{"id":35145,"date":"2019-10-31T22:02:32","date_gmt":"2019-10-31T19:02:32","guid":{"rendered":"https:\/\/prohoster.info\/blog\/audio-cherez-bluetooth-maksimalno-podrobno-o-profilyah-kodekah-i-ustrojstvah\/"},"modified":"2019-10-31T22:02:32","modified_gmt":"2019-10-31T19:02:32","slug":"audio-cherez-bluetooth-maksimalno-podrobno-o-profilyah-kodekah-i-ustrojstvah","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/administrirovanie\/audio-cherez-bluetooth-maksimalno-podrobno-o-profilyah-kodekah-i-ustrojstvah","title":{"rendered":"Audio p\u00ebrmes Bluetooth: sa m\u00eb shum\u00eb informacione mbi profilet, kodek\u00ebt dhe pajisjet.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"Audio p\u00ebrmes Bluetooth: sa m\u00eb shum\u00eb informacione mbi profilet, kodek\u00ebt dhe pajisjet.\" src=\"\/wp-content\/uploads\/48eced30a8d5e569e0c70ab4d60c5a9f.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nP\u00ebr shkak t\u00eb prodhimit masiv t\u00eb smartphone-ve pa portin audio 3.5 mm, kufjet Bluetooth pa tel jan\u00eb b\u00ebr\u00eb m\u00ebnyra kryesore p\u00ebr t\u00eb d\u00ebgjuar muzik\u00eb dhe p\u00ebr t\u00eb komunikuar si krye.<br \/>\nProdhuesit e pajisjeve pa tel nuk e shkruajn\u00eb gjithmon\u00eb karakteristik\u00ebn e detajuar t\u00eb produktit, dhe artikujt mbi audio Bluetooth n\u00eb internet jan\u00eb kontradiktor\u00eb, her\u00eb-her\u00eb t\u00eb pasakt\u00eb, nuk flasin p\u00ebr t\u00eb gjitha ve\u00e7orit\u00eb, dhe shpesh kopjojn\u00eb t\u00eb nj\u00ebjt\u00ebn informacion t\u00eb pap\u00ebrshtatsh\u00ebm.<br \/>\nLe t\u00eb p\u00ebrpiqemi t\u00eb kuptojm\u00eb protokollin, mund\u00ebsit\u00eb e stek\u00ebve Bluetooth t\u00eb OS, kufjeve dhe kolonave, kodeket Bluetooth p\u00ebr muzik\u00eb dhe z\u00eb, t\u00eb zbulojm\u00eb \u00e7far\u00eb ndikon n\u00eb cil\u00ebsin\u00eb e z\u00ebrit t\u00eb transmetuar dhe vones\u00ebn, dhe t\u00eb m\u00ebsojm\u00eb si t\u00eb mbledhim dhe dekodojm\u00eb informacionin mbi kodeket dhe mund\u00ebsit\u00eb e tjera t\u00eb pajisjeve.<\/p>\n<p><b>TL;DR<\/b>: <\/p>\n<ul>\n<li>SBC \u2014 kodek normal<\/li>\n<li>Kufjet kan\u00eb ekuitizuesin e tyre dhe procesimin pasues p\u00ebr secilin kodek ve\u00e7mas<\/li>\n<li>aptX nuk \u00ebsht\u00eb aq i mir\u00eb sa e thon\u00eb reklamuesit<\/li>\n<li>LDAC \u2014 marketing i pavler\u00eb<\/li>\n<li>Cil\u00ebsia e z\u00ebrit gjat\u00eb bised\u00ebs ende \u00ebsht\u00eb e ul\u00ebt<\/li>\n<li>Mund t\u00eb integrohen kodek\u00ebt audio n\u00eb browser me C, duke u kompiluar n\u00eb WebAssembly p\u00ebrmes emscripten, dhe ata nuk do t\u00eb bien shum\u00eb n\u00eb performanc\u00eb.<\/li>\n<\/ul>\n<p>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<h1>Muzik\u00eb p\u00ebrmes Bluetooth<\/h1>\n<p>Funksionaliteti i Bluetooth p\u00ebrcaktohet nga profilet \u2014 specifikimet e funksioneve t\u00eb caktuara. Transmetimi i muzik\u00ebs n\u00eb Bluetooth b\u00ebhet duke p\u00ebrdorur profilin p\u00ebr transmetimin e audios nj\u00ebkah\u00ebs A2DP. Standardi A2DP u miratua n\u00eb vitin 2003 dhe nga at\u00ebher\u00eb nuk ka pasur ndryshime t\u00eb m\u00ebdha.<br \/>\nN\u00eb kuad\u00ebr t\u00eb profilit standardizohet 1 kodek i detyruesh\u00ebm me kompleksitet t\u00eb ul\u00ebt SBC, i krijuar posa\u00e7\u00ebrisht p\u00ebr Bluetooth, dhe 3 kodek\u00eb shtes\u00eb. Po ashtu lejohet p\u00ebrdorimi i kodek\u00ebve jo dokumentuar t\u00eb implementimit t\u00eb vet.<\/p>\n<p>N\u00eb qershor 2019 ne jemi <noindex><a rel=\"nofollow\" href=\"https:\/\/xkcd.com\/927\/\">n\u00eb komiksin xkcd<\/a><\/noindex> me 14 kodek\u00ebt A2DP:<\/p>\n<ul>\n<li><b>SBC<\/b> \u2190 i standardizuar n\u00eb A2DP, mb\u00ebshtetet nga t\u00eb gjitha pajisjet<\/li>\n<li><b>MPEG-1\/2 Layer 1\/2\/3<\/b> \u2190 t\u00eb standardizuar n\u00eb A2DP: t\u00eb njohur <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/MP3\">MP3<\/a><\/noindex>, e p\u00ebrdorur n\u00eb TV digjitale <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/MPEG-1_Audio_Layer_II\">MP2<\/a><\/noindex>, dhe e panjohur <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/MPEG-1_Audio_Layer_I\">MP1<\/a><\/noindex><\/li>\n<li><b>MPEG-2\/4 AAC<\/b> \u2190 e standardizuar n\u00eb A2DP<\/li>\n<li><b>ATRAC<\/b> \u2190 kodek i vjet\u00ebr nga Sony, i standardizuar n\u00eb A2DP<\/li>\n<li><b>LDAC<\/b> \u2190 kodek i ri nga Sony<\/li>\n<li><b>aptX<\/b> \u2190 kodek nga viti 1988<\/li>\n<li><b>aptX HD<\/b> \u2190 e nj\u00ebjta