{"id":79079,"date":"2024-05-04T14:00:37","date_gmt":"2024-05-04T12:00:37","guid":{"rendered":"https:\/\/botland.com.pl\/blog\/sonometer-what-is-it-and-what-is-it-used-for\/"},"modified":"2026-04-08T10:58:10","modified_gmt":"2026-04-08T08:58:10","slug":"sonometer-what-is-it-and-what-is-it-used-for","status":"publish","type":"post","link":"https:\/\/botland.store\/blog\/sonometer-what-is-it-and-what-is-it-used-for\/","title":{"rendered":"Sonometer &#8211; what is it and what is it used for?"},"content":{"rendered":"<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading time:<\/span> <span class=\"rt-time\"> 3<\/span> <span class=\"rt-label rt-postfix\">min.<\/span><\/span>\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"79079\" class=\"elementor elementor-79079 elementor-73423\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e7b2cbb elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e7b2cbb\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6e630764\" data-id=\"6e630764\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e114ad5 elementor-widget elementor-widget-text-editor\" data-id=\"e114ad5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Measuring sound levels and sound pressure is an important aspect of monitoring the sound environment in many different fields. They are used by various industries, environmental protection, sound engineering and medicine. We mainly associate it with measurement in decibels (dB), which determine the level of sound intensity. As a rough guide, this is often described situationally:<\/p>\n<ul style=\"font-size: 16px; background-color: #ffffff;\">\n<li style=\"font-size: 16px;\">Whisper: 30 dB<\/li>\n<li style=\"font-size: 16px;\">Normal conversation: 60 dB<\/li>\n<li style=\"font-size: 16px;\">The usual noise level in a large city: 55 &#8211; 65 dB<\/li>\n<li style=\"font-size: 16px;\">Lawn mower: 90 dB<\/li>\n<li style=\"font-size: 16px;\">Movie in the theater: 80-100 dB<\/li>\n<li style=\"font-size: 16px;\">Live music: 100-115 dB<\/li>\n<\/ul>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0a1c3ec elementor-widget elementor-widget-heading\" data-id=\"0a1c3ec\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Sound measurements and sonometers<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-322a39b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"322a39b\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-0d987ad\" data-id=\"0d987ad\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fb47c53 elementor-widget elementor-widget-text-editor\" data-id=\"fb47c53\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The indicated harmful limit for hearing is <strong>85 dB<\/strong>. Louder sounds, such as those emitted from motorcycle exhausts, are often grounds for fines, as some of us have painfully learned. Many countries set standards for acceptable sound levels in various environments to protect public health and the environment. This, however, is rather circular knowledge, and it turns out, however, that in more specialized measurements much more sound parameters are paid attention to.<\/p>\n<p>And so sound pressure is a measure of the mechanical effects of a sound wave expressed in <strong>pascals<\/strong> (Pa) or <strong>micropascals<\/strong> (\u03bcPa). Sound pressure refers to pressure changes in a medium that are caused by sound waves. In practice, for sound waves propagating in gases, sound pressure refers to changes in atmospheric pressure due to changes in air density. This is where we come to the aid of <a href=\"https:\/\/botland.com.pl\/mierniki-pozostale\/10776-sonometr-decybelomierz-benetech-gm1351-od-30-do-130dba-5903738810468.html\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><br \/>\n  <strong>sonometers<\/strong><br \/>\n<\/a>.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-8531f12\" data-id=\"8531f12\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-923b69c elementor-widget elementor-widget-image\" data-id=\"923b69c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2024\/04\/10776_1_kwadrat.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"10776_1_kwadrat\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NzkwNDUsInVybCI6Imh0dHBzOlwvXC9ib3RsYW5kLnN0b3JlXC9ibG9nXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI0XC8wNFwvMTA3NzZfMV9rd2FkcmF0LmpwZyJ9\" data-wpel-link=\"internal\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/botland.store\/blog\/wp-content\/uploads\/2024\/04\/10776_1_kwadrat-1024x1024.jpg\" class=\"attachment-large size-large wp-image-79045\" alt=\"\" srcset=\"https:\/\/botland.store\/blog\/wp-content\/uploads\/2024\/04\/10776_1_kwadrat-1024x1024.jpg 1024w, https:\/\/botland.store\/blog\/wp-content\/uploads\/2024\/04\/10776_1_kwadrat-300x300.jpg 300w, https:\/\/botland.store\/blog\/wp-content\/uploads\/2024\/04\/10776_1_kwadrat-768x768.jpg 768w, https:\/\/botland.store\/blog\/wp-content\/uploads\/2024\/04\/10776_1_kwadrat.jpg 1080w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Sonometer, Benetech GM1351 decibel meter - from 30 to 130dBA.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a6a3444 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"a6a3444\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/botland.com.pl\/mierniki-pozostale\/10776-sonometr-decybelomierz-benetech-gm1351-od-30-do-130dba-5903738810468.html\" target=\"_blank\" data-wpel-link=\"internal\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">CHECK<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-5ad5bb5 elementor-widget elementor-widget-heading\" data-id=\"5ad5bb5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">How does the sonometer work?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9bd66e5 elementor-widget elementor-widget-text-editor\" data-id=\"9bd66e5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong><br \/>\n  <a href=\"https:\/\/botland.com.pl\/581-mierniki-pozostale\" data-wpel-link=\"internal\">Sonometers<\/a><br \/>\n<\/strong> are devices used to measure sound levels. The sonometer includes a microphone to capture sound, a transducer to convert the acoustic signal to electrical, and electronics to process and display the results. They are an absolute must-have in monitoring machine noise, in environmental protection for assessing the impact of noise on ecosystems, or in scientific research for analyzing the acoustic characteristics of different areas. Step by step it works like this:<\/p>\n<ol style=\"font-size: 16px; background-color: #ffffff;\">\n<li style=\"font-size: 16px;\">The microphone &#8220;collects&#8221; the vibrations of air molecules (sound waves) for conversion into an electrical signal. A transmitter is needed for this.