{"id":465,"date":"2019-09-13T18:26:27","date_gmt":"2019-09-13T18:26:27","guid":{"rendered":"http:\/\/mp4gain.com\/mp4gain\/?p=465"},"modified":"2019-09-13T18:26:27","modified_gmt":"2019-09-13T18:26:27","slug":"what-is-a-decibel-understanding-decibels","status":"publish","type":"post","link":"https:\/\/mp4gain.com\/mp4gain\/what-is-a-decibel-understanding-decibels\/","title":{"rendered":"What is a decibel? &#8211; Understanding decibels"},"content":{"rendered":"<p>The decibel (dB) is a unit that is used to measure the intensity of sound and other physical quantities. A decibel is the tenth part of a bel (B), a unit named after Graham Bell, the inventor of the telephone. Its logarithmic scale is adequate to represent the auditory spectrum of the human being.<\/p>\n<p><a href=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/09\/decibel-level.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-466\" src=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/09\/decibel-level-300x150.jpg\" alt=\"decibels\" width=\"300\" height=\"150\" srcset=\"https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/09\/decibel-level-300x150.jpg 300w, https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/09\/decibel-level.jpg 688w\" sizes=\"auto, (max-width: 300px) 85vw, 300px\" \/><\/a><\/p>\n<p>The decibel of the sound pressure level (dB SPL) takes as reference the lowest sound pressure level that the average human ear can detect. The lowest audible sound for humans is typically 0 dB SPL (hearing threshold). In practice, &#8220;dB&#8221; often means &#8220;dB SPL.&#8221;<\/p>\n<p>The decibel scale is logarithmic, so a three-decibel increase in the sound level already represents a doubling of the noise intensity. For example, a normal conversation can be approximately 65 dB and, generally, a shout is 80 dB. The difference is only 15 dB, but the scream is 30 times more intense.<\/p>\n<p>Keep in mind that intensity is not exactly the same as sound pressure level. In order to take into account the fact that the human ear perceives especially serious or acute sounds as less intense, noise is usually measured in decibels with weighting A (dB (A)).<\/p>\n<p>Plus:<br \/>\nIt is not only intensity that determines whether noise is dangerous; The duration of exposure is also very important. To take this aspect into account, weighted average sound levels are used depending on their duration. In the case of noise in the workplace, this duration is usually that of an eight-hour work day.<\/p>\n<p><a href=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/09\/decibel_stoplight-229x300.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-467\" src=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/09\/decibel_stoplight-229x300-229x300.jpg\" alt=\"decibels\" width=\"229\" height=\"300\" \/><\/a><\/p>\n<p>All this may sound very technical or complicated, but the reality is that many people frequently use 0 dB to normalize their mp3s, without understanding exactly what a dB is.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_81 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><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><\/span><\/a><\/span><\/div>\n<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:\/\/mp4gain.com\/mp4gain\/what-is-a-decibel-understanding-decibels\/#How_is_the_volume_of_music_measured\" >How is the volume of music measured?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/mp4gain.com\/mp4gain\/what-is-a-decibel-understanding-decibels\/#How_are_decibels_measured_in_music\" >How are decibels measured in music?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/mp4gain.com\/mp4gain\/what-is-a-decibel-understanding-decibels\/#What_is_a_dB_in_audio\" >What is a dB in audio?<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"How_is_the_volume_of_music_measured\"><\/span>How is the volume of music measured?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The volume is the sound perception that the human being has of the power of a certain sound. As the volume perception follows a logarithmic scale, the volume level is measured in decibels and is given by the so-called acoustic power level.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_are_decibels_measured_in_music\"><\/span>How are decibels measured in music?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>In daily use, decibels are used to measure the volume of a sound. A decibel is a logarithmic unit in base 10, which means that if you raise the volume of a sound to 10 decibels, that sound will be twice as loud as the &#8220;base&#8221; sound.<\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_is_a_dB_in_audio\"><\/span>What is a dB in audio?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The decibel (dB) is a unit that is used to measure the intensity of sound and other physical quantities. A decibel is the tenth part of a bel (B), a unit named after Graham Bell, the inventor of the telephone. Its logarithmic scale is adequate to represent the auditory spectrum of the human being.<\/p>\n<p><em><strong>The thing to keep in mind is that in digital audio, going from 0dB generates saturation since that is the maximum limit and the wave is quadratized. Which means that it loses its natural curvature, to take the form of &#8220;a step&#8221; which takes away quality. Exactly as an image when it is pixelated.