{"id":676,"date":"2019-10-18T23:44:38","date_gmt":"2019-10-18T23:44:38","guid":{"rendered":"http:\/\/mp4gain.com\/mp4gain\/?p=676"},"modified":"2019-10-18T23:44:38","modified_gmt":"2019-10-18T23:44:38","slug":"what-does-decibel-and-frequency-mean","status":"publish","type":"post","link":"https:\/\/mp4gain.com\/mp4gain\/what-does-decibel-and-frequency-mean\/","title":{"rendered":"What does decibel and frequency mean?"},"content":{"rendered":"<p>Decibels (dB) and frequency are terms used to describe the sound levels and the number of cycles of a sound wave in a second.<\/p>\n<p><a href=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/10\/DECIBEL-SCALE.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-677\" src=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/10\/DECIBEL-SCALE-300x207.png\" alt=\"decibels scale\" width=\"300\" height=\"207\" srcset=\"https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/10\/DECIBEL-SCALE-300x207.png 300w, https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/10\/DECIBEL-SCALE-768x530.png 768w, https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/10\/DECIBEL-SCALE.png 800w\" sizes=\"auto, (max-width: 300px) 85vw, 300px\" \/><\/a><\/p>\n<p>To get a clear idea of \u200b\u200bthe technical words that describe the facts about hearing impairment and noise, we have compiled the basic data on dB and frequency.<\/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-does-decibel-and-frequency-mean\/#Frequency\" >Frequency<\/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-does-decibel-and-frequency-mean\/#Decibel_dB\" >Decibel (dB)<\/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-does-decibel-and-frequency-mean\/#What_are_decibels\" >What are decibels?<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Frequency\"><\/span>Frequency<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The frequency of a sound is the number of cycles of a sound wave in a second. The unit of measurement is hertz (Hz). The frequency of a sound increases as the number of cycles per second increases. Vibrations between 20 and 20,000 cycles per second are interpreted as the sound a healthy person hears. A high pitched sound could be a piccolo or the song of a bird. The bass sounds could be the sound of distant thunder or the tones of a bass.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Decibel_dB\"><\/span>Decibel (dB)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The term dB (decibel) and the dB scale are used worldwide to measure sound levels. The decibel scale is a logarithmic scale in which twice the sound pressure corresponds to an increase in the level of 6 dB.<\/p>\n<p><a href=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/10\/7_Noise_Level_By_Decibles600.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-678\" src=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/10\/7_Noise_Level_By_Decibles600-300x275.jpg\" alt=\"decibels noise levels\" width=\"300\" height=\"275\" srcset=\"https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/10\/7_Noise_Level_By_Decibles600-300x275.jpg 300w, https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/10\/7_Noise_Level_By_Decibles600.jpg 600w\" sizes=\"auto, (max-width: 300px) 85vw, 300px\" \/><\/a><\/p>\n<p>It is very important to understand that the term &#8216;dB&#8217; can have different meanings and that it is not a fixed value such as volt or meter, etc. The value of a dB depends on the context in which it is used.<\/p>\n<p>Below you will find examples of different sound intensities expressed in dB (HL):<\/p>\n<p>180 dB: Rocket on takeoff<br \/>\n140 dB: Engine of a jet plane when taking off<br \/>\n120 dB: Rock band<br \/>\n110 dB: Strong thunder<br \/>\n90 dB: Traffic in the city<br \/>\n80 dB: The radio at a high volume<br \/>\n60 dB: Normal conversation<br \/>\n30 dB: Soft whisper<br \/>\n0 dB: The lowest sound that a person perceives<\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_are_decibels\"><\/span>What are decibels?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>They are a unit of measurement that allows to establish the power of the noise.<\/p>\n<p>The hearing threshold is 0 decibels and the pain threshold is approximately 120.<\/p>\n<p>The noise level is measured in decibels (dB), a sound unit equivalent to one tenth of the Bell, a measure of sound power that expresses the difference between two sounds whose intensities are in a ratio of 10 to 1.<\/p>\n<p>The decibel is a mathematical relationship of the logarithmic type where if a noise increases 3 dB, it means that the perceived sound energy is doubled.<\/p>\n<p>The hearing threshold is at 0 dB, and the pain threshold is around 120 dB. However, the ear does not respond equally to all frequencies of a noise, that is, we hear certain sounds better than others depending on their frequency.<\/p>\n<p>For this reason the decibel A (dBA) was defined, a unit of sound level measured with a previous filter that removes part of the low and very high frequencies. Thus, before the measurement, only the most harmful sounds for the ear are preserved, which is why the exposure measured in dBA is a good indicator of auditory risk.