{"id":1109,"date":"2020-04-15T21:53:22","date_gmt":"2020-04-15T21:53:22","guid":{"rendered":"http:\/\/mp4gain.com\/mp4gain\/?p=1109"},"modified":"2020-04-15T21:53:22","modified_gmt":"2020-04-15T21:53:22","slug":"what-are-the-digital-audio-formats","status":"publish","type":"post","link":"https:\/\/mp4gain.com\/mp4gain\/what-are-the-digital-audio-formats\/","title":{"rendered":"What are the digital audio formats?"},"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\/what-are-the-digital-audio-formats\/#What_are_the_digital_audio_formats\" >What are the digital audio formats?<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/mp4gain.com\/mp4gain\/what-are-the-digital-audio-formats\/#PCM_Wav_Aiff_Compression_Mp3_Ogg_Wma\" >PCM, Wav, Aiff. Compression. Mp3, Ogg, Wma.<\/a><\/li><\/ul><\/li><\/ul><\/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-are-the-digital-audio-formats\/#_UNCOMPRESSED_DIGITAL_AUDIO_FILES\" >\u00a0UNCOMPRESSED DIGITAL AUDIO FILES<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/mp4gain.com\/mp4gain\/what-are-the-digital-audio-formats\/#PCM\" >.PCM<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/mp4gain.com\/mp4gain\/what-are-the-digital-audio-formats\/#WAV_Wave_wave_in_English\" >.WAV: (Wave, wave in English)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/mp4gain.com\/mp4gain\/what-are-the-digital-audio-formats\/#AIFF_Audio_Interchange_File_Format\" >.AIFF: (Audio Interchange File Format)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/mp4gain.com\/mp4gain\/what-are-the-digital-audio-formats\/#CDA\" >.CDA<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/mp4gain.com\/mp4gain\/what-are-the-digital-audio-formats\/#_AUDIO_COMPRESSION\" >\u00a0AUDIO COMPRESSION<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/mp4gain.com\/mp4gain\/what-are-the-digital-audio-formats\/#SAVE_WITHOUT_COMPRESSING\" >SAVE WITHOUT COMPRESSING<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/mp4gain.com\/mp4gain\/what-are-the-digital-audio-formats\/#1_How_does_compression_work\" >1. How does compression work?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/mp4gain.com\/mp4gain\/what-are-the-digital-audio-formats\/#2_Quality_of_compressed_files\" >2. Quality of compressed files<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/mp4gain.com\/mp4gain\/what-are-the-digital-audio-formats\/#VARIABLE_OR_CONSTANT_BIT\" >VARIABLE OR CONSTANT BIT<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/mp4gain.com\/mp4gain\/what-are-the-digital-audio-formats\/#COMPRESSED_FILE_FORMATS\" >COMPRESSED FILE FORMATS<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/mp4gain.com\/mp4gain\/what-are-the-digital-audio-formats\/#Mp3_MPEG-1_Audio_Layer_3\" >Mp3 (MPEG-1 Audio Layer 3)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/mp4gain.com\/mp4gain\/what-are-the-digital-audio-formats\/#OGG_Vorbis\" >.OGG (Vorbis)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/mp4gain.com\/mp4gain\/what-are-the-digital-audio-formats\/#AAC_Advanced_Audio_Coding\" >.AAC (Advanced Audio Coding)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/mp4gain.com\/mp4gain\/what-are-the-digital-audio-formats\/#RAM_also_RM_or_RA\" >.RAM (also RM or RA)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/mp4gain.com\/mp4gain\/what-are-the-digital-audio-formats\/#WMA_Windows_Media_Audio\" >.WMA (Windows Media Audio)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/mp4gain.com\/mp4gain\/what-are-the-digital-audio-formats\/#_AA3_ATRAC_%E2%80%93_Adaptive_Transform_Acoustic_Coding\" >. AA3 (ATRAC &#8211; Adaptive Transform Acoustic Coding)<\/a><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"What_are_the_digital_audio_formats\"><\/span>What are the digital audio formats?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"PCM_Wav_Aiff_Compression_Mp3_Ogg_Wma\"><\/span>PCM, Wav, Aiff. Compression. Mp3, Ogg, Wma.<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Working with digital audio is almost a chore for puzzle specialists. Since audio is saved on the computer and all computer files have extensions, we have to interpret each acronym and abbreviation.<\/p>\n<p>The extension is the end of the file after the name and period. It is used to know what type of file it is, whether it is a text, a video or an audio. There are many extensions and they are all sure to sound familiar to you: WAV, RM, MP3, WMA, OGG &#8230; Let&#8217;s play, then, to decipher puzzles and see what each of these acronyms means.<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/04\/audio-formats.