{"id":1679,"date":"2021-10-21T05:52:49","date_gmt":"2021-10-21T05:52:49","guid":{"rendered":"https:\/\/www.soundenvironment.jp\/?page_id=1679"},"modified":"2021-11-22T09:58:32","modified_gmt":"2021-11-22T09:58:32","slug":"develop","status":"publish","type":"page","link":"https:\/\/www.soundenvironment.jp\/en\/projects\/develop\/","title":{"rendered":"Want to Measure the Noise of the Developed Product?"},"content":{"rendered":"\n<h2>[Acoustic System] Design, Manufacturing and Construction of Acoustic Measurement Space<\/h2>\n\n<p>Our company is mainly engaged in design, manufacturing and construction of acoustic measurement space for a laboratory and factory.<\/p>\n\n<p>For acoustic measurement of a product and abnormal sound inspection, we consistently carry out the calculation of the range of free sound field establishment in an anechoic chamber, the design of sound insulation and sound absorption according to the measurement environment, the control of low-frequency noise from investigation, analysis to measurement and performance assurance.<\/p>\n\n<p>Besides, our commodities are basically non-combustible and relocated( assembly type) and we propose a space according to R&#038;D and meet the needs of the industries and research institutions, rather than using the general building structures such as concrete enclosures and wooden structures. We guarantee the \u201csound insulation performance\u201d, \u201csound reduction effect\u201d, \u201cmeasurable range\u201d of each facility.<\/p>\n\n<ul>\n<li>(1) sound insulation performance: we will verify the transmission loss of equipment based on the measurement of JIS A 1417 : \u201cAir Sound Insulation Performance Measurement Method\u201d.<\/li>\n<li>(2) sound reduction effect: we will verify the noise level of the actual using measurement environment(background noise) through measuring equipment.<\/li>\n<li>(3) measurable range: verify the range where the square inverse law holds in an anechoic room by measuring each measurement distance.<\/li>\n<\/ul>\n\n<h3>Overview of Acoustic System<\/h3>\n\n<table class=\"tableSmall\">\n\t<tr>\n\t\t<th>Sound source<\/th>\n\t\t<td>Precision instruments, household appliance, engines, communicators, control device, drive components, microscope noise, etc.<\/td>\n\t<\/tr>\n\t<tr>\n\t\t<th>Application<\/th>\n\t\t<td>Product development, abnormal sound inspection, acoustic measurement, environmental measurement, etc<\/td>\n\t<\/tr>\n\t<tr>\n\t\t<th>Measurement device<\/th>\n\t\t<td>FFT analyzer, general noise meter, precise noise meter, OCT filter, environmental measurement equipment, etc.<\/td>\n\t<\/tr>\n\t<tr>\n\t\t<th>Measures<\/th>\n\t\t<td>Anechoic chamber, soundproof inspection room, anechoic box, acoustic measurement box, reverberation room, etc.<\/td>\n\t<\/tr>\n<\/table>\n\n    <p class=\"bttt clr\"><a href=\"#Main_ttl_area\">Back to top \u25b2<\/a><\/p>\n<h3>Examples of Acoustic System<\/h3>\n<div class=\"threeClm\">\n<div><img src=\"https:\/\/www.soundenvironment.jp\/wp-content\/uploads\/2020\/08\/onkyo_1.jpg\" alt=\"soundproofing inspection room for AFM\"><p class=\"caption\">soundproofing inspection room for AFM<\/p><\/div>\n<div><img src=\"https:\/\/www.soundenvironment.jp\/wp-content\/uploads\/2020\/08\/onkyo_2.jpg\" alt=\"semi-circular birdcage microphone stand : for semi-anechoic rooms\"><p class=\"caption\">semi-circular birdcage microphone stand : for semi-anechoic rooms<\/p><\/div>\n<div><img src=\"https:\/\/www.soundenvironment.jp\/wp-content\/uploads\/2020\/08\/onkyo_3.jpg\" alt=\"soundproofing inspection room for wind tunnel experiments\"><p class=\"caption\">soundproofing inspection room for wind tunnel experiments<\/p><\/div>\n<div><img src=\"https:\/\/www.soundenvironment.jp\/wp-content\/uploads\/2020\/08\/onkyo_4.jpg\" alt=\"sound insulation test room with constant temperature function: for built-in integrated experiment\"><p class=\"caption\">sound insulation test room with constant temperature function: for built-in integrated experiment<\/p><\/div>\n<div><img src=\"https:\/\/www.soundenvironment.jp\/wp-content\/uploads\/2020\/08\/onkyo_5.jpg\" alt=\"auto-door soundproof inspection box\"><p class=\"caption\">auto-door soundproof inspection box<\/p><\/div>\n<div><img src=\"https:\/\/www.soundenvironment.jp\/wp-content\/uploads\/2020\/08\/onkyo_6.jpg\" alt=\"sliding-door anechoic box: for overseas export\"><p class=\"caption\">sliding-door anechoic box: for overseas export<\/p><\/div>\n<\/div>\n\n    <p class=\"bttt clr\"><a href=\"#Main_ttl_area\">Back to top \u25b2<\/a><\/p>\n<h3>About Guarantee of Sound Insulation Performance and Sound Reduction Effect<\/h3>\n<p>Regarding the implementation of the acoustic system\u201cacoustic measurement\u201d, we guarantee and predict the sound reduction effect, soundproof performance and sound absorption performance( measurable range) after countermeasures.<\/p>\n\n<h4>(1) Guarantee of sound insulation performance<\/h4>\n<p>After setting the guaranteed value of soundproof performance (transmission loss) of the equipment, use a common noise meter or a precise noise meter, a speaker and an octave filter according to our company\u2019s 1-1 standard sound insulation measurement method or JIA 14:2000 to measure the actual value of the equipment. We\u2019ll submit a  report on the test results of sound insulation measurement after verifying and confirming the guaranteed value.