teaching aids to develop the group\u2019s autonomy and collective awareness.<\/p>\n<p>Ideally, their use should be adapted as needed. I advise you to alternate between the tools during the year to maintain the interest of the students.<\/p>\n<p>Feel free to share in the comments your experiences with these different tools or your other tips for managing noise levels in the classroom!<\/p>\n<\/div>\n<p>&#8212;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Pour_aller_plus_loin\"><\/span>To go further<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 class=\"group\/query relative whitespace-pre-line break-words [word-break:break-word] default font-display text-3xl font-regular text-textMain dark:text-textMainDark selection:bg-super\/50 selection:text-textMain dark:selection:bg-superDuper\/10 dark:selection:text-superDark\"><span class=\"ez-toc-section\" id=\"Comment_interpreter_les_mesures_de_decibels_db_dans_une_salle_de_classe\"><\/span>How to interpret the measurements of decibels db in a classroom?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The tools presented here, including mobile apps, do not have professionally accurate measurement ranges, but they do provide useful insights into what can happen in your classroom. Are there official standards? What levels should not be exceeded? Here is some useful information.<\/p>\n<p><span class=\"\">The World Health Organisation (WHO) recommends a maximum noise level of 35 dB(A) in classrooms<\/span><span class=\"\"><span class=\"whitespace-nowrap\">.<\/span><\/span><span class=\"\">\u00a0This threshold is considered optimal for:<\/span><\/p>\n<ul class=\"marker:text-textOff list-disc pl-8\">\n<li><span class=\"\">Ensuring good speech intelligibility<\/span><\/li>\n<li><span class=\"\">Facilitate information retrieval<\/span><\/li>\n<li><span class=\"\">Fostering effective communication<\/span><\/li>\n<\/ul>\n<p>But not surprisingly <span class=\"\">\u00a0The actual noise levels in our schools are often higher. <\/span><span class=\"\">A busy class can reach 48 dBA in quiet periods and exceed 60 dBA in activities. Not to mention the<\/span><span class=\"\"> school canteens with an average noise level of around 78 decibels, which can exceed 89 decibels at times.<\/span><\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Nothing is more recognisable than the noise of a classroom full of children talking to each other and working. A sound atmosphere that sometimes literally takes off to become noise, harmful to concentration...<\/p>","protected":false},"author":1,"featured_media":13966,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"no","_lmt_disable":"no","footnotes":""},"categories":[105,3],"tags":[60,80],"class_list":["post-6128","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pedagogie","category-utilitaires","tag-son","tag-utilitaires"],"modified_by":"Fidel Navamuel","_links":{"self":[{"href":"https:\/\/outilstice.com\/en\/wp-json\/wp\/v2\/posts\/6128","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/outilstice.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/outilstice.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/outilstice.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/outilstice.com\/en\/wp-json\/wp\/v2\/comments?post=6128"}],"version-history":[{"count":3,"href":"https:\/\/outilstice.com\/en\/wp-json\/wp\/v2\/posts\/6128\/revisions"}],"predecessor-version":[{"id":13964,"href":"https:\/\/outilstice.com\/en\/wp-json\/wp\/v2\/posts\/6128\/revisions\/13964"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/outilstice.com\/en\/wp-json\/wp\/v2\/media\/13966"}],"wp:attachment":[{"href":"https:\/\/outilstice.com\/en\/wp-json\/wp\/v2\/media?parent=6128"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/outilstice.com\/en\/wp-json\/wp\/v2\/categories?post=6128"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/outilstice.com\/en\/wp-json\/wp\/v2\/tags?post=6128"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}