gj\u00eb si aptX, vet\u00ebm me parametra t\u00eb ndrysh\u00ebm kodimi<\/li>\n<li><b>aptX Low Latency<\/b> \u2190 kodek krejt\u00ebsisht tjet\u00ebr, nuk ka implementim softuerik<\/li>\n<li><b>aptX Adaptive<\/b> \u2190 nj\u00eb tjet\u00ebr kodek nga Qualcomm<\/li>\n<li><b>FastStream<\/b> \u2190 kodek i simbolik\u00eb, modifikim dyansh\u00ebm SBC<\/li>\n<li><b>HWA LHDC<\/b> \u2190 kodek i ri nga Huawei<\/li>\n<li><b>Samsung HD<\/b> \u2190 mb\u00ebshtetet nga 2 pajisje<\/li>\n<li><b>Samsung Scalable<\/b> \u2190 mb\u00ebshtetet nga 2 pajisje<\/li>\n<li><b>Samsung UHQ-BT<\/b> \u2190 mb\u00ebshtetet nga 3 pajisje<\/li>\n<\/ul>\n<p>Pse ju nevojiten kodek\u00ebt, do t\u00eb pyesni, kur n\u00eb Bluetooth ka EDR q\u00eb lejon transferimin e t\u00eb dh\u00ebnave me shpejt\u00ebsi 2 dhe 3 Mbit\/s, dhe p\u00ebr PCM t\u00eb pa kompresuar dykanal\u00ebsh 16-bit, mjafton 1.4 Mbit\/s?<\/p>\n<p><\/p>\n<h1>Transferimi i t\u00eb dh\u00ebnave p\u00ebrmes Bluetooth<\/h1>\n<p>N\u00eb Bluetooth ekzistojn\u00eb dy lloje transferimi t\u00eb t\u00eb dh\u00ebnave: Asynchronous Connection Less (ACL) p\u00ebr transferim asinkron pa vendosjen e nj\u00eb lidhjeje, dhe Synchronous Connection Oriented (SCO), p\u00ebr transferim sinkron me miratim paraprak t\u00eb lidhjes.<br \/>\nTransmetimi b\u00ebhet duke p\u00ebrdorur nj\u00eb skem\u00eb t\u00eb ndarjes s\u00eb koh\u00ebs dhe zgjedhjes s\u00eb kanalit t\u00eb transmetimit p\u00ebr \u00e7do paket\u00eb ve\u00e7mas (Frequency-Hop\/Time-Division-Duplex, FH\/TDD), p\u00ebr k\u00ebt\u00eb arsye koha ndahet n\u00eb intervale prej 625 mikrosekondash, t\u00eb quajtur slot-e. Nj\u00eb nga pajisjet transmeton n\u00eb numrat e \u00e7ift\u00eb t\u00eb slot-eve, tjetra \u2014 n\u00eb numrat e tek. Paketa e transmetuar mund t\u00eb z\u00eb 1, 3 ose 5 slot-e, n\u00eb var\u00ebsi t\u00eb madh\u00ebsis\u00eb s\u00eb t\u00eb dh\u00ebnave dhe tipit t\u00eb caktuar t\u00eb transmetimit; n\u00eb k\u00ebt\u00eb rast, transmetimi nga nj\u00eb pajisje b\u00ebhet n\u00eb slot-e t\u00eb \u00e7ift\u00eb dhe tek deri n\u00eb fund t\u00eb transmetimit. N\u00eb total, n\u00eb sekond\u00eb mund t\u00eb pranohen dhe d\u00ebrgohen deri n\u00eb 1600 paketa, n\u00ebse secila z\u00eb 1 slot, dhe t\u00eb dy pajisjet transmetojn\u00eb dhe pranojn\u00eb vazhdimisht di\u00e7ka.<\/p>\n<p>2 dhe 3 Mbit\/s p\u00ebr EDR, t\u00eb cilat mund t\u00eb takohen n\u00eb njoftimet dhe n\u00eb faqen e internetit t\u00eb Bluetooth-it, jan\u00eb shpejt\u00ebsia maksimale e kanalit t\u00eb transmetimit t\u00eb t\u00eb gjith\u00eb t\u00eb dh\u00ebnave s\u00eb bashku (p\u00ebrfshir\u00eb krye t\u00eb teknike t\u00eb t\u00eb gjitha protokolleve n\u00eb t\u00eb cilat duhet t\u00eb inkapsulohen t\u00eb dh\u00ebnat), n\u00eb t\u00eb dy drejtimet nj\u00ebkoh\u00ebsisht. Shpejt\u00ebsia e faktike e transmetimit t\u00eb t\u00eb dh\u00ebnave do t\u00eb ndryshoj\u00eb ndjesh\u00ebm.<\/p>\n<p>P\u00ebr transfert\u00ebn e muzik\u00ebs, p\u00ebrdoret nj\u00eb metod\u00eb asinkrone, pothuajse gjithmon\u00eb me ndihm\u00ebn e paketave t\u00eb tipit 2-DH5 dhe 3-DH5, t\u00eb cilat mbajn\u00eb sasin\u00eb maksimale t\u00eb t\u00eb dh\u00ebnave n\u00eb modalitetin EDR 2 Mbit\/s dhe 3 Mbit\/s p\u00ebrkat\u00ebsisht, dhe z\u00ebn\u00eb 5 slot-e t\u00eb ndarjes p\u00ebrkohore t\u00eb ajrit.<\/p>\n<p>Nj\u00eb paraqitje skematike e transferimit duke p\u00ebrdorur 5 slot-e nga nj\u00eb pajisje dhe 1 slot nga nj\u00eb tjet\u00ebr (DH5\/DH1):<br \/>\n<img decoding=\"async\" alt=\"Audio p\u00ebrmes Bluetooth: sa m\u00eb shum\u00eb informacione mbi profilet, kodek\u00ebt dhe pajisjet.\" src=\"\/wp-content\/uploads\/e5875cb59648c349a63c8e7196e9afbf.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nP\u00ebr shkak t\u00eb parimit t\u00eb ndarjes s\u00eb ajrit n\u00eb koh\u00eb, na duhet t\u00eb presim nj\u00eb slot kohezion prej 625 mikrosekondash pas transferimit t\u00eb paket\u00ebs, n\u00ebse pajisja e dyt\u00eb nuk na d\u00ebrgon asgj\u00eb ose d\u00ebrgon nj\u00eb paket\u00eb t\u00eb vog\u00ebl, dhe nj\u00eb koh\u00eb m\u00eb t\u00eb gjat\u00eb, n\u00ebse pajisja e dyt\u00eb d\u00ebrgon paketat m\u00eb t\u00eb m\u00ebdha. N\u00ebse telefoni \u00ebsht\u00eb i lidhur me m\u00eb shum\u00eb se nj\u00eb pajisje (p.sh., kufje, or\u00eb dhe wristband fitness), koha e transfert\u00ebs ndahet midis tyre t\u00eb gjitha.<\/p>\n<p>Nevoja p\u00ebr enkapsulimin e audios n\u00eb protokollet speciale t\u00eb transportit L2CAP dhe AVDTP merr 16 byte nga sasia maksimale e mundshme e ngarkes\u00ebs audio t\u00eb transferuar.