{"id":5993,"date":"2022-12-01T15:26:53","date_gmt":"2022-12-01T15:26:53","guid":{"rendered":"https:\/\/mp4gain.com\/mp4gain\/?p=5993"},"modified":"2022-12-01T15:26:53","modified_gmt":"2022-12-01T15:26:53","slug":"mp3-file-format-analysis","status":"publish","type":"post","link":"https:\/\/mp4gain.com\/mp4gain\/mp3-file-format-analysis\/","title":{"rendered":"MP3 file format analysis"},"content":{"rendered":"

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

1. Summary of MP3 and MPEG files<\/p>\n

\"MP3
MP3 file format analysis<\/figcaption><\/figure>\n

An MP3 file is made up of frames, and a frame is the smallest unit of an MP3 file. The full name of MP3 must be MPEG1 Layer-3 audio file.<\/p>\n

MPEG (MovingPictureExperts Group), MPGE audio layer refers to the sound part of the MPGE file, which is divided into three layers based on the quality and complexity of the encoding, namely Layer-1, Layer2 and Layer3, corresponding to MP1, MP2 and MP3 format files.<\/p>\n

2. Structure of MP3 files
\nMP3 files are divided into 3 parts : TAG_V2(ID3V2 ) , Frame, TAG_V1(ID3V1) .<\/p>\n

( 1 ) Frame format<\/p>\n

The frame header is 4 bytes and its structure is as follows<\/p>\n

typedef FrameHeader<\/p>\n

{<\/p>\n

unsigned intsync: 11; \/\/ synchronization information<\/p>\n

unsigned intversion: 2; \/\/ version<\/p>\n

unsigned intlayer: 2; \/\/ layer<\/p>\n

unsigned intprotection: 1; \/\/ CRC check<\/p>\n

unsigned intbitrate: 4; \/\/ Bit rate<\/p>\n

unsigned intfrequency: 2; \/\/ sample rate<\/p>\n

unsigned intpadding: 1; \/\/ adjust frame length<\/p>\n

unsigned intprivate: 1; \/\/ reserved word<\/p>\n

unsigned intmode: 2; \/\/ channel mode<\/p>\n

unsigned int mode extension: 2; \/\/ extended mode<\/p>\n

unsigned intcopyright: 1; \/\/ Copyright<\/p>\n

unsigned original: 1; \/\/ original logo<\/p>\n

unsigned inemphasis: 2; \/\/ emphasis mode<\/p>\n

}<\/p>\n

HEADER, *LPHEADER;<\/p>\n

Each frame takes 26 ms to play, regardless of the length of the frame. The length of MAIN_DATA is<\/p>\n

Length(MAIN_DATA) = ((version == MPEG1)?144:72) * bitrate\/frequency + padding;<\/p>\n

( 2 ) ID3V1 format<\/p>\n

ID3V1 is stored at the end of the MP3 file, a total of 128 Bytes, all information is stored sequentially and the insufficient part is filled with ‘\\0’, which can be opened and viewed with UltraEdit.<\/p>\n

typedef tagID3V1 structure<\/p>\n

{<\/p>\n

char header[3];<\/p>\n

char Title[30];<\/p>\n

artist char[30];<\/p>\n

album char[30];<\/p>\n

char Year[4];<\/p>\n

char Comment[28];<\/p>\n

coal reserve;<\/p>\n

character track;;<\/p>\n

charGenus;<\/p>\n

}<\/p>\n

ID3V1,*pID3V1;<\/p>\n

( 3 ) ID3V2 format<\/p>\n

ID3V2 is stored in the header of the MP3 file and consists of a tag header and several tag frames.<\/p>\n

The tag header is 10 bytes,<\/p>\n

char header[3];<\/p>\n

char see;<\/p>\n

character review;<\/p>\n

char Flag;<\/p>\n

character size [4];<\/p>\n

Each tag frame consists of a 10-byte frame header and at least one byte of variable-length content. The frame header is defined as follows:<\/p>\n

char frame ID[4];<\/p>\n

character size [4];<\/p>\n

char Flags[2];<\/p>\n","protected":false},"excerpt":{"rendered":"

