{"id":1044,"date":"2020-04-01T01:27:13","date_gmt":"2020-04-01T01:27:13","guid":{"rendered":"http:\/\/mp4gain.com\/mp4gain\/?p=1044"},"modified":"2020-04-01T01:27:13","modified_gmt":"2020-04-01T01:27:13","slug":"formats-extensions-and-codecs-what-do-they-mean","status":"publish","type":"post","link":"https:\/\/mp4gain.com\/mp4gain\/formats-extensions-and-codecs-what-do-they-mean\/","title":{"rendered":"Formats, extensions and codecs: what do they mean?"},"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\/formats-extensions-and-codecs-what-do-they-mean\/#Formats_extensions_and_codecs_what_do_they_mean\" >Formats, extensions and codecs: what do they mean?<\/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\/formats-extensions-and-codecs-what-do-they-mean\/#Uncompressed_files\" >Uncompressed files<\/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\/formats-extensions-and-codecs-what-do-they-mean\/#Compressed_files\" >Compressed files<\/a><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"Formats_extensions_and_codecs_what_do_they_mean\"><\/span>Formats, extensions and codecs: what do they mean?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>When it comes to audio files, we can talk about formats, extensions and codecs. In summary, we can say that the format refers to the type of file, identified by its extension (* .mp3, * .wav, * .ogg, * .wma etc), which often tells us how it has been encoded or which one is your codec.<\/p>\n<p><a href=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/04\/Audio-1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1045\" src=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/04\/Audio-1.jpg\" alt=\"\" width=\"415\" height=\"175\" srcset=\"https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/04\/Audio-1.jpg 415w, https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/04\/Audio-1-300x127.jpg 300w\" sizes=\"auto, (max-width: 415px) 85vw, 415px\" \/><\/a><\/p>\n<p>Normally those endings are mixed. But what is important to know is that, as in videos, files with the same type of extension do not always have the same codec and vice versa.<\/p>\n<p>This information is valid so that you do not feel lost in case you do not understand the reason why a software, which normally plays your * .m4a files, does not play another with the same extension, for example.<\/p>\n<p>Such a situation could indicate that the codecs used are different. In that case, the solution would be to use other software to read the file or to convert it (new encoding). This can be done even in video editors.<\/p>\n<p>The variations of formats and codecs depend on the options of the companies that develop the softwares that execute the files. In these cases, there are many things at stake, such as technical specifications and relations with patents.<\/p>\n<p><a href=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/11\/CODEC.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-708\" src=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/11\/CODEC.jpg\" alt=\"\" width=\"500\" height=\"500\" srcset=\"https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/11\/CODEC.jpg 500w, https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/11\/CODEC-150x150.jpg 150w, https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2019\/11\/CODEC-300x300.jpg 300w\" sizes=\"auto, (max-width: 500px) 85vw, 500px\" \/><\/a><\/p>\n<p>On the other hand, files are usually divided into two types: uncompressed or compressed.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Uncompressed_files\"><\/span>Uncompressed files<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Audio recording equipment usually offers us options to record files without losing any information. These uncompressed files can be generated in various formats and extensions, such as WAV, AIFF, FLAC and ALAC. For those who are familiar with photography, they are equivalent to RAW or DNG.<\/p>\n<p>As they are usually very heavy, using lossless formats in the final product is only recommended in some cases, such as:<\/p>\n<p>when the final product can be processed by the consumer (files destined for sound banks, for example);<br \/>\nwhen there will be recording on physical media (CD, DVD and Blue-Ray);<br \/>\nor for the audiophile market (for a matter of perceived value and guarantee of high quality).<br \/>\nBut, even if you don&#8217;t want to end the process with a WAV (one of the most common), lossless formats can be very useful at the editing stage. Because they contain a lot of information, they withstand more extreme alterations without harming the audio quality.<\/p>\n<p>With plugins, conversions and processing, they can be manipulated more freely, guaranteeing excellent quality, even if a compressed file is subsequently generated.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Compressed_files\"><\/span>Compressed files<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Most of the equipment available on the market (cameras, cell phones and even audio recorders) usually deliver already compressed files. This type of file is more practical, easier to process, requires less storage space and is very small (in bytes).