<\/p>\n<p>Tipi i paket\u00ebs<br \/>\nNumri i slot-eve<br \/>\nMax. numri i byteve n\u00eb paket\u00eb<br \/>\nMax. numri i byteve t\u00eb ngarkes\u00ebs A2DP<br \/>\nMax. bitrate i ngarkes\u00ebs A2DP<\/p>\n<p>2-DH3<br \/>\n3<br \/>\n367<br \/>\n351<br \/>\n936 kbit\/s<\/p>\n<p>3-DH3<br \/>\n3<br \/>\n552<br \/>\n536<br \/>\n1429 kbps<\/p>\n<p>2-DH5<br \/>\n5<br \/>\n679<br \/>\n663<br \/>\n1414 kbps<\/p>\n<p>3-DH5<br \/>\n5<br \/>\n1021<br \/>\n1005<br \/>\n2143 kbps<\/p>\n<p>1414 dhe 1429 kbps sakt\u00ebsisht nuk jan\u00eb t\u00eb mjaftueshme p\u00ebr transmetimin e z\u00ebrit t\u00eb pakompresuar n\u00eb kushte reale, me zhurm\u00ebn n\u00eb gam\u00ebn 2.4 GHz dhe nevoj\u00ebn p\u00ebr t\u00eb transmetuar t\u00eb dh\u00ebna sh\u00ebrbimi. EDR 3 Mbps k\u00ebrkon shum\u00eb energji transmetimi dhe zhurma n\u00eb aj\u00ebr, k\u00ebshtu q\u00eb, edhe n\u00eb m\u00ebnyr\u00ebn 3-DH5, transmetimi i rehatshem PCM \u00ebsht\u00eb i pamundur, do t\u00eb ket\u00eb nd\u00ebrprerje t\u00eb shkurtra dhe gjith\u00e7ka do t\u00eb funksionoj\u00eb vet\u00ebm n\u00eb nj\u00eb distanc\u00eb prej disa metrash.<br \/>\nN\u00eb praktik\u00eb, madje edhe nj\u00eb rrjedh\u00eb audio 990 kbps (LDAC 990 kbit\/s) transmetohet me v\u00ebshtir\u00ebsi.<\/p>\n<p>T\u00eb kthehemi te kodet.<\/p>\n<h2>SBC<\/h2>\n<p>Kodeku, i detyruesh\u00ebm p\u00ebr t\u00eb gjitha pajisjet q\u00eb mb\u00ebshtesin standardin A2DP. Kodeku m\u00eb i mir\u00eb dhe m\u00eb i keq n\u00eb t\u00eb nj\u00ebjt\u00ebn koh\u00eb.<\/p>\n<p>Frekuenca e mostrave<br \/>\nBit depth<br \/>\nBitrate<br \/>\nMb\u00ebshtetje p\u00ebr kodim<br \/>\nMb\u00ebshtetje p\u00ebr dekodim<\/p>\n<p>16, 32, 44.1, 48 kHz<br \/>\n16 bit<br \/>\n10-1500 kbps<br \/>\nNga t\u00eb gjitha pajisjet<br \/>\nNga t\u00eb gjitha pajisjet<\/p>\n<p>SBC \u2014 kodek i thjesht\u00eb dhe i shpejt\u00eb n\u00eb llogaritje, me nj\u00eb model psikoakustik primitiv (p\u00ebrdoret vet\u00ebm maskimi i tingujve t\u00eb qet\u00eb), duke p\u00ebrdorur modulimin e kodit impulsiv adaptiv (APCM).<br \/>\nSpecifikimi A2DP rekomandon p\u00ebrdorimin e dy profileve: Cil\u00ebsia Mesatare dhe Cil\u00ebsia e Lart\u00eb.<br \/>\n<img decoding=\"async\" alt=\"Audio p\u00ebrmes Bluetooth: sa m\u00eb shum\u00eb informacione mbi profilet, kodek\u00ebt dhe pajisjet.\" src=\"\/wp-content\/uploads\/8939e552a23374228289a9686f4d1048.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nKodeku ka shum\u00eb cil\u00ebsime q\u00eb lejojn\u00eb menaxhimin e vones\u00ebs algoritmike, numrit t\u00eb mostrave n\u00eb bllok, algoritmit t\u00eb shp\u00ebrndarjes s\u00eb bit\u00ebve, por pothuajse gjithmon\u00eb p\u00ebrdoren t\u00eb nj\u00ebjtat parametra t\u00eb rekomanduara n\u00eb specifikim: Joint Stereo, 8 grupe frekuencash, 16 blloqe n\u00eb audioshtrirje, m\u00ebnyra e shp\u00ebrndarjes s\u00eb bit\u00ebve Loudness.<br \/>\nSBC mb\u00ebshtet ndryshimin dinamik t\u00eb parametrave t\u00eb Bitpool, i cili ndikon drejtp\u00ebrdrejt n\u00eb bitrat. N\u00ebse transmetimi i radios \u00ebsht\u00eb i ngarkuar, paketat humbasin, ose pajisjet jan\u00eb n\u00eb nj\u00eb distanc\u00eb t\u00eb madhe, burimi i audios mund t\u00eb zvog\u00ebloj\u00eb Bitpool derisa lidhja t\u00eb normalizohet.<\/p>\n<p>Prodhuesit e shumic\u00ebs s\u00eb kufjeve vendosin vler\u00ebn maksimale t\u00eb parametrave t\u00eb Bitpool n\u00eb 53, e cila kufizon bitrat n\u00eb 328 kilobit\u00eb p\u00ebr sekond\u00eb kur p\u00ebrdoret profili i rekomanduar.<br \/>\nMadje n\u00ebse prodhuesi i kufjeve ka vendosur vler\u00ebn maksimale t\u00eb Bitpool mbi 53 (modelet si Beats Solo\u00b3, JBL Everest Elite 750NC, Apple AirPods, si dhe disa receptor\u00eb dhe pajisje automjetesh), shumica e sistemeve operative nuk lejojn\u00eb p\u00ebrdorimin e bitrat\u00ebve t\u00eb rritur p\u00ebr shkak t\u00eb nj\u00eb kufizimi t\u00eb brendsh\u00ebm t\u00eb vendosur n\u00eb stekat Bluetooth.<br \/>\nGjithashtu, disa prodhues vendosin nj\u00eb vler\u00eb maksimale t\u00eb ul\u00ebt t\u00eb Bitpool p\u00ebr disa pajisje. P\u00ebr shembull, te Bluedio T ajo \u00ebsht\u00eb 39, nd\u00ebrsa te Samsung Gear IconX - 37, q\u00eb \u00e7on n\u00eb cil\u00ebsi t\u00eb dob\u00ebt audio.