{"id":5975,"date":"2022-11-26T13:51:51","date_gmt":"2022-11-26T13:51:51","guid":{"rendered":"https:\/\/mp4gain.com\/mp4gain\/?p=5975"},"modified":"2022-11-26T13:51:51","modified_gmt":"2022-11-26T13:51:51","slug":"mp3-file-format-2","status":"publish","type":"post","link":"https:\/\/mp4gain.com\/mp4gain\/mp3-file-format-2\/","title":{"rendered":"MP3 file format"},"content":{"rendered":"

MP3 file format<\/strong><\/h2>\n
\"Mp3
Mp3 file format<\/figcaption><\/figure>\n

Introduction:
\nMP3 file format<\/p>\n

\"Mp3
Mp3 file format<\/figcaption><\/figure>\n

1. Overview:
\nMP3 files are made up of frames, and frames are the smallest unit of MP3 files. The full name of MP3 must be MPEG1 Layer 3 audio files. MPEG
\n(Motion Picture Experts Group) translates into Chinese as Moving Picture Experts Group, and refers specifically to moving video and audio compression standards.
\nMPEG1 standard, also known as MPEG audio layer, which is divided into three layers based on compression quality and encoding complexity, namely,
\nLayer-1, Layer2 and Layer3, which correspond to the three sound files of MP1, MP2 and MP3 respectively, and use different
\nlevels of audio files according to different purposes. The higher the MPEG audio encoding level, the more complex the encoder and the higher the compression ratio. The compression ratios of MP1 and MP2 are 4:1 and
\n6:1-8:1 respectively, while the compression ratio of MP3 is as high as 10:1-8:1. 12:1, meaning one minute of CD-quality music requires 10MB
\nof storage space without compression, but only about 1 MB after MP3 compression encoding. However, MP3 uses a lossy compression method for audio signals. To reduce
\nsound distortion, MP3 adopts “sensory coding technology”, that is, it first analyzes the frequency spectrum of audio files during encoding, and then uses filters to filter the
\nnoise . levels. Then the remaining bits are spread and arranged by means of quantization, and finally an MP3 file with a higher compression ratio is formed, and the
\ncompressed file can achieve a sound effect closer to the original sound source during playback.
\n2. The whole structure of
\nMP3 files: MP3 files are roughly divided into three parts: TAG_V2 (ID3V2), Frame, TAG_V1 (ID3V1)
\nID3V2 contains information like author, composer, album, etc. The length is not fixed, which expands the information volume of ID3V1.
\nA series of frames, the number is determined by the size of the file and the length of the frame. The length of each frame of the
\nframe
\nmay not be fixed or fixed, and is determined by the bitrate
\n.
\nEach table is divided into two parts: table header and data entity Header of data.
\nframe
\nRecord the bit rate, sample rate, version and other information of mp3, and each frame is independent of each other The frame
\nID3V1 contains information like author, composer, album, etc., and the length is 128BYTE . 3. MP3 FRAME format: each FRAME has a FRAMEHEADER frame header, the length is 4BYTE (32 bits), there may be two CRC check bytes after the frame header, the existence of these two bytes depends on the FRAMEHEADER information If bit 16 is 0, there is no checksum after the frame header, and if it is 1, there is a checksum. The checksum length is 2 bytes, followed by the FRAMEHEADER, followed by the frame entity data. The format is as follows: FRAMEHEADER CRC (free) MAIN_DATA 4 BYTE 0 OR 2 BYTE The length is calculated from frame header 1. The format of the FRAMEHEADER frame header is as follows: AAAAAAAA AAABCCD EEEEFFGH IIJJKLMM<\/p>\n","protected":false},"excerpt":{"rendered":"