<\/p>\n<p>Some examples of these formats are: 3GP, AAC, M4A, OGG, WMA and MP3, which is, without a doubt, the best known. Files are like JPEG or GIF in the images field.<\/p>\n<p>Through a complex algorithm, these files are generated seeking to keep only relevant information for our ears. Depending on the compression mode, we can generate an MP3 from a WAV and have a file 10 times smaller, without perceptible alterations in audio quality.<\/p>\n<p>Speaking of MP3, despite its great popularity, it is currently considered an obsolete format, since others, such as ACC (extension .acc or .m4a), make it possible to obtain smaller files and with higher quality.<\/p>\n<p>Even so, MP3 is still widely used, since a large part of the softwares and equipment were developed for this format. So, to talk about compression rates, we will use it as an example.<\/p>\n<p>Compression rate: what is its relationship to audio quality?<br \/>\nNow that you understand that a file can be compressed and maintain sufficient quality for our ears, you should know that the level of compression can vary greatly.<\/p>\n<p>And it is by the value of the compression rate (or bitrate) that we manage to control the file size and, therefore, the audio quality.<\/p>\n<p>For example, a 320 kbps (kilobits per second) MP3 may sound as good as uncompressed audio from a CD or DVD. As the bitrate value decreases, the file size decreases, but the sound losses become noticeable, depending on the audio.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Formats, extensions and codecs: what do they mean? When it comes to audio files, we can talk about formats, extensions and codecs. In summary, we can say that the format refers to the type of file, identified by its extension (* .mp3, * .wav, * .ogg, * .wma etc), which often tells us how it &hellip; <a href=\"https:\/\/mp4gain.com\/mp4gain\/formats-extensions-and-codecs-what-do-they-mean\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Formats, extensions and codecs: what do they 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":[26909],"tags":[27364,27391,27419,27404,27369,27368,27372,27376,27384,27386,27388,27387,27393,27392,27398,27401,27403,27407,27420,27413,27396,27383,27400,27363,27365,27412,27370,27402,27367,27371,27375,27380,27394,27399,27406,27408,27411,27414,27373,27378,27382,27381,27374,27385,27397,27410,27409,27416,27415,27366,27379,27417,27389,27390,27395,8665,27418,19483,27377,23666,13713,27362,27405],"class_list":["post-1044","post","type-post","status-publish","format-standard","hentry","category-codec","tag-audio-codecs-formats","tag-codec-for-mp4","tag-codec-for-video","tag-codec-format","tag-codec-format-audio","tag-codec-format-avi","tag-codec-format-converter","tag-codec-format-editor","tag-codec-format-for-android","tag-codec-format-json","tag-codec-format-mkv","tag-codec-format-mp4","tag-codec-format-nedir","tag-codec-format-not-supported","tag-codec-format-of-video","tag-codec-format-player","tag-codec-format-support","tag-codec-format-ts","tag-codec-format-video","tag-codec-format-video-mp4","tag-codec-not-supported","tag-codec-format-filebeat","tag-codecs-format-python","tag-compression-formats-codecs","tag-ffmpeg-formats-codecs","tag-format-and-codec","tag-format-audio-codec-aac","tag-format-codec","tag-format-codec-audio-pcm","tag-format-codec-container","tag-format-codec-error","tag-format-codec-for-broadcast","tag-format-codec-non-supporte","tag-format-codec-pack","tag-format-codec-tv","tag-format-codec-unterschied","tag-format-codec-video","tag-format-codec-wav","tag-format-conteneur-codec","tag-format-enregistrement-codec","tag-format-factory-codec-pack","tag-format-factory-codecs","tag-format-factory-codecs-download","tag-format-file-codec","tag-format-or-codec","tag-format-und-codec","tag-format-undf-codec","tag-format-x264-codec","tag-format_waveformatex-codec-download","tag-formats-and-codecs","tag-formats-et-codecs","tag-is-codec-format","tag-mp4-video-codec","tag-mp4-video-codecs","tag-not-supported-video-codec","tag-video-codec-for-mp4","tag-video-codec-format","tag-video-formats-and-codecs","tag-video-formats-and-codecs-explained","tag-video-formats-codecs","tag-video-formats-codecs-and-containers","tag-video-formats-codecs-and-containers-explained","tag-what-is-codec-format"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Formats, extensions and codecs: what do they mean? - mp4gain.com<\/title>\n<meta name=\"description\" content=\"When it comes to audio files, we can talk about formats, extensions and codecs. 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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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In summary, we can say that the format refers to the type of file, identified by its extension (* .mp3, * .wav, * .ogg, * .wma etc), which often tells us how it has been encoded or which one is your codec.