{"id":935,"date":"2020-03-11T16:48:45","date_gmt":"2020-03-11T16:48:45","guid":{"rendered":"http:\/\/mp4gain.com\/mp4gain\/?p=935"},"modified":"2020-03-11T16:48:45","modified_gmt":"2020-03-11T16:48:45","slug":"how-an-mp3-compresses-music","status":"publish","type":"post","link":"https:\/\/mp4gain.com\/mp4gain\/how-an-mp3-compresses-music\/","title":{"rendered":"How an MP3 compresses music"},"content":{"rendered":"<p>We all know that MP3 was the audio format that quickly became popular and the main reason is because it took up much less space than the WAV format that has no compression and therefore was very difficult to transfer via internet from one computer to another.<\/p>\n<p>And then it was when the MP3 made its appearance because it had a very good sound and yet it took between 7 and 10 times less space than the original file.<\/p>\n<p>We all know that this caused people to easily exchange music files online and this changed even the way the music industry works thereafter.<\/p>\n<p>But although we all know that MP3 takes up less space, it is very few people who understand that in the first place in MP3 what it does is compress the music. But it also uses some other procedures to make music take up less disk space, Today we will briefly explain how this mp3 performs this compression.<\/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\/how-an-mp3-compresses-music\/#Remove_inaudible_sounds\" >Remove inaudible sounds<\/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\/how-an-mp3-compresses-music\/#Eliminate_redundancy\" >Eliminate redundancy<\/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\/how-an-mp3-compresses-music\/#Sound_masking\" >Sound masking<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Remove_inaudible_sounds\"><\/span>Remove inaudible sounds<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>One of the first things MP3 does is to analyze the music file and eliminate all those frequencies that are not audible to the human ear but nevertheless occupy a space in the original file. Then the MP3 saves a lot of space without losing quality by eliminating sound frequencies that the human ear cannot hear.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Eliminate_redundancy\"><\/span>Eliminate redundancy<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Another of the mechanics that is used for an mp3 saves space is to eliminate redundant sounds. And with that we understand sounds that sound very similar and basically occupy the same Soundtracks. Therefore, the ear will only perceive some. And then the MP3 eliminates those redundant sounds that will not be heard by the human ear.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Sound_masking\"><\/span>Sound masking<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a href=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/03\/mp3-audio-masking.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-932\" src=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/03\/mp3-audio-masking-300x187.png\" alt=\"\" width=\"300\" height=\"187\" srcset=\"https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/03\/mp3-audio-masking-300x187.png 300w, https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/03\/mp3-audio-masking.png 500w\" sizes=\"auto, (max-width: 300px) 85vw, 300px\" \/><\/a><\/p>\n<p>Acoustics and audio specialists have long discovered that when the human ear perceives more than one sound simultaneously it is very likely that one of them masks the others.<\/p>\n<p>The Sound perception produces that when a person perceives 2 sounds of different intensity at the same time the weakest sound, with less volume, is inaudible to the one who is listening. This, as we indicated earlier, is what is called the sound perception and the MP3 is based a lot on the sound perception to be able to eliminate sounds under this principle of sound masking.<\/p>\n<p>In other words, in MP3 you decide which sound will mask others and then eliminate these others.<\/p>\n<p>It should be noted that when one decides if the MP3 encodes at 128 kilo bytes per second or at 320 kbs it is modifying the amount of sounds that will be eliminated in the masking. Well, at 320 to eliminate very few sounds and as I lowered the number of kbs it will eliminate more sounds which the person can produce if he can distinguish a difference between the original audio file and the encoded file.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>We all know that MP3 was the audio format that quickly became popular and the main reason is because it took up much less space than the WAV format that has no compression and therefore was very difficult to transfer via internet from one computer to another. And then it was when the MP3 made &hellip; <a href=\"https:\/\/mp4gain.com\/mp4gain\/how-an-mp3-compresses-music\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;How an MP3 compresses