MP3 file format Introduction: MP3 file format 1. Overview: MP3 files are made up of frames, and frames are the smallest unit of MP3 files. The full name of MP3 must be MPEG1 Layer 3 audio files. MPEG (Motion Picture Experts Group) translates into Chinese as Moving Picture Experts Group, and refers specifically to moving … Continue reading “MP3 file format”<\/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":[106367,105889,106411,105894,106284,38176,106379,74426,106285,106358,106286,106276,106295,106296,106380,106354,106352,106359,106356,106353,106293,106394,106304,106288,106303,106302,106347,106308,106305,106289,106310,106405,106404,106335,76627,106272,74465,106391,106321,76710,106319,106325,106278,106322,106329,106297,106370,76503,106396,106357,106360,35601,106334,106412,106331,106309,106306,106337,106409,106339,106341,106311,106399,106349,106417,106307,106361,106340,106330,106365,106410,106338,106408,106324,28596,106350,74530,105824,106351,106363,106362,106374,106355,86498,106282,106318,106301,106316,106317,106346,29805,106280,38171,38165,106279,106292,106300,106298,106275,106299,106313,74458,106312,106314,106323,76696,74446,29807,106326,22283,106336,106344,106343,106345,106287,106342,29822,29821,106366,22326,106281,22374,106388,106389,106320,106271,106383,106277,106390,106413,106368,76504,20460,38166,106315,106328,35619,106392,106375,22205,106372,106371,106369,22330,106382,106327,106393,106395,106373,106332,106333,106415,106414,106416,106419,106418,76692,76691,106294,106407,106381,106274,106384,106386,106387,85178,106385,73960,106378,106376,106377,86583,86490,76625,106283,106397,86677,60353,106364,106348,11633,106273,76700,106290,76514,106398,106291,76624,106401,106400,106403,106406,106402],"class_list":["post-5975","post","type-post","status-publish","format-standard","hentry","category-audio-normalizer","tag-mp3-file-extension-meaning","tag-0-files","tag-3gpp-file-format-to-mp3","tag-6-file-formats","tag-advantages-and-disadvantages-of-mp3-file-format","tag-advantages-of-mp3-file-format","tag-agptek-mp3-player-file-format-not-supported","tag-an-mp3-format-is-an-example-of-a-video-file","tag-android-mp3-file-format","tag-apa-saja-kelebihan-dan-kekurangan-format-file-mp3","tag-audible-file-format-to-mp3","tag-benefits-of-mp3-file-format","tag-best-file-format-for-mp3","tag-bin-file-format-to-mp3","tag-cannot-stat-format_mp3-so-no-such-file-or-directory","tag-cara-mengubah-format-file-ke-mp3","tag-cara-mengubah-format-file-m4a-ke-mp3","tag-cara-merubah-format-file-dari-mp4-ke-mp3","tag-cara-merubah-format-file-ke-mp3","tag-cara-merubah-format-file-mp4-ke-mp3","tag-cat-file-mp3-bang-format-factory","tag-clip-studio-paint-unsupported-file-format-mp3","tag-compression-mp3-file-format","tag-convert-audio-file-to-mp3-format","tag-convert-mp3-file-to-audio-cd-format","tag-convert-mp3-file-to-cd-format","tag-convert-mp3-file-to-itunes-format","tag-convert-mp3-file-to-midi-format","tag-convert-mp3-file-to-wav-format","tag-convert-mp3-to-audible-file-format","tag-convert-wma-file-to-mp3-format","tag-convert-zpl-file-to-mp3","tag-convert-zpl-file-to-mp3-online","tag-create-mp3g-files","tag-different-mp3-formats","tag-disadvantages-of-mp3-file-format","tag-download-mp3-format-converter","tag-download-mp3-format-songs","tag-dyzeryk-mp3-player-file-format-error","tag-e-8305-unsupported-file-format-mp3","tag-edit-mp3-file-format","tag-exo-file-format-to-mp3","tag-features-of-mp3-file-format","tag-file-contains-data-in-an-unknown-format-mp3","tag-file-format-for-mp3","tag-file-format-mp3-bitrate","tag-file-format-mp3-mp4","tag-file-format-not-supported-mp3-player","tag-file-video-format-mp3","tag-format-file-ke-mp3","tag-format-file-video-ke-mp3","tag-format-of-mp3-file","tag-gp-file-format","tag-how-big-is-a-4-minute-mp3-file","tag-how-to-change-file-format-from-mp3-to-wav","tag-how-to-change-file-format-from-mp4-to-mp3","tag-how-to-change-format-of-music-file-to-mp3","tag-how-to-change-mp3-file-format","tag-how-to-combine-2-mp3-files-into-1","tag-how-to-convert-avi-file-to-mp3-format","tag-how-to-convert-ram-file-to-mp3-format","tag-how-to-convert-a-video-file-to-mp3-format","tag-how-to-convert-an-mp4-file-to-an-mp3-file","tag-how-to-convert-audio-file-into-mp3-format","tag-how-to-convert-file-format-to-mp4","tag-how-to-convert-file-into-mp3-format","tag-how-to-convert-m4a-files-to-mp3-using-vlc","tag-how-to-convert-mp3-file-to-wav-format","tag-how-to-fix-file-format-not-supported-on-mp3-player","tag-how-to-format-usb-for-mp3-player","tag-how-to-merge-2-mp3-files-together","tag-how-to-open-a-mp3-file-format","tag-how-to-put-2-mp3-files-together","tag-intenso-mp3-player-file-format-error","tag-is-mp3-a-compressed-file-format","tag-javax-sound-sampled-unsupportedaudiofileexception-file-of-unsupported-format-mp3","tag-jelaskan-format-file-mp3","tag-jp-file-format","tag-jsm-file-format","tag-librosa-mp3-file-contains-data-in-an-unknown-format","tag-limitations-of-mp3-file-format","tag-m4a-to-mp3-file-format","tag-mengubah-format-file-ke-mp3","tag-mp3-audio-file-format","tag-mp3-audio-file-format-compression","tag-mp3-data-file-format","tag-mp3-file-extension-change","tag-mp3-file-extension-definition","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file format - 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-file-format-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"MP3 file format - mp4gain.com\" \/>\n<meta property=\"og:description\" content=\"MP3 file format Introduction: MP3 file format 1. Overview: MP3 files are made up of frames, and frames are the smallest unit of MP3 files. The full name of MP3 must be MPEG1 Layer 3 audio files. MPEG (Motion Picture Experts Group) translates into Chinese as Moving Picture Experts Group, and refers specifically to moving … Continue reading "MP3 file format"\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mp4gain.com\/mp4gain\/mp3-file-format-2\/\" \/>\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=\"2022-11-26T13:51:51+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cdn.worldvectorlogo.com\/logos\/mp3.svg\" \/>\n<meta name=\"author\" content=\"R. 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mp3\",\"recording in mp4 format\",\"rekordbox file format not supported mp3\",\"sandisk mp3 player file format not supported\",\"sony mp3 player file format not supported\",\"the most popular audio file format today is mp3\",\"the mp3 audio file format uses lossy compression\",\"volvo xc60 mp3 file format\",\"wav and mp3 file format\",\"what are the advantages of mp3 file format\",\"what audio format does mp4 use\",\"what does mp3 file format mean\",\"what is mp file format\",\"what is mp3 audio file format\",\"what is mp3 file format\",\"what is mp3 file format used for\",\"what is the average size of an mp3 file\",\"what is the difference between mp3 and mp4 file format\",\"what is the file extension of the mp3 format\",\"whatsapp mp3 file format\",\"which of the following browsers support mp3 audio file format\",\"xspf file format to mp3\",\"y4m file format\",\"ym file format\",\"zip mp3 files\",\"zmp file\",\"zpl file to mp3\"],\"articleSection\":[\"Audio 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