{"id":1213,"date":"2020-05-08T12:08:57","date_gmt":"2020-05-08T12:08:57","guid":{"rendered":"http:\/\/mp4gain.com\/mp4gain\/?p=1213"},"modified":"2020-05-08T12:08:57","modified_gmt":"2020-05-08T12:08:57","slug":"mp3-everything-you-need-to-know-about-mp3","status":"publish","type":"post","link":"https:\/\/mp4gain.com\/mp4gain\/mp3-everything-you-need-to-know-about-mp3\/","title":{"rendered":"MP3 &#8211; Everything you need to know about mp3"},"content":{"rendered":"<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 ' ><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/mp4gain.com\/mp4gain\/mp3-everything-you-need-to-know-about-mp3\/#MP3_%E2%80%93_Everything_you_need_to_know_about_mp3\" >MP3 &#8211; Everything you need to know about mp3<\/a><\/li><\/ul><\/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\/mp3-everything-you-need-to-know-about-mp3\/#The_magic_of_the_MP3_format\" >The magic of the MP3 format.<\/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\/mp3-everything-you-need-to-know-about-mp3\/#How_mp3_compression_occurs\" >How mp3 compression occurs.<\/a><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"MP3_%E2%80%93_Everything_you_need_to_know_about_mp3\"><\/span>MP3 &#8211; Everything you need to know about mp3<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The phenomenon of MP3 has revolutionized the Internet world, which has not been the same since then.<br \/>\nNever before have you seen a format that reduces an audio file from 40Mb to 4.<br \/>\nTruth be told, there was something similar, but the quality was not comparable to that<br \/>\nthat the mp3 could achieve. But how the heck does this popular format called MP3 work?<br \/>\nThis technology caused record companies to lose billions and save tens<br \/>\n(hundreds) of euros for us users?<\/p>\n<p><a href=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/05\/mp3-format-1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1214\" src=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/05\/mp3-format-1.png\" alt=\"mp3 format\" width=\"512\" height=\"512\" srcset=\"https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/05\/mp3-format-1.png 512w, https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/05\/mp3-format-1-150x150.png 150w, https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/05\/mp3-format-1-300x300.png 300w\" sizes=\"auto, (max-width: 512px) 85vw, 512px\" \/><\/a><\/p>\n<h2><span class=\"ez-toc-section\" id=\"The_magic_of_the_MP3_format\"><\/span>\n<p>The magic of the MP3 format.<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Well, most of this &#8220;magic&#8221; resides in a science called psychoacoustics and a series of<br \/>\nvery complicated mathematical calculations.<br \/>\nUncompressed audio and CD audio store more data than our brains<br \/>\ncan process and perceive. For example, if two notes are very similar and are together, your brain<br \/>\nyou will receive only one of these. If there is a strong and weak sound, your brain will hear the loudest.<br \/>\nthen your brain will not be able to hear the smallest sound.<br \/>\nThe study of these phenomena and our perception of sound is called psychoacoustics.<br \/>\nMP3 compression technology analyzes sound and breaks it up, comparing it to models<br \/>\nsound included in the compressor itself. Will remove most mismatched sounds<br \/>\nto sound patterns and will keep the ones that match.<\/p>\n<p><a href=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/05\/how-mp3-works.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1215\" src=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/05\/how-mp3-works.gif\" alt=\"how mp3 works\" width=\"400\" height=\"300\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>The person performing the compression can specify the number of bits to be assigned to each<br \/>\nmusic second: the higher the number of bits and the less data will be deleted; with some bits in place<br \/>\nMore sounds will have to be erased.<br \/>\nThis type of compression is called lossy or lossy compression.