<\/p>\n<p>Kufizimet artificiale nga ana e zhvilluesve t\u00eb stekave Bluetooth, me shum\u00eb mund\u00ebsi jan\u00eb shkaktuar nga incompatibiliteti i disa pajisjeve me vlera t\u00eb m\u00ebdha t\u00eb Bitpool ose profile jo tipike, megjith\u00ebse ata raportuan mb\u00ebshtetje p\u00ebr to, dhe numri i pap\u00ebrvojave gjat\u00eb certifikimit. Autor\u00ebt e stekave Bluetooth e kishin m\u00eb t\u00eb leht\u00eb t\u00eb kufizoheshin n\u00eb miratimin e profilit t\u00eb rekomanduar, sesa t\u00eb krijonin nj\u00eb baz\u00eb t\u00eb pajisjeve t\u00eb pap\u00ebrshtatshme (ndon\u00ebse tani ata e b\u00ebjn\u00eb k\u00ebt\u00eb p\u00ebr funksione t\u00eb tjera q\u00eb nuk po punojn\u00eb si\u00e7 duhet).<\/p>\n<p>SBC alokohen dinamikisht bitet e kvantizimit p\u00ebr bandes frekuencash, funksionon nga posht\u00eb lart, me pesh\u00eb t\u00eb ndryshme. N\u00ebse e gjith\u00eb bitrate p\u00ebrdoret p\u00ebr frekuencat e ul\u00ebta dhe t\u00eb mesme, frekuencat e larta \"priten\" (n\u00eb vend t\u00eb tyre do t\u00eb ket\u00eb heshtje).<\/p>\n<p>Shembulli SBC 328 kbit\/s. Lart \u2014 origjinali, posht\u00eb \u2014 SBC, periodikisht ndodh kalimi mes gjurm\u00ebve. P\u00ebr audio n\u00eb skedarin video p\u00ebrdoret kodeku pa humbje FLAC. P\u00ebrdorimi i FLAC n\u00eb kontejnerin mp4 nuk \u00ebsht\u00eb standardizuar zyrtarisht, prandaj nuk \u00ebsht\u00eb e sigurt q\u00eb shfletuesi juaj do ta riprodhoj\u00eb at\u00eb, por duhet t\u00eb funksionoj\u00eb n\u00eb versionet e fundit t\u00eb Chrome dhe Firefox p\u00ebr desktop. N\u00ebse nuk keni tingull, mund t\u00eb shkarkoni skedarin dhe ta hapni n\u00eb nj\u00eb player video t\u00eb plote.<br \/>\n<video controls style=\"top: 0; left: 0; width: 100%; height: 100%; position: absolute;\">Shfletuesi juaj nuk mb\u00ebshtet videon HTML5.<source src=\"https:\/\/files.catbox.moe\/8yrssu.mp4\" type=\"video\/mp4\"><\/source><\/video><i>ZZ Top \u2014 Sharp Dressed Man<\/i><\/p>\n<p>N\u00eb spektrogram duket momenti i kalimit: SBC periodikisht i prer\u00eb zhurmat e qeta mbi 17.5 kHz, dhe nuk alokon fare bite p\u00ebr band\u00ebn mbi 20 kHz. Spektrogrami i plot\u00eb \u00ebsht\u00eb n\u00eb dispozicion me nj\u00eb klik (1.7 MB).<br \/>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/habrastorage.org\/webt\/qj\/i7\/4w\/qji74wrphaigw3qtza6nepvur50.png\"><img decoding=\"async\" alt=\"Audio p\u00ebrmes Bluetooth: sa m\u00eb shum\u00eb informacione mbi profilet, kodek\u00ebt dhe pajisjet.\" src=\"\/wp-content\/uploads\/c59aa3f6eff4c4d966a4c96868dd7e00.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/p>\n<p>Nuk d\u00ebgjoj ndryshim midis origjinalit dhe SBC n\u00eb k\u00ebt\u00eb k\u00ebng\u00eb.<\/p>\n<p>T\u00eb marrim di\u00e7ka m\u00eb t\u00eb re dhe t\u00eb modelojm\u00eb audio-n q\u00eb do t\u00eb rezultonte nga p\u00ebrdorimi i kufjeve Samsung Gear IconX me Bitpool 37 (n\u00eb t\u00eb sip\u00ebrm \u2014 sinjali origjinal, n\u00eb t\u00eb posht\u00ebm \u2014 SBC 239 kbps, z\u00ebri n\u00eb FLAC).<br \/>\n<video controls style=\"top: 0; left: 0; width: 100%; height: 100%; position: absolute;\">Shfletuesi juaj nuk mb\u00ebshtet videon HTML5.<source src=\"https:\/\/files.catbox.moe\/r561g5.mp4\" type=\"video\/mp4\"><\/source><\/video><i>Mindless Self Indulgence \u2014 Witness<\/i><\/p>\n<p>Po d\u00ebgjoj nj\u00eb krisje, efektin e stereos m\u00eb t\u00eb vog\u00ebl dhe nj\u00eb \u00abklik\u00bb t\u00eb pak\u00ebndsh\u00ebm t\u00eb vokalit n\u00eb frekuencat e larta.<\/p>\n<p>Megjith\u00ebse SBC \u00ebsht\u00eb nj\u00eb kodek shum\u00eb fleksib\u00ebl, i cili mund t\u00eb konfigurohet p\u00ebr vonesa t\u00eb ulta, ofron cil\u00ebsi t\u00eb shk\u00eblqyer audio n\u00eb bitrate t\u00eb larta (452+ kbps) dhe mjaft t\u00eb mir\u00eb p\u00ebr shumic\u00ebn e njer\u00ebzve n\u00eb Standardin e Cil\u00ebsis\u00eb s\u00eb Lart\u00eb (328 kbps), p\u00ebr shkak se standardi A2DP nuk p\u00ebrcakton profile t\u00eb rregullta (por ofron vet\u00ebm rekomandime). Zhvilluesit e stack-\u00ebve kan\u00eb vendosur kufizime artificiale n\u00eb Bitpool, parametrat e audio-s s\u00eb transmetuar nuk shfaqen n\u00eb nd\u00ebrfaqen p\u00ebrdoruese, dhe prodhuesit e kufjeve jan\u00eb t\u00eb lir\u00eb t\u00eb vendosin cil\u00ebsimet e tyre dhe kurr\u00eb nuk japin vler\u00ebn e Bitpool n\u00eb karakteristikat teknike t\u00eb produktit; kodeku \u00ebsht\u00eb b\u00ebr\u00eb i njohur p\u00ebr cil\u00ebsin\u00eb e ul\u00ebt t\u00eb z\u00ebrit, ndon\u00ebse kjo nuk \u00ebsht\u00eb nj\u00eb problem i kodekut vet\u00eb.