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1106\" src=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/04\/audio-formats.jpg\" alt=\"\" width=\"994\" height=\"400\" srcset=\"https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/04\/audio-formats.jpg 994w, https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/04\/audio-formats-300x121.jpg 300w, https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/04\/audio-formats-768x309.jpg 768w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/p>\n<h2><span class=\"ez-toc-section\" id=\"_UNCOMPRESSED_DIGITAL_AUDIO_FILES\"><\/span>\u00a0UNCOMPRESSED DIGITAL AUDIO FILES<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h2><span class=\"ez-toc-section\" id=\"PCM\"><\/span>.PCM<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>It is not a file type or format, but a technique of transforming analog to digital audio without any compression. (1) Therefore, we do not see audios with the pcm extension. We work with PCM when digitizing, but we always keep files with one of these extensions:<\/p>\n<h2><span class=\"ez-toc-section\" id=\"WAV_Wave_wave_in_English\"><\/span>.WAV: (Wave, wave in English)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>It is the most widely used uncompressed digital audio format. It belongs to Microsoft \/ IBM.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"AIFF_Audio_Interchange_File_Format\"><\/span>.AIFF: (Audio Interchange File Format)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>It is similar to WAV but for Apple Macintosh or MAC computers.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"CDA\"><\/span>.CDA<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>: These are the audio tracks recorded on Compact Disc that also use the PCM system.<\/p>\n<p>All uncompressed files are large. Approximately 10 megabytes for every minute of audio. These are the formats used to store audio at a professional level since the quality is very good. But when we don&#8217;t need that much quality and we&#8217;re short on space, it&#8217;s time to use file compression.<\/p>\n<p><a href=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/01\/format.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-833\" src=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/01\/format.jpg\" alt=\"\" width=\"388\" height=\"389\" srcset=\"https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/01\/format.jpg 388w, https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/01\/format-150x150.jpg 150w, https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/01\/format-300x300.jpg 300w\" sizes=\"auto, (max-width: 388px) 85vw, 388px\" \/><\/a><\/p>\n<h2><span class=\"ez-toc-section\" id=\"_AUDIO_COMPRESSION\"><\/span>\u00a0AUDIO COMPRESSION<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Compressing is reducing and whenever we reduce we lose something. The same is true for digital audio. The latest advances have allowed compression to be done with the least possible loss of quality, but there always are. Against that, much has been gained in reducing the size of the files.<\/p>\n<p>While a 4-minute audio in WAV format takes approximately 40 megabytes, that same audio, compressed to MP3, can reduce its weight to 4 megabytes, 10 times less. And apparently, they sound the same. (2)<\/p>\n<h2><span class=\"ez-toc-section\" id=\"SAVE_WITHOUT_COMPRESSING\"><\/span>SAVE WITHOUT COMPRESSING<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>When working in production, it is always recorded in WAV, without compression. In that same way it is edited and mixed. If the final result of the edition is an audio to be uploaded on the Web or saved on the hard drive of a computer, we can compress it to mp3 but with a quality of no less than 160 kbps.<\/p>\n<p>If, on the contrary, the production has as its final destination to be recorded on a CD, never compress, always leave the audio in WAV and burn it that way on the CD.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"1_How_does_compression_work\"><\/span>1. How does compression work?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>It is not about wrinkling or crushing the audio. Most audio compression systems take advantage of a &#8220;defect&#8221; in our ears to reduce file size. It is called masking.<\/p>\n<p>Masking is a property of the human ear that prevents it from distinguishing two frequencies close together within the same range, one masking the other. For example, if a sound with a frequency of 12 Khz and another of 12.2 Khz sounds at the same time in a song, we could remove one of the two without being noticed when listening to it.<\/p>\n<p>In this way, the compressor \u201csubtracts\u201d the masked frequencies, which reduces the number of bytes. And fewer bytes in computing translates into smaller files, but not shorter. The song, when compressed, lasts as long as it is uncompressed.