<br \/>\nMP3 files are made up of a series of very short frames, as in the video, and<br \/>\nEach box is preceded by the header, which contains additional information about the data to come.<br \/>\nAt the beginning or end of an MP3 file there is additional information about the file, such as the artist name,<br \/>\nTrack title, album, year, genre and comments: This information is called ID3 data (tag).<\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_mp3_compression_occurs\"><\/span>\nHow mp3 compression occurs.<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>As is known, the MP3 format eliminates what the human ear cannot hear.<br \/>\nThese sounds are removed but there is a small part to not return<br \/>\n&#8220;drastic&#8221; cut.<br \/>\nBut this is only part of the techniques used for compression &#8230; first:<br \/>\nthe signal is analyzed and a decision is made on how to distribute the available bits, after which it is divided<br \/>\nin sub-bands, processed separately by algorithms.<br \/>\nThe available bit rate is calculated, obtaining the number of bits that will be assigned to each frame.<br \/>\nThis procedure determines how much audio will be kept and how much will be cut instead.<br \/>\nThe frequencies of each frame are compared with the psychoacoustic models contained in the<br \/>\ncompressor. From these models, it is determined which frequencies to elaborate with precision,<br \/>\nas perceived by human ear, and which can be partially removed or cut,<br \/>\nsince we won&#8217;t be able to hear them anyway. Why save what is not needed?<br \/>\nThen the masking effects come into play: if there is a loud sound and a sound<br \/>\nweak it is possible to eliminate the latter, calculating the milliseconds during which it will not be audible.<br \/>\nSimilarly, two overlapping sounds (due to intense intensity) or static parts of the sound.<br \/>\n(silence, whisper of sound) are cleverly masked.<br \/>\nBitrates<\/p>\n<p>How the sound chunks are removed also depends on the bit rate set by the user in<br \/>\nCompression moment. The bit rate corresponds to the number of bits per second used for the<br \/>\nfile storage The higher the bitrate, the higher the resolution of the sound.<br \/>\nImagine a movie: with multiple frames, the image will be fluid, in the same way at a bit rate<br \/>\ngreater will correspond to a more complete sound, faithful to the original.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>MP3 &#8211; Everything you need to know about mp3 The phenomenon of MP3 has revolutionized the Internet world, which has not been the same since then. Never before have you seen a format that reduces an audio file from 40Mb to 4. Truth be told, there was something similar, but the quality was not comparable &hellip; <a href=\"https:\/\/mp4gain.com\/mp4gain\/mp3-everything-you-need-to-know-about-mp3\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;MP3 &#8211; Everything you need to know about mp3&#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":[11590,9192,11594,11596,11591,11592,9194,11611,11612,11610,11605,11604,9175,9179,9184,22391,9187,9188,11599,29983,11620,11617,11618,11619,29985,11629,11631,11627,11630,11589,29986,11602,11597,29829,9166,9167,22264,9174,29833,29832,29726,22336,9169,9168,9181,9182,9193,9171,9180,9172,29830,9170,9186,29988,11600,29831,9183,9191,11603,29990,29982,11607,11608,29991,11628,11625,11626,29984,11614,11615,29989,29987,11634,29992,11639,11636,29994,29993,11640,11635,11641],"class_list":["post-1213","post","type-post","status-publish","format-standard","hentry","category-audio-normalizer","tag-are-itunes-in-mp3-format","tag-audio-format-mp3-vs-m4a","tag-can-iphone-play-mp3-format","tag-can-itunes-convert-to-mp3-format","tag-can-mp3-format-be-burned-to-a-cd","tag-cant-format-mp3-player","tag-convert-vinyl-to-mp3-format-without-a-computer","tag-does-iphone-play-mp3-format","tag-does-itunes-download-in-mp3-format","tag-does-itunes-play-mp3-format","tag-does-mp3-format-work-cd-player","tag-does