<br \/>\nParametri Bitpool ndikon drejtp\u00ebrdrejt n\u00eb bitrate vet\u00ebm brenda nj\u00eb profili. E nj\u00ebjta vler\u00eb Bitpool 53 mund t\u00eb jap\u00eb si bitrate 328 kbps n\u00eb profilin e rekomanduar High Quality, ashtu edhe 1212 kbps me Dual Channel dhe 4 brezatoresh, p\u00ebr shkak t\u00eb s\u00eb cil\u00ebs zhvilluesit e OS-s\u00eb, p\u00ebrve\u00e7 kufizimeve t\u00eb Bitpool, vendosin gjithashtu nj\u00eb kufizim mbi Bitrate. Si\u00e7 e shoh, nj\u00eb situat\u00eb e till\u00eb ka lindur p\u00ebr shkak t\u00eb mang\u00ebsive t\u00eb standardit A2DP: duhej t\u00eb koordinohej bitrate, jo Bitpool.<\/p>\n<p>Tabel\u00eb mb\u00ebshtetjeje t\u00eb mund\u00ebsive SBC n\u00eb sisteme t\u00eb ndryshme operative:<\/p>\n<p>sistemin operativ<br \/>\nFrekuencat e mb\u00ebshtetura t\u00eb mostrave<br \/>\nKufizimi maksimal i Bitpool<br \/>\nKufizimi maksimal i Bitrate<br \/>\nBitrate tipik<br \/>\nRregullimi dinamik i Bitpool<\/p>\n<p><b>Windows 10<\/b><br \/>\n44.1 kHz<br \/>\n53<br \/>\n512 kbps<br \/>\n328 kbps<br \/>\n\u2713*<\/p>\n<p><b>Linux (BlueZ + PulseAudio)<\/b><br \/>\n16, 32, 44.1, 48 kHz<br \/>\n64 (n\u00eb lidhje hyr\u00ebse), 53 (n\u00eb lidhje dal\u00ebse)<br \/>\nPa kufizim<br \/>\n328 kbps<br \/>\n\u2713*<\/p>\n<p><b>macOS High Sierra<\/b><br \/>\n44.1 kHz<br \/>\n64, n\u00eb parazgjedhje 53***<br \/>\nE panjohur<br \/>\n328 kbps<br \/>\n\u2717<\/p>\n<p><b>Android 4.4-9<\/b><br \/>\n44.1\/48 kHz**<br \/>\n53<br \/>\n328 kbps<br \/>\n328 kbps<br \/>\n\u2717<\/p>\n<p><b>Android 4.1-4.3.1<\/b><br \/>\n44.1, 48 kHz**<br \/>\n53<br \/>\n229 kbps<br \/>\n229 kbps<br \/>\n\u2717<\/p>\n<p><b>Blackberry OS 10<\/b><br \/>\n48 kHz<br \/>\n53<br \/>\nPa kufizim<br \/>\n328 kbps<br \/>\n\u2717<\/p>\n<p><i><b>*<\/b> Bitpool vet\u00ebm zvog\u00eblohet, por nuk rritet automatikisht n\u00eb rast t\u00eb p\u00ebrmir\u00ebsimit t\u00eb kushteve t\u00eb transmetimit. P\u00ebr t\u00eb rikuperuar Bitpool, duhet t\u00eb ndaloni reproduktimin, t\u00eb pritni disa sekonda dhe t\u00eb rilidhni audio.<br \/>\n<b>**<\/b> Vlera default varet nga konfigurimet e stack-ut, t\u00eb caktuara gjat\u00eb kompilimit t\u00eb firmware. N\u00eb Android 8\/8.1 frekuenca \u00ebsht\u00eb vet\u00ebm 44.1 kHz ose 48 kHz, n\u00eb var\u00ebsi t\u00eb konfigurimeve gjat\u00eb kompilimit, nd\u00ebrsa n\u00eb versionet e tjera mb\u00ebshteten si 44.1 kHz ashtu edhe 48 kHz nj\u00ebkoh\u00ebsisht.<br \/>\n<b>***<\/b> Vlera e Bitpool mund t\u00eb rritet n\u00eb programin Bluetooth Explorer.<\/i><\/p>\n<h2>aptX dhe aptX HD<\/h2>\n<p>aptX \u00ebsht\u00eb nj\u00eb codec i thjesht\u00eb dhe t\u00eb shpejt\u00eb n\u00eb llogaritje, pa psikoakustik\u00eb, q\u00eb p\u00ebrdor modulimin e impulsit me diferenc\u00eb adapative (<noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%90%D0%B4%D0%B0%D0%BF%D1%82%D0%B8%D0%B2%D0%BD%D0%B0%D1%8F_%D0%B4%D0%B8%D1%84%D1%84%D0%B5%D1%80%D0%B5%D0%BD%D1%86%D0%B8%D0%B0%D0%BB%D1%8C%D0%BD%D0%B0%D1%8F_%D0%B8%D0%BC%D0%BF%D1%83%D0%BB%D1%8C%D1%81%D0%BD%D0%BE-%D0%BA%D0%BE%D0%B4%D0%BE%D0%B2%D0%B0%D1%8F_%D0%BC%D0%BE%D0%B4%D1%83%D0%BB%D1%8F%D1%86%D0%B8%D1%8F\">ADPCM<\/a><\/noindex>). U shfaq rreth vitit 1988 (data e k\u00ebrkes\u00ebs <noindex><a rel=\"nofollow\" href=\"https:\/\/patents.google.com\/patent\/EP0398973B1\/en\">p\u00ebr patent\u00eb<\/a><\/noindex> daton nga shkurt 1988), p\u00ebrpara Bluetooth-it u p\u00ebrdor kryesisht n\u00eb pajisje profesionale p\u00ebr audio pa kabllo. Aktualisht i takon kompanis\u00eb Qualcomm, k\u00ebrkon licencim dhe pagesa licencash. N\u00eb vitin 2014: $6000 nj\u00eb her\u00eb dhe \u2248$1 p\u00ebr \u00e7do pajisje, p\u00ebr porosi deri n\u00eb 10000 pajisje (<noindex><a rel=\"nofollow\" href=\"https:\/\/www.silabs.com\/documents\/login\/presentations\/Developing-Bluetooth-Audio.pdf\">burimi<\/a><\/noindex>, fq. 16).<br \/>\naptX dhe aptX HD jan\u00eb t\u00eb nj\u00ebjtat codec, me profile t\u00eb ndryshme kodimi.<\/p>\n<p>Codec-i ka vet\u00ebm nj\u00eb parameter \u2014 zgjedhjen e frekuenc\u00ebs s\u00eb most\u00ebrzimit. Ka gjithashtu zgjedhjen e numrit\/modit t\u00eb kanaleve, por n\u00eb t\u00eb gjitha pajisjet q\u00eb kam njohur (70+ copa) mb\u00ebshtetet ekskluzivisht Stereo.