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"2_Quality_of_compressed_files\"><\/span>2. Quality of compressed files<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>We saw in the previous question that digital audio has two parameters: the sampling frequency (the optimum is 44.1 Khz.) And the resolution or size of each sample (8 or 16 bits). By compressing, we add a third parameter to these two, the bitrate. It is the amount of kilobytes per second (kbps) and refers to the quality of the compression.<\/p>\n<p>\u2022 A lower number of Kbps, more compression, smaller file size, but lower quality.<\/p>\n<p>\u2022 A higher number of Kbps, less compression, larger file size and more quality.<\/p>\n<p>A compressed audio at 128 Kbps has a higher compression level than a 256 Kbps one. That means that 128 is a smaller file and less quality than 256. Although you must have a cat&#8217;s ear to distinguish between both!<\/p>\n<h2><span class=\"ez-toc-section\" id=\"VARIABLE_OR_CONSTANT_BIT\"><\/span>VARIABLE OR CONSTANT BIT<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Some files have a constant bit rate per second (CBR Constant Bit Rate) and others have a variable one (VBR Variable Bit Rate). The constant is always the same for all audio, for example 128 kilobytes per second. In the variable method, what the compressor does is use more bits when there are parts of the audio where there are more frequencies and it cannot mask all of them.<\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"COMPRESSED_FILE_FORMATS\"><\/span>COMPRESSED FILE FORMATS<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h2><span class=\"ez-toc-section\" id=\"Mp3_MPEG-1_Audio_Layer_3\"><\/span>Mp3 (MPEG-1 Audio Layer 3)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>It achieves high compressions without much loss, although it all depends on the quality of the compression we use. 128 Kbps and below is not recommended.<\/p>\n<p>Although mp3 is the most widely used compression standard, especially for audio on Web pages, the great drawback is its patent. So any player or editing software that wants to use it has to pay for it.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"OGG_Vorbis\"><\/span>.OGG (Vorbis)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>As a result of this patent, the Xiph.org Foundation developed in 2002 a completely free codec (5) for audio compression. Similar in characteristics to mp3, it is beginning to be used a lot on the Web and in some players since manufacturers do not have to pay the costs of the patent. At this point, it is difficult to completely replace the mp3 but it is eating up a lot of ground.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"AAC_Advanced_Audio_Coding\"><\/span>.AAC (Advanced Audio Coding)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The compression level is higher than mp3 (MPEG-1) without major loss of quality. AAC is one of the codecs used in the new MPEG-4 compression standard. This audio format is used in players like the iPod and in some of the new digital radio systems. AAC is shaping up to be the successor to the mp3.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"RAM_also_RM_or_RA\"><\/span>.RAM (also RM or RA)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>They are the files of the Real Network company for audio. The problem is that its reproduction and edition is very limited to software from the same company and few others.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"WMA_Windows_Media_Audio\"><\/span>.WMA (Windows Media Audio)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>It is Windows&#8217; bet on compressed formats. It is like a WAV, but smaller and less quality. While mp3 and ogg files are played by almost all players and editors, the same is not the case with wma files, so it is rarely used.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"_AA3_ATRAC_%E2%80%93_Adaptive_Transform_Acoustic_Coding\"><\/span>. AA3 (ATRAC &#8211; Adaptive Transform Acoustic Coding)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Format invented by Sony. It is the one used by minidisc recorder-players.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What are the digital audio formats? PCM, Wav, Aiff. Compression. Mp3, Ogg, Wma. Working with digital audio is almost a chore for puzzle specialists. Since audio is saved on the computer and all computer files have extensions, we have to interpret each acronym and abbreviation. The extension is the end of the file after the &hellip; <a href=\"https:\/\/mp4gain.com\/mp4gain\/what-are-the-digital-audio-formats\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;What are the digital audio formats?