<\/li>\n<li style=\"font-size: 16px;\">The transducer converts the acoustic signal from the microphone into an electrical signal that can be further processed by the sonometer&#8217;s electronics. It can be a microphone capsule, in which a vibrating diaphragm generates changes in the magnetic field, which induces an electric current.<\/li>\n<li style=\"font-size: 16px;\">Electronic circuits process the electrical signal from the microphone by performing operations such as signal amplification, filtering and processing in the time or frequency domain. They are necessary to adjust and shape the signal so that it can be properly interpreted and used to measure sound levels.<\/li>\n<li style=\"font-size: 16px;\">The sound level meter reads the processed signal and presents the results in units of decibels (dB).<\/li>\n<li style=\"font-size: 16px;\">Separately: the sonometer calibrator regularly checks the accuracy of the measurements, while the power supply is provided by batteries or other energy sources.<\/li>\n<\/ol>\n<p>Let&#8217;s stop at point 3. These electronics include an operational amplifier to tune the microphone signal level, circuitry to filter out noise and to focus on specific frequency bands, and <a href=\"https:\/\/botland.com.pl\/412-przetworniki-ac-i-ca\" data-wpel-link=\"internal\">analog-to-digital converters<\/a> (ADCs), which are important when the sonometer has digital recording capabilities. One could also mention a signal processor for advanced audio signal processing, such as spectrum analysis, and user interface elements that vary from model to model, but essentially mean similar elements such as clear circuits that display measurement results.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fb44752 elementor-widget elementor-widget-heading\" data-id=\"fb44752\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Everyday Sonometers<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f7ac70d elementor-widget elementor-widget-text-editor\" data-id=\"f7ac70d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Perhaps the closest sphere to widespread use is industry and health and safety. Prolonged exposure to high sound levels can lead to permanent hearing damage, such as hearing loss or tinnitus. Workers exposed to noise without proper hearing protection are susceptible to such conditions. Excessive noise contributes to occupational accidents, affects workers&#8217; ability to focus attention and respond quickly to emergencies. Existing regulations in line with European Union directives in this area require employers to monitor noise levels, assess the risks of exposure and take measures to reduce that exposure, such as providing hearing protection tools.<\/p>\n<p>In large urban areas, sonometers are used to monitor overall noise levels in various areas of the city. This helps identify areas that may require action to improve the quality of the sound environment. Combined with our favorite <a style=\"background-color: #ffffff;\" href=\"https:\/\/botland.com.pl\/234-arduino\" data-wpel-link=\"internal\">Arduino<\/a> and <a style=\"background-color: #ffffff;\" href=\"https:\/\/botland.com.pl\/399-raspberry-pi\" data-wpel-link=\"internal\">Raspberry Pi<\/a> platforms, interactive art projects, home applications close to smart home and basing the operation of lighting or ventilation precisely on the basis of noise levels, or educational projects are becoming increasingly popular, making it much easier to enter the world of programming and data analysis.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2c81c60 elementor-widget elementor-widget-heading\" data-id=\"2c81c60\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Sonometer - what to pay attention to?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-435640a elementor-widget elementor-widget-text-editor\" data-id=\"435640a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>There are no devices free of limitations and defects. The factors to look out for are mainly calibration and accuracy, without which there are no precise results. Sonometers are sometimes susceptible to interference from the environment, such as sounds from other sources or the influence of wind, and from here they are also close to false readings. An important parameter is frequency response, which means that the sonometer is more sensitive to certain sound frequency ranges than to others. Use the sonometer as much as possible, limiting interaction with other equipment (not part of a common design, of course) and try to eliminate vibrations and mechanical oscillations. You can achieve this through stable mounting, mechanical isolation or anti-vibration stands known from recording studios and laboratories. Special algorithms and tools in advanced sonometers are also being developed to help correct measurement results.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Key in the context of safety and health, environmental protection and scientific research, sound measurements are carried out for us by clever sonometers. Let&#8217;s take a look at how they work<\/p>\n","protected":false},"author":21,"featured_media":79052,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[7,179],"tags":[],"class_list":["post-79079","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-elektronika","category-kompendium"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Sonometer - what is it and what is it used for? - Botland<\/title>\n<meta name=\"description\" content=\"Explore the world of technology with Botland Blog and the Botland store, where innovation becomes inspiration!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/botland.store\/blog\/sonometer-what-is-it-and-what-is-it-used-for\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sonometer - what is it and what is it used for? 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