<\/p>\n<p>Codec-i<br \/>\nFrekuenca e mostrave<br \/>\nBit depth<br \/>\nBitrate<br \/>\nMb\u00ebshtetje p\u00ebr kodim<br \/>\nMb\u00ebshtetje p\u00ebr dekodim<\/p>\n<p><b>aptX<\/b><br \/>\n16, 32, 44.1, 48 kHz<br \/>\n16 bit<br \/>\n128 \/ 256 \/ 352 \/ 384 kbit\/s (n\u00eb var\u00ebsi t\u00eb frekuenc\u00ebs s\u00eb kampionimit)<br \/>\nWindows 10 (desktop dhe mobile), macOS, Android 4.4+\/7*, Blackberry OS 10<br \/>\nMe nj\u00eb gam\u00eb t\u00eb gjer\u00eb pajisjesh audio (hardueri)<\/p>\n<p><i><b>*<\/b> Versionet deri n\u00eb 7 k\u00ebrkojn\u00eb modifikimin e stek\u00eb Bluetooth. Codec-i mb\u00ebshtetet vet\u00ebm n\u00ebse prodhuesi i pajisjes Android ka licencuar p\u00ebrdorimin e codec-it nga Qualcomm (n\u00ebse sistemi operativ ka biblioteka kodimi).<\/i><\/p>\n<p>aptX e ndan audion n\u00eb 4 banda frekuencash dhe e kodon me t\u00eb nj\u00ebjtin num\u00ebr bit\u00ebsh konstant: 8 bit p\u00ebr 0-5.5 kHz, 4 bit p\u00ebr 5.5-11 kHz, 2 bit p\u00ebr 11-16.5 kHz, 2 bit p\u00ebr 16.5-22 kHz (numrat p\u00ebr frekuenc\u00ebn e kampionimit 44.1 kHz).<\/p>\n<p>Shembulli i audios aptX (n\u00eb krye - sinjali origjinal, posht\u00eb - aptX, spektrogramet e kanaleve t\u00eb majta vet\u00ebm, tingulli n\u00eb FLAC):<br \/>\n<video controls style=\"top: 0; left: 0; width: 100%; height: 100%; position: absolute;\">Shfletuesi juaj nuk mb\u00ebshtet videon HTML5.<source src=\"https:\/\/files.catbox.moe\/06eohy.mp4\" type=\"video\/mp4\"><\/source><\/video><br \/>\nFrekuencat e larta kan\u00eb b\u00ebr\u00eb pak m\u00eb shum\u00eb ngjyr\u00eb t\u00eb kuqe, por ndryshimi nuk \u00ebsht\u00eb i d\u00ebgjuesh\u00ebm.<\/p>\n<p>P\u00ebr shkak t\u00eb shp\u00ebrndarjes fikse t\u00eb bit\u00ebve t\u00eb kodimit, codec-i nuk mund \"t\u00eb transferoj\u00eb bit\u00ebt\" n\u00eb ato frekuenca q\u00eb kan\u00eb m\u00eb shum\u00eb nevoj\u00eb p\u00ebr to. Ndryshe nga SBC, aptX nuk do \"t\u00eb pres\u00eb\" frekuencat, por do t\u00eb shtoj\u00eb zhurma kodimi, duke zvog\u00ebluar dinamik\u00ebn e audios.<\/p>\n<p>Nuk duhet t\u00eb mendohet se p\u00ebrdorimi, p\u00ebr shembull, i 2 bit\u00ebve p\u00ebr band\u00eb zvog\u00eblon dinamik\u00ebn n\u00eb 12 dB: ADPCM lejon p\u00ebrdorimin e deri n\u00eb 96 dB dinamik\u00eb edhe kur p\u00ebrdoren 2 bit kuantizimi, por vet\u00ebm me nj\u00eb sinjal t\u00eb caktuar.<br \/>\nADPCM ruan diferenc\u00ebn e p\u00ebrfaq\u00ebsimit num\u00ebror midis mostr\u00ebs aktuale dhe asaj t\u00eb ardhshme, n\u00eb vend q\u00eb t\u00eb regjistroj\u00eb vler\u00ebn absolute, si\u00e7 ndodh n\u00eb PCM. Kjo lejon t\u00eb reduktohen k\u00ebrkesat p\u00ebr numrin e bit\u00ebve t\u00eb nevojsh\u00ebm p\u00ebr t\u00eb ruajtur informacion t\u00eb nj\u00ebjt\u00eb (pa humbje) ose praktikisht t\u00eb nj\u00ebjt\u00eb (me nj\u00eb gabim rrethimi relativisht t\u00eb vog\u00ebl). T\u00eb dh\u00ebnat p\u00ebr reduktimin e gabimeve t\u00eb rrethimit p\u00ebrdorin tabela koeficient\u00ebsh.<br \/>\nKur u krijua kodeku, autor\u00ebt llogarit\u00ebn koeficient\u00ebt ADPCM mbi nj\u00eb grup muzikor t\u00eb audiofileve. Sa m\u00eb af\u00ebr t\u00eb jet\u00eb sinjali audio me at\u00eb grup muzike mbi t\u00eb cilat u nd\u00ebrtuan tabelat, aq m\u00eb pak gabime kuantizimi (zhurmash) prodhon aptX.<\/p>\n<p>P\u00ebr k\u00ebt\u00eb arsye, testet sintetike do t\u00eb japin gjithmon\u00eb rezultate m\u00eb t\u00eb k\u00ebqija se muzika. Kam b\u00ebr\u00eb nj\u00eb shembull sintetik t\u00eb ve\u00e7ant\u00eb, n\u00eb t\u00eb cilin aptX tregon rezultate t\u00eb dob\u00ebta \u2014 nj\u00eb sinusoid me frekuenc\u00eb 12.4 kHz (n\u00eb krye \u00ebsht\u00eb sinjali origjinal, posht\u00eb \u00ebsht\u00eb aptX. Tingulli \u00ebsht\u00eb n\u00eb FLAC. Ulni volumet!):<br \/>\n<video controls style=\"top: 0; left: 0; width: 100%; height: 100%; position: absolute;\">Shfletuesi juaj nuk mb\u00ebshtet videon HTML5.<source src=\"https:\/\/files.catbox.moe\/kterhd.mp4\" type=\"video\/mp4\"><\/source><\/video><br \/>\nGrafiku i spektrit:<br \/>\n<img decoding=\"async\" alt=\"Audio p\u00ebrmes Bluetooth: sa m\u00eb shum\u00eb informacione mbi profilet, kodek\u00ebt dhe pajisjet.\" src=\"\/wp-content\/uploads\/94ecbf4a6f93b6ca85ca997e2be453ad.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nZhurmat d\u00ebgjohen qart\u00eb.<\/p>\n<p>Megjithat\u00eb, n\u00ebse gjenerojm\u00eb nj\u00eb sinusoid me amplitud\u00eb m\u00eb t\u00eb ul\u00ebt, n\u00eb m\u00ebnyr\u00eb q\u00eb t\u00eb jet\u00eb m\u00eb e qet\u00eb, zhurmat do t\u00eb b\u00ebhen gjithashtu m\u00eb t\u00eb ulta, gj\u00eb q\u00eb tregon p\u00ebr nj\u00eb gam\u00eb dinamike t\u00eb gjer\u00eb:<\/p>\n<p><img decoding=\"async\" alt=\"Audio p\u00ebrmes Bluetooth: sa m\u00eb shum\u00eb informacione mbi profilet, kodek\u00ebt dhe pajisjet.