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/mp4gain.com\/mp4gain\/formats-extensions-and-codecs-what-do-they-mean\/","og_locale":"en_US","og_type":"article","og_title":"Formats, extensions and codecs: what do they mean? - mp4gain.com","og_description":"When it comes to audio files, we can talk about formats, extensions and codecs. In summary, we can say that the format refers to the type of file, identified by its extension (* .mp3, * .wav, * .ogg, * .wma etc), which often tells us how it has been encoded or which one is your codec.","og_url":"https:\/\/mp4gain.com\/mp4gain\/formats-extensions-and-codecs-what-do-they-mean\/","og_site_name":"mp4gain.com","article_publisher":"https:\/\/www.facebook.com\/mp4gain","article_published_time":"2020-04-01T01:27:13+00:00","og_image":[{"url":"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/04\/Audio-1.jpg","type":"","width":"","height":""}],"author":"R. Arias","twitter_card":"summary_large_image","twitter_creator":"@mp4gain","twitter_site":"@mp4gain","twitter_misc":{"Written by":"R. Arias","Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/mp4gain.com\/mp4gain\/formats-extensions-and-codecs-what-do-they-mean\/#article","isPartOf":{"@id":"https:\/\/mp4gain.com\/mp4gain\/formats-extensions-and-codecs-what-do-they-mean\/"},"author":{"name":"R. Arias","@id":"https:\/\/mp4gain.com\/mp4gain\/#\/schema\/person\/36ffddda9988e565bd4a9013324ce2cc"},"headline":"Formats, extensions and codecs: what do they mean?","datePublished":"2020-04-01T01:27:13+00:00","mainEntityOfPage":{"@id":"https:\/\/mp4gain.com\/mp4gain\/formats-extensions-and-codecs-what-do-they-mean\/"},"wordCount":700,"image":{"@id":"https:\/\/mp4gain.com\/mp4gain\/formats-extensions-and-codecs-what-do-they-mean\/#primaryimage"},"thumbnailUrl":"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/04\/Audio-1.jpg","keywords":["audio codecs formats","codec for mp4","codec for video","codec format","codec format audio","codec format avi","codec format converter","codec format editor","codec format for android","codec format json","codec format mkv","codec format mp4","codec format nedir","codec format not supported","codec format of video","codec format player","codec format support","codec format ts","codec format video","codec format video mp4","codec not supported","codec.format filebeat","codecs format python","compression formats codecs","ffmpeg formats codecs","format and codec","format audio codec aac","format codec","format codec audio pcm","format codec container","format codec error","format codec for broadcast","format codec non support\u00e9","format codec pack","format codec tv","format codec unterschied","format codec video","format codec wav","format conteneur codec","format enregistrement codec","format factory codec pack","format factory codecs","format factory codecs download","format file codec","format or codec","format und codec","format undf codec","format x264 codec","format_waveformatex codec download","formats and codecs","formats et codecs","is codec format","mp4 video codec","mp4 video codecs","not supported video codec","video codec for mp4","video codec format","video formats and codecs","video formats and codecs explained","video formats codecs","video formats codecs and containers","video formats codecs and containers (explained)","what is codec format"],"articleSection":["codec"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/mp4gain.com\/mp4gain\/formats-extensions-and-codecs-what-do-they-mean\/","url":"https:\/\/mp4gain.com\/mp4gain\/formats-extensions-and-codecs-what-do-they-mean\/","name":"Formats, extensions and codecs: what do they mean? - mp4gain.com","isPartOf":{"@id":"https:\/\/mp4gain.com\/mp4gain\/#website"},"primaryImageOfPage":{"@id":"https:\/\/mp4gain.com\/mp4gain\/formats-extensions-and-codecs-what-do-they-mean\/#primaryimage"},"image":{"@id":"https:\/\/mp4gain.com\/mp4gain\/formats-extensions-and-codecs-what-do-they-mean\/#primaryimage"},"thumbnailUrl":"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/04\/Audio-1.jpg","datePublished":"2020-04-01T01:27:13+00:00","author":{"@id":"https:\/\/mp4gain.com\/mp4gain\/#\/schema\/person\/36ffddda9988e565bd4a9013324ce2cc"},"description":"When it comes to audio files, we can talk about formats, extensions and codecs. In summary, we can say that the format refers to the type of file, identified by its extension (* .mp3, * .wav, * .ogg, * .wma etc), which often tells us how it has been encoded or which one is your codec.","breadcrumb":{"@id":"https:\/\/mp4gain.com\/mp4gain\/formats-extensions-and-codecs-what-do-they-mean\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/mp4gain.com\/mp4gain\/formats-extensions-and-codecs-what-do-they-mean\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/mp4gain.com\/mp4gain\/formats-extensions-and-codecs-what-do-they-mean\/#primaryimage","url":"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/04\/Audio-1.jpg","contentUrl":"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/04\/Audio-1.jpg"},{"@type":"BreadcrumbList","@id":"https:\/\/mp4gain.com\/mp4gain\/formats-extensions-and-codecs-what-do-they-mean\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/mp4gain.com\/mp4gain\/"},{"@type":"ListItem","position":2,"name":"Formats, extensions and codecs: what do they mean?"}]},{"@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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