{"id":3788,"date":"2021-06-09T16:53:57","date_gmt":"2021-06-09T16:53:57","guid":{"rendered":"http:\/\/mp4gain.com\/mp4gain\/?p=3788"},"modified":"2021-06-09T16:53:57","modified_gmt":"2021-06-09T16:53:57","slug":"mp3-finally-goes-into-the-public-domain","status":"publish","type":"post","link":"https:\/\/mp4gain.com\/mp4gain\/mp3-finally-goes-into-the-public-domain\/","title":{"rendered":"MP3 finally goes into the public domain"},"content":{"rendered":"

MP3 finally goes into the public domain<\/strong><\/p>\n

\"mp3\"<\/p>\n

Open Source<\/p>\n

\"Mp3<\/p>\n

Perhaps many did not think so, but the mp3 standard so well known to all had problems with the purity of patents. On April 23, 2017, the last patents expired and the format was finally free. Technicolor has officially stopped collecting royalties from manufacturers of software and embedded solutions.<\/p>\n

License<\/p>\n

Although hardware mp3 decoding is built into all other coffee machines, until recently its use in commercial projects required royalties from the developer: Fraunhofer Society. In 2005 alone, the amount paid was one hundred million euros. Most of the patents became invalid in the European Union in 2012. However, some of them continued to operate in the United States due to peculiarities of local law. What does this news bring to the community? At least now it will be possible to compile Gentoo and listen to music at the same time immediately on the base distribution. Many distributions will be able to provide support for the standard to the main repository. Now, for example, Ubuntu itself requires the installation of non-free components from a separate Ubuntu Restricted Extras meta-package to support mp3.<\/p>\n

Bourbon vanilla vs vanillin<\/p>\n

How does this standard, which has been the main standard in this area for 24 years, despite many more advanced free options? mp3 is in many ways similar in principle to its cousin in the photo world: JPEG. Due to the imperfection of our hearing aid and the peculiarities of psychoacoustics, it is possible to “discard” those parts of the audio spectrum that do not make a significant contribution to the musical pattern. In particular, in the illustration above, you can see how the amount of information encoded in the high-frequency region increases.<\/p>\n

High frequencies are often sacrificed for the sake of preserving detail in the lower region – vocals, most instruments (thanks for the comment, KorDen32). Standard values \u200b\u200bof cutoff frequencies for the lame encoder:<\/p>\n

CBR 096 kbps: 14000 – 15000 Hz;
\nCBR 112 kbps: 15000-15600 Hz;
\nCBR 128 kbps: 16000 – 16500 Hz;
\nCBR 160 kbps: 16500-17500 Hz;
\nCBR 192 kbps: 18000-18700 Hz;
\nCBR 224 kbps: 19000-19400 Hz;
\nCBR 256 kbps: 19500-19700 Hz;
\nCBR 320 kbps: 20,000 – 21,000 Hz.<\/p>\n

The method can be compared to the creativity of flavor chemists. You’ve probably noticed that strawberry gum is very conventionally strawberry, and there isn’t enough lemon in synthetic lemon tea. Any natural flavoring composition contains dozens and even hundreds of chemical compounds. But the main core generally creates only a very limited amount. So, for example, vanillin defines most of the aroma of natural vanilla, and if you don’t appreciate the subtle nuances too much, the remaining components can be neglected. mp3 uses the same principles, removing insignificant portions of the spectrum. Most people cannot tell the lossless formats by ear from the normally encoded 320kbps mp3s, which saves a lot of space when storing your media library.<\/p>\n","protected":false},"excerpt":{"rendered":"