\" src=\"\/wp-content\/uploads\/64d0a3f41c152f5f4d01230722fc197a.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nP\u00ebr t\u00eb d\u00ebgjuar ndryshimin midis k\u00ebng\u00ebs muzikore origjinale dhe asaj t\u00eb kompresuar, mund t\u00eb inversoni nj\u00eb nga sinjalet dhe t\u00eb p\u00ebrshkruani gjurmat p\u00ebr kanal. K\u00ebtij qasje, n\u00eb p\u00ebrgjith\u00ebsi, nuk \u00ebsht\u00eb i sakt\u00eb dhe nuk do t\u00eb jepte rezultate t\u00eb arsyeshme me kodeka m\u00eb komplekse, por p\u00ebr ADPCM \u00ebsht\u00eb mjaft i p\u00ebrshtatsh\u00ebm.<br \/>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/files.catbox.moe\/leq24q.flac\">Dallimi midis origjinalit dhe aptX<\/a><\/noindex><br \/>\nMesatarja katror e diferenc\u00ebs s\u00eb sinjaleve \u00ebsht\u00eb n\u00eb -37.4 dB, q\u00eb nuk \u00ebsht\u00eb shum\u00eb p\u00ebr muzik\u00eb t\u00eb till\u00eb t\u00eb kompresuar.<\/p>\n<h3>aptX HD<\/h3>\n<p>aptX HD nuk \u00ebsht\u00eb nj\u00eb kodek i pavarur \u2014 \u00ebsht\u00eb nj\u00eb profil i p\u00ebrmir\u00ebsuar kodimi i kodekut aptX. Ndryshimet prekin numrin e bit\u00ebve t\u00eb dedikuar p\u00ebr kodimin e gamave t\u00eb frekuencave: 10 bit p\u00ebr 0-5.5 kHz, 6 bit p\u00ebr 5.5-11 kHz, 4 bit p\u00ebr 11-16.5 kHz, 4 bit p\u00ebr 16.5-22 kHz (numrat p\u00ebr 44.1 kHz).<\/p>\n<p>Codec-i<br \/>\nFrekuenca e mostrave<br \/>\nBit depth<br \/>\nBitrate<br \/>\nMb\u00ebshtetje p\u00ebr kodim<br \/>\nMb\u00ebshtetje p\u00ebr dekodim<\/p>\n<p><b>aptX HD<\/b><br \/>\n16, 32, 44.1, 48 kHz<br \/>\n24 bit<br \/>\n192 \/ 384 \/ 529 \/ 576 kbit\/s (n\u00eb var\u00ebsi t\u00eb frekuenc\u00ebs s\u00eb mostrimit)<br \/>\nAndroid 8+*<br \/>\nDisa pajisje audio (hardware)<\/p>\n<p><i><b>*<\/b> Versionet deri n\u00eb 7 k\u00ebrkojn\u00eb modifikimin e stek\u00eb Bluetooth. Codec-i mb\u00ebshtetet vet\u00ebm n\u00ebse prodhuesi i pajisjes Android ka licencuar p\u00ebrdorimin e codec-it nga Qualcomm (n\u00ebse sistemi operativ ka biblioteka kodimi).<\/i><\/p>\n<p>M\u00eb pak e p\u00ebrhapur se aptX: duket se k\u00ebrkon licencim t\u00eb ve\u00e7ant\u00eb nga Qualcomm dhe pagesa t\u00eb ve\u00e7anta t\u00eb licencave.<\/p>\n<p>Le t\u00eb p\u00ebrs\u00ebrisim shembullin me sinusoid\u00ebn n\u00eb 12.4 kHz:<br \/>\n<img decoding=\"async\" alt=\"Audio p\u00ebrmes Bluetooth: sa m\u00eb shum\u00eb informacione mbi profilet, kodek\u00ebt dhe pajisjet.\" src=\"\/wp-content\/uploads\/fe4f8d91dcbc39af881129a9c78ca453.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nM\u00eb shum\u00eb se me aptX, por akoma me zhurm\u00eb.<\/p>\n<h2>aptX Low Latency<\/h2>\n<p>Kodek nga Qualcomm, pa lidhje me standardet aptX dhe aptX HD, sipas pak informacionit nga njer\u00ebz t\u00eb angazhuar n\u00eb zhvillimin e tij. E destinuar p\u00ebr transmetimin interaktiv t\u00eb audio me vones\u00eb t\u00eb ul\u00ebt (filma, loj\u00ebra), aty ku vonesa e z\u00ebrit nuk mund t\u00eb p\u00ebrshtatet programatikisht. Implementimet softuerike t\u00eb kodek\u00ebve dhe dekodek\u00ebve nuk ekzistojn\u00eb, mb\u00ebshtetet ekskluzivisht nga transmetuesit, marr\u00ebsit, kufjet dhe altoparlant\u00ebt, por jo nga smartphone-t dhe kompjuter\u00ebt.<\/p>\n<p>Frekuenca e mostrave<br \/>\nBitrate<br \/>\nMb\u00ebshtetje p\u00ebr kodim<br \/>\nMb\u00ebshtetje p\u00ebr dekodim<\/p>\n<p>44.1 kHz<br \/>\n276\/420 kbit\/s<br \/>\nDisa transmiter\u00eb (hardware)<br \/>\nDisa pajisje audio (hardware)<\/p>\n<h2>AAC<\/h2>\n<p>AAC, ose Advanced Audio Coding \u2014 nj\u00eb kodek p\u00ebr t\u00eb cilin nevojiten burime t\u00eb konsiderueshme kompjuterike dhe ka nj\u00eb model psikoudh\u00ebnor t\u00eb avancuar. Ai \u00ebsht\u00eb b\u00ebr\u00eb shum\u00eb i njohur p\u00ebr audio n\u00eb internet, duke u renditur i dyti pas MP3. K\u00ebrkon licencim dhe tarifat e licenc\u00ebs: $15000 nj\u00ebher\u00ebsh (ose $1000 p\u00ebr kompanit\u00eb me m\u00eb pak se 15 punonj\u00ebs) + $0.98 p\u00ebr 500000 pajisje t\u00eb para (<noindex><a rel=\"nofollow\" href=\"http:\/\/www.via-corp.com\/us\/en\/licensing\/aac\/licensefees.html\">burimi<\/a><\/noindex>).<br \/>\nKodeku \u00ebsht\u00eb standardizuar brenda specifikimeve MPEG-2 dhe MPEG-4, dhe ndryshe nga mendimi i zakonsh\u00ebm, nuk i p\u00ebrket Apple.