-mp3-format-work-on-iphone","tag-format-before-mp3","tag-format-into-mp3","tag-format-mp3-to-audio","tag-format-mp3-to-cda","tag-format-mp3-vs-aac","tag-format-mp3-vs-m4a","tag-formatowanie-do-mp3","tag-how-does-mp3-format-work","tag-how-to-change-mp3-format","tag-how-to-download-mp3-format-from-youtube","tag-how-to-format-mp3-player","tag-how-to-format-mp3-player-on-mac","tag-how-to-mp3-format-music","tag-is-amazon-music-mp3-format","tag-is-apple-music-mp3-format","tag-is-itunes-mp3-format","tag-is-mp3-a-video-format","tag-is-mp3-format","tag-is-spotify-mp3-format","tag-konwersja-do-formatu-mp3","tag-mp3-format-can-be","tag-mp3-format-for-audible","tag-mp3-format-for-car-usb","tag-mp3-format-for-iphone","tag-mp3-format-for-itunes","tag-mp3-format-from-youtube","tag-mp3-format-in-itunes","tag-mp3-format-invented-by","tag-mp3-format-invented-by-country","tag-mp3-format-of","tag-mp3-format-of-audio","tag-mp3-format-on-cd","tag-mp3-format-on-iphone","tag-mp3-format-on-itunes","tag-mp3-format-sound-vs-mp3","tag-mp3-format-to-cd","tag-mp3-format-to-midi","tag-mp3-format-to-mp4","tag-mp3-format-to-video","tag-mp3-format-to-wav","tag-mp3-format-vs-cd","tag-mp3-format-was-invented-by-country","tag-mp3-formato-do-arquivo","tag-mp3-from-format","tag-mp3-pro-format","tag-mp3-vs-format","tag-program-do-formatowania-mp3","tag-was-ist-mp3-format","tag-what-does-mp3-format-do","tag-what-does-mp3-format-mean","tag-what-does-mp3-format-sound-mean","tag-what-file-format-mp3","tag-what-is-mp3-format-cd","tag-what-is-mp3-format-mean","tag-what-is-mp3-format-sound","tag-what-mp3-format","tag-what-mp3-format-is-best","tag-what-mp3-format-is-itunes","tag-when-was-mp3-file-format-created","tag-when-was-mp3-format-created","tag-when-was-mp3-format-invented","tag-which-country-mp3-audio-format-was-invented-by","tag-which-mp3-format-is-best","tag-which-mp3-format-is-best-quality","tag-who-created-mp3-file-format","tag-who-created-mp3-format","tag-who-invented-mp3-format","tag-why-was-the-mp3-format-significant","tag-will-mp3-format-play-on-a-cd-player"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>MP3 - Everything you need to know about mp3 - mp4gain.com<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mp4gain.com\/mp4gain\/mp3-everything-you-need-to-know-about-mp3\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"MP3 - Everything you need to know about mp3 - mp4gain.com\" \/>\n<meta property=\"og:description\" content=\"MP3 &#8211; Everything you need to know about mp3 The phenomenon of MP3 has revolutionized the Internet world, which has not been the same since then. Never before have you seen a format that reduces an audio file from 40Mb to 4. Truth be told, there was something similar, but the quality was not comparable &hellip; Continue reading &quot;MP3 &#8211; Everything you need to know about mp3&quot;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mp4gain.com\/mp4gain\/mp3-everything-you-need-to-know-about-mp3\/\" \/>\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=\"2020-05-08T12:08:57+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/05\/mp3-format-1.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. Arias\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/mp4gain.com\/mp4gain\/mp3-everything-you-need-to-know-about-mp3\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/mp4gain.com\/mp4gain\/mp3-everything-you-need-to-know-about-mp3\/\"},\"author\":{\"name\":\"R. 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Everything you need to know about mp3\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/mp4gain.com\/mp4gain\/#website\",\"url\":\"https:\/\/mp4gain.com\/mp4gain\/\",\"name\":\"mp4gain.com\",\"description\":\"Mp4 Gain Official Website\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/mp4gain.com\/mp4gain\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/mp4gain.com\/mp4gain\/#\/schema\/person\/36ffddda9988e565bd4a9013324ce2cc\",\"name\":\"R. 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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