{"id":5950,"date":"2024-01-17T16:20:03","date_gmt":"2024-01-17T14:20:03","guid":{"rendered":"https:\/\/vertia.fi\/?page_id=5950"},"modified":"2025-07-03T09:20:40","modified_gmt":"2025-07-03T06:20:40","slug":"aanimittaus","status":"publish","type":"page","link":"https:\/\/vertia.fi\/en\/aanimittaus\/","title":{"rendered":"Sound measurement"},"content":{"rendered":"<p><iframe loading=\"lazy\" title=\"Sound Measurement | Vertia - Ensuring Quality of Living\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/W99WOeQ4sr0?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<h2>Sound measurement, or acoustic measurement<\/h2>\n<p>Good acoustics promote well-being, communication, and performance at home and in the workplace. Sound measurements are conducted in new construction and renovation projects to ensure quality and to identify any potential noise issues.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-6461 size-medium\" src=\"https:\/\/vertia.fi\/wp-content\/uploads\/2024\/10\/aanimittaus-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/vertia.fi\/wp-content\/uploads\/2024\/10\/aanimittaus-300x225.jpg 300w, https:\/\/vertia.fi\/wp-content\/uploads\/2024\/10\/aanimittaus-1024x768.jpg 1024w, https:\/\/vertia.fi\/wp-content\/uploads\/2024\/10\/aanimittaus-768x576.jpg 768w, https:\/\/vertia.fi\/wp-content\/uploads\/2024\/10\/aanimittaus-1536x1152.jpg 1536w, https:\/\/vertia.fi\/wp-content\/uploads\/2024\/10\/aanimittaus-2048x1536.jpg 2048w, https:\/\/vertia.fi\/wp-content\/uploads\/2024\/10\/aanimittaus-285x214.jpg 285w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<h2>Airborne sound insulation<\/h2>\n<p>Airborne sound insulation testing determines the sound insulation performance of structures separating rooms with respect to airborne sound. This is typically done between adjacent rooms, apartments, or hallways. A loudspeaker is placed in one room, and the sound is measured from the other room. The resulting sound level difference, DnT,w (dB), indicates the airborne sound insulation between the rooms.<\/p>\n<p>Read more: <a href=\"https:\/\/vertia.fi\/en\/ilmaaaneneristavyys-ja-aanitasoeroluku\/\">Airborne sound insulation and sound reduction index<\/a><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-5956\" src=\"https:\/\/vertia.fi\/wp-content\/uploads\/2024\/01\/image-2-300x196.png\" alt=\"\" width=\"300\" height=\"196\" srcset=\"https:\/\/vertia.fi\/wp-content\/uploads\/2024\/01\/image-2-300x196.png 300w, https:\/\/vertia.fi\/wp-content\/uploads\/2024\/01\/image-2-768x502.png 768w, https:\/\/vertia.fi\/wp-content\/uploads\/2024\/01\/image-2.png 953w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<h2>Impact sound insulation<\/h2>\n<p>Impact sound insulation measurements are typically used to determine the impact sound insulation between rooms located one above the other. A standardized impact sound tester, specifically designed for this purpose, is placed in the upper room; this device uses small hammers to produce a tapping sound on the floor. This sound is measured from the other room. The resulting impact sound level L\u2019nT,w (dB) indicates the transmission of impact sound between the rooms.<\/p>\n<p>Read more: <a href=\"https:\/\/vertia.fi\/en\/askelaaneneristavyys-ja-askelaanitasoluku\/\">Impact sound insulation and impact sound index<\/a><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-6285 size-medium\" src=\"https:\/\/vertia.fi\/wp-content\/uploads\/2024\/05\/2024-01-29-12.41.24-300x226.jpg\" alt=\"\" width=\"300\" height=\"226\" srcset=\"https:\/\/vertia.fi\/wp-content\/uploads\/2024\/05\/2024-01-29-12.41.24-300x226.jpg 300w, https:\/\/vertia.fi\/wp-content\/uploads\/2024\/05\/2024-01-29-12.41.24-1024x771.jpg 1024w, https:\/\/vertia.fi\/wp-content\/uploads\/2024\/05\/2024-01-29-12.41.24-768x578.jpg 768w, https:\/\/vertia.fi\/wp-content\/uploads\/2024\/05\/2024-01-29-12.41.24-1536x1157.jpg 1536w, https:\/\/vertia.fi\/wp-content\/uploads\/2024\/05\/2024-01-29-12.41.24-2048x1542.jpg 2048w, https:\/\/vertia.fi\/wp-content\/uploads\/2024\/05\/2024-01-29-12.41.24-285x214.jpg 285w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<h2>Reverberation time<\/h2>\n<p><span style=\"font-weight: 400;\">Reverberation is measured by emitting a loud sound from a loudspeaker, interrupting it, and measuring the decay of the sound. The resulting reverberation time, T, indicates the reverberation characteristics of the space. Reverberation is measured in accordance with the SFS-EN ISO 3382-2 standard.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-5954\" src=\"https:\/\/vertia.fi\/wp-content\/uploads\/2024\/01\/Nayttokuva-2024-01-17-163719-300x259.png\" alt=\"\" width=\"300\" height=\"259\" srcset=\"https:\/\/vertia.fi\/wp-content\/uploads\/2024\/01\/Nayttokuva-2024-01-17-163719-300x259.png 300w, https:\/\/vertia.fi\/wp-content\/uploads\/2024\/01\/Nayttokuva-2024-01-17-163719-768x663.png 768w, https:\/\/vertia.fi\/wp-content\/uploads\/2024\/01\/Nayttokuva-2024-01-17-163719.png 928w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<h2>Sound insulation of the facade or balconies<\/h2>\n<p><span style=\"font-weight: 400;\">The sound insulation of a facade or balconies can be measured in various ways, either using a loudspeaker or traffic noise. The loudspeaker method determines \u0394L (dB), the sound insulation of the facade\u2014that is, the noise-reducing effect of the facade\u2014 which is compared to regulatory requirements. Another method is to record actual road traffic noise, e.g., during the day, at night, or over 24 hours (L_Aeq). Ultimately, these methods aim to measure the same thing, but in slightly different ways, and therefore there may be slight differences in the results.