MP3 file format analysis 1. Summary of MP3 and MPEG files An MP3 file is made up of frames, and a frame is the smallest unit of an MP3 file. The full name of MP3 must be MPEG1 Layer-3 audio file. MPEG (MovingPictureExperts Group), MPGE audio layer refers to the sound part of the MPGE … Continue reading “MP3 file format analysis”<\/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":[106559,106558,106557,106560,106567,106568,106262,106569,106570,106490,76627,106504,106506,106505,106475,106476,106514,106516,106528,106523,106522,106524,106531,71150,106530,106532,106489,106488,106491,106495,106499,74446,106482,106556,106484,106509,106483,22205,106508,22279,106479,106521,106520,106518,106529,46301,68741,106485,106517,106554,106566,106555,106474,106507,106545,40969,106486,106503,42068,106519,106515,106565,106564,106534,106536,106535,106533,106541,106539,106540,106543,106542,68647,68646,73277,106563,106510,106562,106546,106511,106512,106561,106500,106492,106494,106493,106497,106478,106498,106496,106480,106513,106538,106487,106537,106481,106501,106477,106502,106527,106526,106547,106548,106525,106544,28516,106550,106549,106551,106552,106553],"class_list":["post-5993","post","type-post","status-publish","format-standard","hentry","category-audio-normalizer","tag-2-methylpropane-structural-formula","tag-2-mps","tag-2-methylpropane-complete-structural-formula","tag-2-methylpropane-condensed-structural-formula","tag-5-structures","tag-6-structures-lyrics","tag-6-mp","tag-7-structure","tag-9-11-structural-analysis","tag-c-structure-members","tag-different-mp3-formats","tag-em-structural","tag-embedding-mp3-in-html","tag-eplan-structure-identifier","tag-file-mp3-structure","tag-frame-mp3-structure","tag-g-structure","tag-g3p-structure","tag-i-like-your-structure-song-mp3-download","tag-j-and-j-headquarters","tag-j-and-j-world-headquarters","tag-j-mol-to-j-molecule","tag-m-vs-mp","tag-m-m-m-meaning","tag-masicka-structure-mp3-download","tag-mp-mc-difference","tag-mp3-binary-file-structure","tag-mp3-byte-structure","tag-mp3-data-structure","tag-mp3-directory-structure","tag-mp3-file-data-structure","tag-mp3-file-format-example","tag-mp3-file-header-structure","tag-mp3-file-structure","tag-mp3-file-structure-pdf","tag-mp3-folder-structure","tag-mp3-folder-structure-maker","tag-mp3-format-specification","tag-mp3-frame-structure","tag-mp3-header-format-structure","tag-mp3-header-structure","tag-mp3-id3-tag-structure","tag-mp3-id3v2-tag-structure","tag-mp3-in-mp4-umwandeln","tag-mp3-metadata-structure","tag-mp3-or-mp4-for-audio","tag-mp3-player-comparison","tag-mp3-player-folder-structure","tag-mp3-side-information-structure","tag-mp3-standard","tag-mp3-stereo-component","tag-mp3-stereo-to-mono","tag-mp3-structure","tag-mp3-structure-format","tag-mp3-tag-structure","tag-mp3-to-aac-format","tag-mp3-tutor-session-animal-structure","tag-mp3-tutor-session-dna-structure","tag-mp3-vs-wav-for-podcast","tag-mp3-where-to-buy","tag-mp3-g","tag-mp5-stereo","tag-mp5-stl","tag-n3-lewis-structure-molecular-geometry","tag-n3-molecular-shape","tag-n3-resonance-structure","tag-n3-resonance-structures-most-stable","tag-o-which-one-is-on","tag-o-o-meaning","tag-o-minimal-structure","tag-p-p-s-meaning","tag-p-dibenzylbenzene-structure","tag-q3-mp3","tag-q3-mp3-player","tag-q5-mp3-player","tag-street-fighter-4-mp3","tag-streetkit-structure-mp3-free-download","tag-structure-344","tag-structure-dun-fichier-mp3","tag-structure-fichier-mp3","tag-structure-full-song-download-mp3","tag-structure-full-song-download-mp3-320kbps","tag-structure-mood-off-ringtone-mp3-download","tag-structure-mp3-download","tag-structure-mp3-download-320kbps","tag-structure-mp3-download-pagalworld","tag-structure-mp3-ringtone-download-pagalworld","tag-structure-mp3-song-download","tag-structure-mp3-song-download-320kbps","tag-structure-mp3-song-download-pagalworld","tag-structure-music-download-mp3","tag-structure-music-mp3-free-download","tag-structure-odd-sweetheart-mp3","tag-structure-of-an-mp3-file","tag-structure-of-mp3-file","tag-structure-ringtone-download-mp3","tag-structure-song-download-mp3-mr-jatt","tag-structure-song-download-mp3-pagalworld","tag-structure-street-kit-mp3-download-320kbps","tag-structure-street-kit-song-mp3-download","tag-structure-streetkit-full-mp3-download","tag-v-structure","tag-w3-mp3","tag-what-are-the-structure-of-judiciary","tag-what-does-the-p-stand-for-on-a-p-plate","tag-what-mp3-stands-for","tag-x-files-mp3","tag-x-structure","tag-z-structure","tag-z3-string","tag-z3-strong-strut"],"yoast_head":"\nMP3 