<\/strong><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The decibel (dB) is a unit that is used to measure the intensity of sound and other physical quantities. A decibel is the tenth part of a bel (B), a unit named after Graham Bell, the inventor of the telephone. Its logarithmic scale is adequate to represent the auditory spectrum of the human being. The &hellip; <a href=\"https:\/\/mp4gain.com\/mp4gain\/what-is-a-decibel-understanding-decibels\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;What is a decibel? &#8211; Understanding decibels&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[481,3],"tags":[9884,9847,9846,9843,9844,9848,9845,9851,9850,9849,9852,9866,9883,9882,9881,9880,9916,9835,9841,9839,9838,9837,9842,9836,9840,9867,9863,9859,9854,9858,9857,9862,9856,9861,9855,9860,9853,9877,9879,9878,9886,9874,9870,9873,9875,9871,9872,9876,9898,9897,9900,9896,9903,9905,9902,9904,9901,9899,9891,9887,9888,9893,9889,9894,9831,9895,9890,9892,9920,9921,9924,9919,9923,9912,9911,9908,9907,9913,9909,9914,9906,9910,9934,9926,9925,9933,9928,9932,9930,9931,9927,9929,9954,9949,9944,9953,9950,9945,9947,9948,9946,9951,9952,9958,9962,9959,9957,9964,9960,9961,9965,9963,9974,9968,9969,9967,9971,9972,9970,9973,9975,9976,9987,9994,9993,9988,9991,9995,9992,9989,9990,10007,10006,10003,9997,9998,10005,10002,10001,9999,10000,10004,10023,10025,10030,10024,10028,10029,10014,10013,10019,9833,10017,10020,10015,10016,10018,10041,9830,10031,10033,10035,9827,9829,10032,10036,10034,10046,10048,10047,10052,10049,10051,10050,9834,9828,9832,9918,9922,9869,9885,10045,9941,9936,9940,9942,9938,9935,9939,9937,9943,9915,9955,9956,10042,9966,9986,9983,9982,9977,9985,9980,9981,9984,9978,9979,9996,10011,10012,10010,10021,10022,10027,10026,9868,10043,10044,10037,10038,10039,10040,10008,10009,9864,9865,9917],"class_list":["post-465","post","type-post","status-publish","format-standard","hentry","category-mp3-normalizer-2","category-mp4gain","tag-a-and-c-decibel-frequency-weighting-scales","tag-a-decibel-chart","tag-a-decibel-hell-reading-answers","tag-a-decibel-is-a-measure-of-a-sounds","tag-a-decibel-is-a-unit-used-to-measure-the","tag-a-decibel-is-defined-in-terms-of","tag-a-decibel-meter","tag-a-decibel-rating","tag-a-decibel-reader","tag-a-decibel-scale","tag-a-decibel-unit","tag-bt-vp9-decibels","tag-c-series-decibels","tag-c-sound-decibel","tag-c-weighted-decibels-definition","tag-c-130-decibels","tag-cuffie-e-decibel","tag-decibel-abbreviation","tag-decibel-acronym","tag-decibel-addition","tag-decibel-alarm","tag-decibel-anagram","tag-decibel-analytics","tag-decibel-apartments","tag-decibel-app-for-iphone","tag-decibel-b","tag-decibel-b-weighting","tag-decibel-band","tag-decibel-bar","tag-decibel-bar-milwaukie","tag-decibel-beer-and-metal-fest","tag-decibel-beer-and-metal-fest-2019","tag-decibel-blue","tag-decibel-booster","tag-decibel-boston","tag-decibel-brand","tag-decibel-brewing","tag-decibel-c","tag-decibel-c-scale","tag-decibel-c-weighting","tag-decibel-cest-quoi","tag-decibel-chart-osha","tag-decibel-clothing","tag-decibel-club","tag-decibel-company","tag-decibel-comparison-chart","tag-decibel-conversion","tag-decibel-counter","tag-decibel-d-o-o","tag-decibel-dun-avion","tag-decibel-dun-avion-au-decollage","tag-decibel-dun-coup-de-feu","tag-decibel-dun-frigo","tag-decibel-dun-marteau-piqueur","tag-decibel-dun-ventilateur","tag-decibel-dune-climatisation","tag-decibel-dune-conversation","tag-decibel-dune-voiture","tag-decibel-damage","tag-decibel-db","tag-decibel-dba","tag-decibel-def","tag-decibel-defense","tag-decibel-define","tag-decibel-definition","tag-decibel-definition-physics","tag-decibel-detector","tag-decibel-dishwasher","tag-decibel-e-bel","tag-decibel-e-distanza","tag-decibel-e-frequenza","tag-decibel-e-hertz","tag-decibel-e-logaritmi","tag-decibel-ear-damage","tag-decibel-ear-plugs","tag-decibel-east-village","tag-decibel-electronics","tag-decibel-electronics-camera","tag-decibel-eleven","tag-decibel-entertainment","tag-decibel-equation","tag-decibel-equivalents","tag-decibel-f","tag-decibel-farms","tag-decibel-festival","tag-decibel-festival-2019-seattle","tag-decibel-festival-seattle","tag-decibel-films","tag-decibel-flexi","tag-decibel-for-baby","tag-decibel-for-dishwasher","tag-decibel-for-hearing-damage","tag-decibel-g-tank-top","tag-decibel-gain","tag-decibel-gardens","tag-decibel-gardens-orange-tree","tag-decibel-gauge","tag-decibel-geek","tag-decibel-geek-podcast","tag-decibel-generator","tag-decibel-graph","tag-decibel-guide","tag-decibel-guitars","tag-decibel-h78","tag-decibel-hall-of-fame","tag-decibel-headphones","tag-decibel-hearing","tag-decibel-hearing-aid-reviews","tag-decibel-hearing-damage","tag-decibel-hearing-loss","tag-decibel-hearing-loss-chart","tag-decibel-hearing-test","tag-decibel-in-a-sentence","tag-decibel-in-spanish","tag-decibel-increase","tag-decibel-insight","tag-decibel-insight-boston","tag-decibel-insight-glassdoor","tag-decibel-intensity","tag-decibel-intensity-equation","tag-decibel-is-a-unit-of","tag-decibel-isotropic","tag-decibel-jacket","tag-decibel-jackhammer","tag-decibel-jean-shorts","tag-decibel-jet-engine","tag-decibel-jidenna","tag-decibel-jobs","tag-decibel-joggers","tag-decibel-jon-sakoda","tag-decibel-jones","tag-decibel-k","tag-decibel-kaarten","tag-decibel-kerala","tag-decibel-kershaw","tag-decibel-killer","tag-decibel-killer-car","tag-deci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