<\/p>\n<p>The weakest sound that a healthy ear can hear or detect has an amplitude of a twentieth millionth of a Pascal, something like 5,000,000,000 times less than normal atmospheric pressure. It is considered that no more than 30 decibels should be registered so that a person can sleep well, while 120 decibels constitute the threshold of the bearable<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Decibels (dB) and frequency are terms used to describe the sound levels and the number of cycles of a sound wave in a second. To get a clear idea of \u200b\u200bthe technical words that describe the facts about hearing impairment and noise, we have compiled the basic data on dB and frequency. Frequency The frequency &hellip; <a href=\"https:\/\/mp4gain.com\/mp4gain\/what-does-decibel-and-frequency-mean\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;What does decibel and frequency mean?&#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":[257],"tags":[16768,16811,16809,16805,16810,16798,16806,16808,16807,16801,16820,16815,16822,16816,16823,16824,16817,16819,16818,16821,16830,16833,16797,16831,16826,16829,16827,16832,16825,16828,16838,16834,16841,16835,16839,16843,16837,16836,16842,16840,16849,16846,16844,16851,16847,16850,16848,16845,16795,16800,16804,16802,16796,16799,16803,9866,9883,16790,9881,9880,16762,16763,16767,16760,16765,16761,16764,16766,16759,16749,16757,16756,16753,16755,16752,16754,16758,16751,16769,16774,16770,16777,16772,16773,16771,16778,16775,16776,16789,16792,16781,16786,16788,16744,16787,16780,16784,16782,16783,16785,16793,16794,16743,16748,16746,16745,16750,16747,16779,16791,16812,16813,16814,9865],"class_list":["post-676","post","type-post","status-publish","format-standard","hentry","category-audio-normalizer","tag-a-weighted-decibels-meaning","tag-an-audio-frequency-generator","tag-audio-frequency-age-test","tag-audio-frequency-amplifier","tag-audio-frequency-analysis-online","tag-audio-frequency-analyzer","tag-audio-frequency-analyzer-app","tag-audio-frequency-analyzer-chip","tag-audio-frequency-analyzer-software","tag-audio-frequency-app","tag-audio-frequency-band-pass-filter","tag-audio-frequency-bands","tag-audio-frequency-bands-chart","tag-audio-frequency-bandwidth","tag-audio-frequency-brain","tag-audio-frequency-breakdown","tag-audio-frequency-bulldog","tag-audio-frequency-bulldog-speaker","tag-audio-frequency-bulldog-wireless-bluetooth-speaker","tag-audio-frequency-by-age","tag-audio-frequency-calculator","tag-audio-frequency-changer","tag-audio-frequency-chart","tag-audio-frequency-chart-pdf","tag-audio-frequency-choke","tag-audio-frequency-conducted-susceptibility","tag-audio-frequency-converter","tag-audio-frequency-converter-online","tag-audio-frequency-counter","tag-audio-frequency-counter-app","tag-audio-frequency-decoder","tag-audio-frequency-definition","tag-audio-frequency-detection","tag-audio-frequency-detector","tag-audio-frequency-detector-app","tag-audio-frequency-detector-online","tag-audio-frequency-distribution","tag-audio-frequency-divider","tag-audio-frequency-divider-circuit","tag-audio-frequency-doubler","tag-audio-frequency-ear-test","tag-audio-frequency-ear-training","tag-audio-frequency-editor","tag-audio-frequency-effects","tag-audio-frequency-electric-amplifiers","tag-audio-frequency-equalizer","tag-audio-frequency-examples","tag-audio-frequency-explained","tag-audio-frequency-generator","tag-audio-frequency-meter","tag-audio-frequency-range","tag-audio-frequency-signal-generator","tag-audio-frequency-spectrum","tag-audio-frequency-test","tag-audio-frequency-trainer","tag-bt-vp9-decibels","tag-c-series-decibels","tag-c-weighted-decibels","tag-c-weighted-decibels-definition","tag-c-130-decibels","tag-decibels-a-b-c","tag-decibels-a-b-c-z","tag-decibels-a-computer","tag-decibels-a-human-can-hear","tag-decibels-a-megahertz","tag-decibels-a-scale","tag-decibels-a-sones","tag-decibels-a-watt","tag-decibels-a-weighted","tag-decibels-abbreviation","tag-decibels-amplitude","tag-decibels-and-distance","tag-decibels-and-hearing-loss","tag-decibels-and-intensity","tag-decibels-are-a-measure-of","tag-decibels-are-used-to-measure","tag-decibels-at-a-rock-concert","tag-decibels-audiology","tag-decibels-baby","tag-decibels-baby-crying","tag-decibels-baby-hearing","tag-decibels-baby-white-noise","tag-decibels-bad-for-hearing","tag-decibels-balloon-popping","tag-decibels-band","tag-decibels-bangalore","tag-decibels-before-hearing-damage","tag-decibels-bosch-dishwasher","tag-decibels-c","tag-decibels-c-est-quoi","tag-decibels-calculator","tag-decibels-car-audio-cottonwood-az","tag-decibels-chainsaw","tag-decibels-chart","tag-decibels-checker","tag-decibels-comparison","tag-decibels-concert","tag-decibels-conversion","tag-decibels-cottonwood","tag-decibels-custom-audio-video","tag-decibels-db","tag-decibels-dba","tag-decibels-definition","tag-decibels-hearing-loss","tag-decibels-measure","tag-decibels-scale","tag-decibels-to-hertz","tag-decibels-to-watts","tag-delonghi-ecam22-110-b-decibels","tag-les-decibels-cest-pas-sorcier","tag-the-audio-frequency-range-is","tag-the-audio-frequency-range-lies-between","tag-the-frequency-audio-signal","tag-thunder-b-decibels"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What does decibel and frequency mean? 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