<\/p>\n<h4>(2) Guarantee of sound reduction effect<\/h4>\n<p>We\u2019ll guarantee the actual value of \u201c how many decibels the noise level in question will be\u201d by sound insulation equipment. Before and after carrying out noise countermeasures, measuring and verifying the noise level of multiple setting points.<\/p>\n<h4>(3) Guarantee of sound absorption performance<\/h4>\n<p>We\u2019ll guarantee the \u201crange of establishment of reverse square law\u201d in an anechoic room. Using (deviation of ISO-3745 reverse square characteristic) inverse square measurement group( directional speaker, wire, noise meter, etc.) to verify the setting guarantee value + &#8211; allowable range, and submit the report as results of the measurable range measurement.<\/p>\n<h5>Submission of Report<\/h5>\n<ul>\n<li>set the noise data of a specified place(frequency analysis value)<\/li>\n<li>the guarantee value of sound insulation, the predicted value of sound insulation<\/li>\n<li>the guarantee value and predicted value of the noise level after installation<\/li>\n<li>the measurement test results of sound insulation and measuring methods after installation<\/li>\n<li>guarantee value of the range( measurable range) where the inverse square law holds<\/li>\n<li>measurement report of the range (measurable range) where the inverse square law holds<\/li>\n<\/ul>\n<h4>The Reason of Performance Guarantee<\/h4>\n<p>Of course, it is no point investing so much money for something whose actual sound reduction effect, sound insulation performance and sound absorption are uncertain. Guarantee performance means taking risks, and I think it\u2019s a natural obligation for sound insulation companies. Our company will firmly carry out the setting of guarantee value strictly. If the value is lower than guaranteed value, secondary strategies will be taken to make it back to guaranteed value.<\/p>\n<h4>Different Recording Methods of Sound Insulation Performance<\/h4>\n<table>\n<tr><th>(1) The guarantee value of sound insulation performance<\/th><td>Sound insulation performance guaranteed by manufacture<\/td><\/tr>\n<tr><th>(2) The actual value of sound insulation performance<\/th><td>Sound insulation performance measured actually<\/td><\/tr>\n<tr><th>(3) The predicted value of sound insulation performance<\/th><td>Sound insulation performance predicted to put into play<\/td><\/tr>\n<tr><th>(4) The specification value of sound insulation performance<\/th><td>Sound insulation performance that can put into play<\/td><\/tr>\n<tr><th>(5) Sound insulation performance performance<\/th><td>Any of the above 1\uff5e4 is unknown<\/td><\/tr>\n<\/table>\n<p>Sound insulation performance and sound insulation value are roughly divided into the above 5 categories, the actual performance may be very different depending on the projects. To use the analogy of a car\u2019s fuel consumption, it is the difference between the catalog value and the actual fuel consumption. Therefore, it\u2019s necessary to clarify the performance classification before the equipment is introduced, which leads to the result of the introduction.<\/p>\n<h4>Layman<\/h4>\n<p>There are many sound insulation companies at present, but most of them, with some exceptions, can not guarantee the performance of the equipment and do not inspect before and after installation. And some companies only provide laboratory measurement data (sound insulation grade values) using soundproof building materials such as Dr-40, Dr-50. <\/p>\n    <p class=\"bttt clr\"><a href=\"#Main_ttl_area\">Back to top \u25b2<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"[Acoustic System] Design, Manufacturing and Construction of Acoustic Measurement Space Our company is mainly engaged in design, manufacturing and construction of acoustic measurement space for a laboratory and factory. For acoustic measurement of a product and abnormal sound inspection, we consistently carry out the calculation of the range of free sound field establishment in an&#8230;","protected":false},"author":1,"featured_media":0,"parent":1677,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_locale":"en_US","_original_post":"http:\/\/119.82.26.41\/?page_id=113"},"acf":[],"_links":{"self":[{"href":"https:\/\/www.soundenvironment.jp\/wp-json\/wp\/v2\/pages\/1679"}],"collection":[{"href":"https:\/\/www.soundenvironment.jp\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.soundenvironment.jp\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.soundenvironment.jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.soundenvironment.jp\/wp-json\/wp\/v2\/comments?post=1679"}],"version-history":[{"count":8,"href":"https:\/\/www.soundenvironment.jp\/wp-json\/wp\/v2\/pages\/1679\/revisions"}],"predecessor-version":[{"id":1895,"href":"https:\/\/www.soundenvironment.jp\/wp-json\/wp\/v2\/pages\/1679\/revisions\/1895"}],"up":[{"embeddable":true,"href":"https:\/\/www.soundenvironment.jp\/wp-json\/wp\/v2\/pages\/1677"}],"wp:attachment":[{"href":"https:\/\/www.soundenvironment.jp\/wp-json\/wp\/v2\/media?parent=1679"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}