<\/span><\/p>\n<h3>HVAC acceptance measurements, average sound level of room ventilation<\/h3>\n<p><span style=\"font-weight: 400;\">HVAC acceptance tests often measure the equivalent sound level L_Aeq (and the maximum sound level L_AFMax) of ventilation in rooms.<\/span><\/p>\n<h2>Noise measurement<\/h2>\n<p><span style=\"font-weight: 400;\">Noise measurements are conducted as outdoor noise measurements, equipment noise measurements, or daytime or nighttime measurements. The choice of measurement method is always determined on a case-by-case basis, as there are various standards and guidelines governing noise measurements. Examples of different types of measurements, which are nevertheless related to one another, are described below.<\/span><\/p>\n<h3>Equipment noise<\/h3>\n<p><span style=\"font-weight: 400;\">Equipment noise measurements can be performed on various types of equipment. When measuring outdoors, the term \u201cenvironmental noise\u201d is often used, and the measurement method is slightly different (see the section on environmental noise or outdoor noise). The measurement method varies slightly depending on the device, but typically the measurement itself is relatively quick and is performed by moving between measurement points within a room while the device isand off. The measurement can be performed, for example, at the garage door, heating equipment, cooling equipment, or ventilation. A typical measurement is, for example, noise from heating equipment entering an apartment adjacent to or above the heat distribution room. The measurement is performed as a quality assurance check, particularly during the installation of geothermal heating systems, first on the old heating equipmentand finally on the new geothermal heating system, with the aim of demonstrating that the noise level has not deteriorated as a result of the renovation (in addition, airborne sound insulation can be measured for planning purposes).<\/span><\/p>\n<h3>Environmental noise or outdoor noise<\/h3>\n<p><span style=\"font-weight: 400;\">Environmental noise can be measured, for example, at the property line, with the aim generally being to measure the noise generated by a piece of equipment or an industrial facility in outdoor areas (cf. equipment noise). The results are usually compared with the requirements of an environmental permit or a government decision.<\/span><\/p>\n<h3>Noise at night or other continuous noise<\/h3>\n<p><span style=\"font-weight: 400;\">Assessing nighttime noise requires a long measurement period that spans the entire night. A preliminary measurement can be taken over a shorter period. The need for measurement usually arises from the noise experienced by residents while sleeping. The measurement is usually taken near the spot where the sleeper\u2019s head would have been while sleeping. In the same way, daytime noise in rooms can also be measured. Sounds travel through a space as sound waves, so the results vary at different measurement points, and for this reason, measurements are often taken from the location where potential disturbing noise is perceived.<\/span><\/p>\n<p><a class=\"btn btn-primary custom-button green-btn\" style=\"margin-left: 0px;\" href=\"tel:+358447700400\">Call 044-7700-400<\/a> <a class=\"btn btn-primary custom-button yellow-btn\" style=\"margin-left: 0px;\" href=\"\/en\/yhteystiedot\/yhteydenottolomake\/\">Contact us<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>\u00c4\u00e4nimittaus eli akustiikkamittaus Hyv\u00e4 akustiikka edist\u00e4\u00e4 hyvinvointia, kommunikaatiota ja suorituskyky\u00e4 kotona ja ty\u00f6paikoilla. \u00c4\u00e4nimittauksia tehd\u00e4\u00e4n uudisrakentamisessa ja korjausrakentamisessa laadunvarmistuksena sek\u00e4 mahdollisten meluongelmien selvitt\u00e4miseksi. Ilma\u00e4\u00e4nenerist\u00e4vyys Ilma\u00e4\u00e4nenerist\u00e4vyysmittauksessa selvitet\u00e4\u00e4n huonetilojen v\u00e4listen rakenteiden \u00e4\u00e4nenerist\u00e4vyys ilmassa kulkevien \u00e4\u00e4nien osalta. Tyypillisesti viereisten huoneiden, asuntojen tai k\u00e4yt\u00e4v\u00e4n kesken. Toiseen tilaan asetetaan kaiutin ja sit\u00e4 mitataan toisesta tilasta. Tuloksena saatava \u00e4\u00e4nitasoeroluku DnT,w (dB) <a href=\"https:\/\/vertia.fi\/en\/aanimittaus\/\" rel=\"nofollow\"><span class=\"sr-only\">Read more about \u00c4\u00e4nimittaus<\/span>[&#8230;]<\/a><\/p>\n","protected":false},"author":2,"featured_media":6461,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"templates\/services-pro.php","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-5950","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u00c4\u00e4nimittaus | Vertia.fi<\/title>\n<meta name=\"description\" content=\"\u00c4\u00e4nimittauspalvelut ovat olennainen osa modernia ty\u00f6maiden meluhallintaa. 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