&#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":[29117,6940,29126,29119,23626,29118,6893,6905,29161,29124,29128,29144,6946,29143,23656,29115,29113,6853,6854,29112,6855,29114,6859,6864,6863,29120,14747,6866,6861,14739,28905,29121,29122,6847,27546,29125,14744,29123,29127,6880,6876,29129,6878,6877,6889,6890,6888,6852,6887,29131,6896,6850,22467,6848,28904,6897,28902,6902,6901,29134,6913,6910,6914,29133,6915,6912,6920,6923,14740,6924,6921,14738,29136,6922,6836,6919,29140,6936,6934,6950,6948,23624,6947,23622,23625,29145,6962,6964,6961,6965,6963,6960,22470,22471,23632,29147,23630,23631,14741,23634,6849,23633,6979,6978,6846,6988,6986,6987,29109,14752,29110,29111,29160,23650,29152,29151,29101,7009,7007,7010,23654,7017,6840,7027,7026,7023,7024,28906,7025,7037,7038,6980,6937,23655,24164,7018,29104,29105,23657,6982,6894,6903,6954,6959,29146,23637,6886,27552,29132,6907,6908,29135,29138,7089,29153,7033,7036,6927,6929,29137,6931,6928,29139,6933,29142,7035,23658,11644,6983,23641,29148,29149,29150,6997,7011,6999,29116,29141,6981,29155,23653,29130,29154,7041,29156,29157,6832,29158,6998,7034,29159,7042],"class_list":["post-1109","post","type-post","status-publish","format-standard","hentry","category-audio-normalizer","tag-a-audio-file-formats","tag-all-audio-formats-list","tag-audio-description-format","tag-audio-file-format","tag-audio-file-format-name","tag-audio-file-formats","tag-audio-file-formats-explained","tag-audio-file-formats-groups","tag-audio-file-formats-on-youtube","tag-audio-format-converter-free-download","tag-audio-format-details","tag-audio-format-m4a","tag-audio-format-mp3-m4a","tag-audio-format-mp4","tag-audio-format-which-is-better","tag-audio-formats-aac","tag-audio-formats-and-encoding","tag-audio-formats-and-quality","tag-audio-formats-android","tag-audio-formats-apple","tag-audio-formats-apple-tv-4k","tag-audio-formats-audi-mmi","tag-audio-formats-audiophile","tag-audio-formats-best","tag-audio-formats-best-quality","tag-audio-formats-best-to-worst","tag-audio-formats-better-than-mp3","tag-audio-formats-browser","tag-audio-formats-browser-support","tag-audio-formats-by-quality","tag-audio-formats-by-size","tag-audio-formats-cd","tag-audio-formats-common","tag-audio-formats-compared","tag-audio-formats-comparison","tag-audio-formats-compatible-with-powerpoint","tag-audio-formats-compatible-with-premiere-pro","tag-audio-formats-converter","tag-audio-formats-defined","tag-audio-formats-definition","tag-audio-formats-differences","tag-audio-formats-divx","tag-audio-formats-dolby","tag-audio-formats-dts","tag-audio-formats-encoding","tag-audio-formats-encyclopedia","tag-audio-formats-examples","tag-audio-formats-explained","tag-audio-formats-extensions","tag-audio-formats-flac","tag-audio-formats-for-android","tag-audio-formats-for-facebook","tag-audio-formats-for-google-slides","tag-audio-formats-for-iphone","tag-audio-formats-for-powerpoint","tag-audio-formats-for-web","tag-audio-formats-for-youtube","tag-audio-formats-galaxy-s6","tag-audio-formats-garageband","tag-audio-formats-header","tag-audio-formats-hi-res","tag-audio-formats-history","tag-audio-formats-hitfilm","tag-audio-formats-home-theatre","tag-audio-formats-how","tag-audio-formats-html","tag-audio-formats-in-1991","tag-audio-formats-in-android","tag-audio-formats-in-audacity","tag-audio-formats-in-html","tag-audio-formats-in-html5","tag-audio-formats-in-multimedia","tag-audio-formats-in-the-90s","tag-audio-formats-iphone","tag-audio-formats-is-not-supported-by-html5","tag-audio-formats-itunes","tag-audio-formats-latest","tag-audio-formats-linear-pcm","tag-audio-formats-list","tag-audio-formats-mean","tag-audio-formats-mime-type","tag-audio-formats-missing","tag-audio-formats-mkv","tag-audio-formats-mp3","tag-audio-formats-names","tag-audio-formats-new","tag-audio-formats-ogg","tag-audio-formats-on-itunes","tag-audio-formats-on-netflix","tag-audio-formats-on-pc","tag-audio-formats-open-source","tag-audio-formats-other-than-mp3","tag-audio-formats-over-arc","tag-audio-formats-over-optical","tag-audio-formats-pc","tag-audio-formats-pcm","tag-audio-formats-pdf","tag-audio-formats-ppt","tag-audio-formats-premiere-pro","tag-audio-formats-presentation","tag-audio-formats-ps4","tag-audio-formats-pygame","tag-audio-formats-quality","tag-audio-formats-quality-comparison","tag-audio-formats-ranked","tag-audio-formats-recording","tag-audio-formats-reddit","tag-audio-formats-reference","tag-audio-formats-supported-by-android","tag-audio-formats-supported-by-google-play-music","tag-audio-formats-supported-by-html5","tag-audio-formats-supported-by-iphone","tag-audio-formats-supported-by-youtube","tag-audio-formats-tape","tag-audio-formats-that-are-supported-by-internet-explorer","tag-audio-formats-timeline","tag-audio-formats-types","tag-audio-formats-ubuntu","tag-audio-fo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