music&#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":[25206,25176,25167,25175,25178,18843,25179,25188,25191,25209,25214,25230,18845,18846,25207,18856,18855,25205,25217,18854,18861,18869,18860,18853,18852,25164,18850,18868,18866,25198,25190,25189,25163,25227,25166,25169,25158,25154,25159,25157,25162,25160,25210,25165,25168,25171,25177,25183,25184,25180,25182,25181,25192,25195,25194,25193,18851,25199,25153,25233,25208,25213,25150,25151,25170,25211,25219,25155,25187,25222,25220,25218,25221,25223,25156,25152,25224,25225,25231,25161,25172,25174,25173,25216,25186,25185,25196,25201,25200,25212,18844,25202,25229,25204,25197,25232,25215,18867,25228,25226,25203],"class_list":["post-935","post","type-post","status-publish","format-standard","hentry","category-audio-normalizer","tag-advantages-of-mp3-compression","tag-albion-kompression-mp3-download","tag-best-mp3-compression","tag-compress-mp3-downloads","tag-compression-en-mp3","tag-compression-in-mp3","tag-compression-mp3-en-ligne","tag-compression-mp3-gratuit","tag-compression-mp3-itunes","tag-compression-mp3-principe","tag-compression-mp3-qualite","tag-compression-mp3-youtube","tag-compression-of-mp3","tag-compression-of-mp3-files","tag-disadvantages-of-mp3-compression","tag-does-mp3-include-compression","tag-does-mp3-use-compression","tag-file-compress-mp3-online","tag-flac-vs-mp3-compression-ratio","tag-how-does-mp3-compression-work","tag-how-is-mp3-compression-done","tag-how-mp3-compression","tag-how-mp3-compression-works","tag-how-much-can-mp3-compression","tag-how-much-can-mp3-compression-percentage","tag-is-a-mp3-compression","tag-is-mp3-compression-lossy-or-lossless","tag-is-mp3-lossless-compression","tag-is-mp3-lossy-compression","tag-lame-mp3-compression","tag-logiciel-compression-mp3-gratuit","tag-logiciel-de-compression-mp3-gratuit-en-francais","tag-mp3-audio-compression","tag-mp3-audio-compression-standard-with-block-diagram","tag-mp3-bit-compression","tag-mp3-cd-compression","tag-mp3-compression-advantages-and-disadvantages","tag-mp3-compression-algorithm","tag-mp3-compression-app","tag-mp3-compression-artifacts","tag-mp3-compression-artifacts-example","tag-mp3-compression-audacity","tag-mp3-compression-avec-perte","tag-mp3-compression-bass","tag-mp3-compression-comparison","tag-mp3-compression-definition","tag-mp3-compression-effect","tag-mp3-compression-file-formats","tag-mp3-compression-files","tag-mp3-compression-format","tag-mp3-compression-free","tag-mp3-compression-frequencies","tag-mp3-compression-level","tag-mp3-compression-limit","tag-mp3-compression-lossless","tag-mp3-compression-lossy","tag-mp3-compression-lossy-or-lossless","tag-mp3-compression-mac","tag-mp3-compression-online","tag-mp3-compression-percentage","tag-mp3-compression-python","tag-mp3-compression-quality","tag-mp3-compression-rate","tag-mp3-compression-ratio","tag-mp3-compression-ratio-calculator","tag-mp3-compression-sans-perte","tag-mp3-compression-size","tag-mp3-compression-software","tag-mp3-compression-software-free","tag-mp3-compression-song","tag-mp3-compression-sound","tag-mp3-compression-standard","tag-mp3-compression-system","tag-mp3-compression-technology","tag-mp3-compression-tool","tag-mp3-compression-type","tag-mp3-compression-vst","tag-mp3-compression-wiki","tag-mp3-compression-zip","tag-mp3-compressor-apk","tag-mp3-data-compression","tag-mp3-data-compression-lossy","tag-mp3-digital-compression","tag-mp3-dynamic-range-compression","tag-mp3-file-compression-rate","tag-mp3-file-compression-type","tag-mp3-lossy-compression-rate","tag-mp3-m4a-compression","tag-mp3-max-compression","tag-mp3-structure-compression-pdf","tag-mp3-type-of-compression","tag-mp3-vs-mp4-compression-ratio","tag-mp3-wav-compression","tag-online-mp3-compressor-software","tag-sound-mp3-lossy-compression","tag-taux-de-compression-mp3-500","tag-wav-to-mp3-compression-ratio","tag-why-is-mp3-compression-used","tag-windows-10-compressed-mp3","tag-windows-compressed-mp3","tag-youtube-to-mp3-no-compression"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - 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And then it was when the MP3 made &hellip; Continue reading &quot;How an MP3 compresses music&quot;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mp4gain.com\/mp4gain\/how-an-mp3-compresses-music\/\" \/>\n<meta property=\"og:site_name\" content=\"mp4gain.com\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/mp4gain\" \/>\n<meta property=\"article:published_time\" content=\"2020-03-11T16:48:45+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/03\/mp3-audio-masking-300x187.png\" \/>\n<meta name=\"author\" content=\"R. Arias\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@mp4gain\" \/>\n<meta name=\"twitter:site\" content=\"@mp4gain\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"R. 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Arias\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/secure.gravatar.com\/avatar\/8ca03263e87418cfde07c571c83fa172297ce230085e4f181b9e5f9af745d6be?s=96&d=blank&r=g\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/8ca03263e87418cfde07c571c83fa172297ce230085e4f181b9e5f9af745d6be?s=96&d=blank&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/8ca03263e87418cfde07c571c83fa172297ce230085e4f181b9e5f9af745d6be?s=96&d=blank&r=g\",\"caption\":\"R. Arias\"},\"description\":\"R. Arias is the author of this article and has extensive experience for more than 30 years as a recording engineer and audio specialist, as well as more than 20 years of experience creating algorithms related to audio and video. 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