file format analysis - 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-analysis\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"MP3 file format analysis - mp4gain.com\" \/>\n<meta property=\"og:description\" content=\"MP3 file format analysis 1. Summary of MP3 and MPEG files An MP3 file is made up of frames, and a frame is the smallest unit of an MP3 file. The full name of MP3 must be MPEG1 Layer-3 audio file. MPEG (MovingPictureExperts Group), MPGE audio layer refers to the sound part of the MPGE … Continue reading "MP3 file format analysis"\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mp4gain.com\/mp4gain\/mp3-file-format-analysis\/\" \/>\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=\"2022-12-01T15:26:53+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/media.biobiochile.cl\/wp-content\/uploads\/2016\/03\/imagen-11.png\" \/>\n<meta name=\"author\" content=\"R. 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Arias\",\"@id\":\"https:\/\/mp4gain.com\/mp4gain\/#\/schema\/person\/36ffddda9988e565bd4a9013324ce2cc\"},\"headline\":\"MP3 file format analysis\",\"datePublished\":\"2022-12-01T15:26:53+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/mp4gain.com\/mp4gain\/mp3-file-format-analysis\/\"},\"wordCount\":355,\"image\":{\"@id\":\"https:\/\/mp4gain.com\/mp4gain\/mp3-file-format-analysis\/#primaryimage\"},\"thumbnailUrl\":\"http:\/\/media.biobiochile.cl\/wp-content\/uploads\/2016\/03\/imagen-11.png\",\"keywords\":[\"2 methylpropane structural formula\",\"2 mps\",\"2-methylpropane complete structural formula\",\"2-methylpropane condensed structural formula\",\"5 structures\",\"6 structures lyrics\",\"6-mp\",\"7 structure\",\"9\/11 structural analysis\",\"c structure members\",\"different mp3 formats\",\"e+m structural\",\"embedding mp3 in html\",\"eplan structure identifier\",\"file mp3 structure\",\"frame mp3 structure\",\"g structure\",\"g3p structure\",\"i like your structure song mp3 download\",\"j and j headquarters\",\"j and j world headquarters\",\"j\/mol to j\/molecule\",\"m vs mp\",\"m\/m\/m meaning\",\"masicka structure mp3 download\",\"mp mc difference\",\"mp3 binary file structure\",\"mp3 byte structure\",\"mp3 data structure\",\"mp3 directory structure\",\"mp3 file data structure\",\"mp3 file format example\",\"mp3 file header structure\",\"mp3 file structure\",\"mp3 file structure pdf\",\"mp3 folder structure\",\"mp3 folder structure maker\",\"mp3 format specification\",\"mp3 frame structure\",\"mp3 header format structure\",\"mp3 header structure\",\"mp3 id3 tag structure\",\"mp3 id3v2 tag structure\",\"mp3 in mp4 umwandeln\",\"mp3 metadata structure\",\"mp3 or mp4 for audio\",\"mp3 player comparison\",\"mp3 player folder structure\",\"mp3 side information structure\",\"mp3 standard\",\"mp3 stereo component\",\"mp3 stereo to mono\",\"mp3 structure\",\"mp3 structure format\",\"mp3 tag structure\",\"mp3 to aac format\",\"mp3 tutor session animal structure\",\"mp3 tutor session dna structure\",\"mp3 vs wav for podcast\",\"mp3 where to buy\",\"mp3-g\",\"mp5 stereo\",\"mp5 stl\",\"n3- lewis structure molecular geometry\",\"n3- molecular shape\",\"n3- resonance structure\",\"n3- resonance structures most stable\",\"o - 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Linkedin\",\"sameAs\":[\"https:\/\/www.linkedin.com\/in\/ricardoariaszorrilla\/\"],\"url\":\"https:\/\/mp4gain.com\/mp4gain\/author\/mp4gain\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"MP3 file format analysis - mp4gain.com","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\/mp3-file-format-analysis\/","og_locale":"en_US","og_type":"article","og_title":"MP3 file format analysis - mp4gain.com","og_description":"MP3 file format analysis 1. Summary of MP3 and MPEG files An MP3 file is made up of frames, and a frame is the smallest unit of an MP3 file. The full name of MP3 must be MPEG1 Layer-3 audio file. 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