MP3 finally goes into the public domain Open Source Perhaps many did not think so, but the mp3 standard so well known to all had problems with the purity of patents. On April 23, 2017, the last patents expired and the format was finally free. Technicolor has officially stopped collecting royalties from manufacturers of software … Continue reading “MP3 finally goes into the public domain”<\/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":[1],"tags":[45907,45908,60674,62525,45813,45906,45798,45796,62523,62300,45791,45805,45804,45880,45803,45790,45802,62301,45808,45811,45812,60657,45814,45809,45810,57338,45816,60659,45817,60660,45822,62524,45823,45824,45829,60663,60662,45831,45830,45825,45833,45787,45835,45834,60664,45840,62303,62526,45846,57341,45855,45793,45856,62304,45859,45872,57343,60670,62044,57344,45876,45881,62045,45885,57345,45794,62528,45788,45850,57346,45890,45789,45893,45819,47735,45897,62529,57347,45860,45862,45848,45888,60671,45858,45894,45899,62305,23008,29703,45821,45892,45799,45800,60667,62527,47733,45887,45900,45870,62046,45827,45828,45867,45838,45836,45842,45843,45841,45845,45901,57339,45854,45861,45864,45865,45869,45868,45875,45878,45883,45806,45896,45895,45903,45905],"class_list":["post-3788","post","type-post","status-publish","format-standard","hentry","category-audio-video","tag-24-bit-audio-encoding","tag-32-bit-audio-encoding","tag-7-1-audio-encoding","tag-android-audio-encoding-example","tag-audio-cd-encoding","tag-audio-encoding-128kbps","tag-audio-encoding-aac","tag-audio-encoding-ac3-not-supported","tag-audio-encoding-algorithm","tag-audio-encoding-alternative","tag-audio-encoding-and-decoding","tag-audio-encoding-base64","tag-audio-encoding-benchmark","tag-audio-encoding-bit-rate","tag-audio-encoding-bit-rate-quality","tag-audio-encoding-bitrate","tag-audio-encoding-bitrate-android","tag-audio-encoding-book","tag-audio-encoding-channels","tag-audio-encoding-check","tag-audio-encoding-code","tag-audio-encoding-codecs","tag-audio-encoding-compression","tag-audio-encoding-conversion","tag-audio-encoding-converter","tag-audio-encoding-data","tag-audio-encoding-data-size","tag-audio-encoding-difference","tag-audio-encoding-dts","tag-audio-encoding-dts-ac3","tag-audio-encoding-eac3-not-supported","tag-audio-encoding-eac3-not-supported-android","tag-audio-encoding-error","tag-audio-encoding-examples","tag-audio-encoding-ffmpeg","tag-audio-encoding-file-format","tag-audio-encoding-files","tag-audio-encoding-flac","tag-audio-encoding-format-ac3-not-supported","tag-audio-encoding-format-eac3-not-supported","tag-audio-encoding-format-meaning","tag-audio-encoding-formats","tag-audio-encoding-g-726","tag-audio-encoding-g711ulaw","tag-audio-encoding-hardware","tag-audio-encoding-hikvision","tag-audio-encoding-in-ffmpeg","tag-audio-encoding-in-matlab","tag-audio-encoding-ios","tag-audio-encoding-iphone","tag-audio-encoding-library","tag-audio-encoding-linear16","tag-audio-encoding-lossless","tag-audio-encoding-methods","tag-audio-encoding-mp2l2","tag-audio-encoding-pcm","tag-audio-encoding-pdf","tag-audio-encoding-podcast","tag-audio-encoding-podigee","tag-audio-encoding-python","tag-audio-encoding-quality","tag-audio-encoding-sample-rate","tag-audio-encoding-sampling","tag-audio-encoding-sampling-frequency","tag-audio-encoding-settings","tag-audio-encoding-software","tag-audio-encoding-standard","tag-audio-encoding-techniques","tag-audio-encoding-techniques-in-multimedia","tag-audio-encoding-time","tag-audio-encoding-transcoding","tag-audio-encoding-types","tag-audio-encoding-using-ffmpeg","tag-audio-encoding-vs-decoding","tag-audio-encoding-vs-format","tag-audio-encoding-wiki","tag-audio-encoding-with-ffmpeg","tag-audio-encoding-youtube","tag-audio-format-encoding-mp4","tag-audio-format-mp3-encoding","tag-audio-input-encoding","tag-audio-steganography-encoding","tag-audio-text-encoding","tag-audio-ulaw-encoding","tag-audio-video-encoding","tag-audio-watermarking-encoding","tag-audio-webm-encoding","tag-best-audio-encoding-format","tag-digital-audio-encoding","tag-dolby-audio-encoding-utility","tag-dvd-flick-audio-encoding-takes-forever","tag-encoding-audio-and-video","tag-encoding-audio-and-video-bitesize","tag-encoding-audio-in-computer","tag-encoding-audio-on","tag-encoding-audio-over-ip","tag-encoding-audio-signal","tag-encoding-audio-with","tag-encoding-of-audio-signals","tag-encoding-using-audio","tag-esp32-audio-encoding","tag-ffmpeg-audio-encoding-example","tag-ffmpeg-audio-encoding-options","tag-gpu-audio-encoding","tag-gsm-audio-encoding","tag-handbrake-audio-encoding","tag-hdmi-audio-encoding","tag-hikvision-audio-encoding-type","tag-how-audio-encoding-works","tag-how-does-audio-encoding-work","tag-ivms-4200-audio-encoding-error","tag-java-audio-encoding","tag-lav-audio-matrix-encoding","tag-netflix-audio-encoding","tag-normal-audio-encoding","tag-obs-audio-encoding","tag-opus-audio-encoding","tag-perceptual-audio-encoding","tag-qt-audio-encoding","tag-record-audio-encoding","tag-set-audio-encoding-bitrate","tag-video-audio-encoding-settings","tag-voip-audio-encoding","tag-webrtc-audio-encoding","tag-zoom-audio-encoding"],"yoast_head":"\nMP3 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