<\/p>\n<p>Frekuenca e mostrave<br \/>\nBitrate<br \/>\nMb\u00ebshtetje p\u00ebr kodim<br \/>\nMb\u00ebshtetje p\u00ebr dekodim<\/p>\n<p>8 \u2014 96 kHz<br \/>\n8 \u2014 576 kbit\/s (p\u00ebr stereo), 256 \u2014 320 kbit\/s (tipike p\u00ebr Bluetooth)<br \/>\nmacOS, Android 7+*, iOS<br \/>\nMe nj\u00eb gam\u00eb t\u00eb gjer\u00eb pajisjesh audio (hardueri)<\/p>\n<p><i><b>*<\/b> vet\u00ebm n\u00eb pajisje q\u00eb prodhuesit e tyre kan\u00eb paguar tarifat e licenc\u00ebs<\/i><\/p>\n<p>N\u00eb iOS dhe macOS p\u00ebrdoret kodeku m\u00eb i mir\u00eb i sot\u00ebm, Apple AAC, q\u00eb siguron cil\u00ebsin\u00eb maksimale t\u00eb mundshme t\u00eb audios. N\u00eb Android p\u00ebrdoret kodeku i dyt\u00eb m\u00eb i mir\u00eb, Fraunhofer FDK AAC, por mund t\u00eb p\u00ebrdoren kodek\u00ebt e ndrysh\u00ebm harduerik\u00eb, t\u00eb inkorporuar n\u00eb platform\u00eb (SoC), me cil\u00ebsi t\u00eb panjohur kodimi. <noindex><a rel=\"nofollow\" href=\"https:\/\/www.soundguys.com\/the-ultimate-guide-to-bluetooth-headphones-aac-20296\/\">Sipas testeve t\u00eb fundit nga faqja SoundGuys<\/a><\/noindex>, cil\u00ebsia e kodimit AAC nga telefonat Android ndryshon ndjesh\u00ebm:<br \/>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/www.soundguys.com\/wp-content\/uploads\/2018\/10\/aac-enhanced-view-fr-1200x788.jpg\"><img decoding=\"async\" alt=\"Audio p\u00ebrmes Bluetooth: sa m\u00eb shum\u00eb informacione mbi profilet, kodek\u00ebt dhe pajisjet.\" src=\"\/wp-content\/uploads\/7ae72554564f215dc765272065f5c97c.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/p>\n<p>N\u00eb shumic\u00ebn e pajisjeve audio pa tel, bitraiti maksimal p\u00ebr AAC \u00ebsht\u00eb i vendosur n\u00eb 320 kbps, disa mb\u00ebshtesin vet\u00ebm 256 kbps. Bitratet e tjera jan\u00eb tep\u00ebr t\u00eb rralla.<br \/>\nAAC ofron cil\u00ebsi t\u00eb shk\u00eblqyer n\u00eb bitratet 320 dhe 256 kbps, por \u00ebsht\u00eb i ndjesh\u00ebm ndaj <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Generation_loss\">humbjeve t\u00eb kodimit t\u00eb rendit t\u00eb vazhduesh\u00ebm t\u00eb p\u00ebrmbajtjes s\u00eb kompresuar<\/a><\/noindex>, megjithat\u00eb, t\u00eb d\u00ebgjosh ndonj\u00eb dallim me origjinalin n\u00eb iOS me bitrat 256 kbps \u00ebsht\u00eb e v\u00ebshtir\u00eb edhe pas disa kodimeve t\u00eb rendit t\u00eb vazhduesh\u00ebm; me kodimin e vetme, p\u00ebr shembull, MP3 320 kbps n\u00eb AAC 256 kbps, humbjet mund t\u00eb injorohen.<br \/>\nSi\u00e7 ndodh me kodekat e tjer\u00eb Bluetooth, \u00e7do muzik\u00eb s\u00eb pari dekodohet, pastaj kodifikohet nga kodeku. Kur d\u00ebgjoni muzik\u00eb n\u00eb formatin AAC, ajo s\u00eb pari dekodohet nga OS, pastaj kodifikohet p\u00ebrs\u00ebri n\u00eb AAC p\u00ebr t'u d\u00ebrguar p\u00ebrmes Bluetooth. Kjo \u00ebsht\u00eb e nevojshme p\u00ebr t\u00eb miksuar disa rrjedha audio, p\u00ebr shembull, muzik\u00eb dhe njoftime p\u00ebr mesazhe t\u00eb reja. iOS nuk \u00ebsht\u00eb p\u00ebrjashtim. N\u00eb internet ka shum\u00eb pretendime se muzika n\u00eb formatin AAC n\u00eb iOS nuk transkodifikohet gjat\u00eb transmetimit p\u00ebrmes Bluetooth, q\u00eb \u00ebsht\u00eb e pav\u00ebrtet\u00eb.<\/p>\n<p><\/p>\n<h2>MP1\/2\/3<\/h2>\n<p>Codek\u00ebt e familjes MPEG-1\/2 Part 3 p\u00ebrfshijn\u00eb MP3-n\u00eb e njohur dhe t\u00eb p\u00ebrdorur gjer\u00ebsisht, MP2-n\u00eb m\u00eb pak t\u00eb njohur (e cila p\u00ebrdoret kryesisht n\u00eb televizionin digjital dhe radio), dhe MP1-n\u00eb krejt t\u00eb panjohur.<\/p>\n<p>Codek\u00ebt e vjet\u00ebr MP1 dhe MP2 nuk mb\u00ebshteten fare: nuk arrita t\u00eb gjej asnj\u00eb kufje dhe asnj\u00eb p\u00ebrcjell\u00ebs Bluetooth q\u00eb kodon ose dekodon ato.<br \/>\nDekodimi i MP3 p\u00ebrmbahet nga disa kufje, por kodimi nuk mb\u00ebshtetet n\u00eb asnj\u00eb p\u00ebrcjell\u00ebs t\u00eb sistemeve operative moderne. Duket se p\u00ebrcjell\u00ebsi i pal\u00ebve t\u00eb treta BlueSoleil p\u00ebr Windows mund t\u00eb kodoj\u00eb n\u00eb MP3, n\u00ebse ndihmon p\u00ebr t\u00eb ndryshuar manualisht skedarin e konfigurimit, por instalimi i tij m\u00eb \u00e7on n\u00eb BSoD n\u00eb Windows 10. Konkluzion \u2013 kodeku nuk mund t\u00eb p\u00ebrdoret n\u00eb thelb p\u00ebr audio Bluetooth.<br \/>\nM\u00eb par\u00eb, n\u00eb vitet 2006-2008, para p\u00ebrhapjes s\u00eb standardit A2DP n\u00eb pajisje, njer\u00ebzit d\u00ebgjonin muzik\u00eb MP3 me kufjet Nokia BH-501 p\u00ebrmes programit MSI BluePlayer, i cili ishte i disponuesh\u00ebm n\u00eb Symbian dhe Windows Mobile. N\u00eb at\u00eb koh\u00eb, arkitektura e sistemit operacional t\u00eb smartphone-ve lejonte hyrjen n\u00eb shum\u00eb funksione t\u00eb nivelit t\u00eb ul\u00ebt, dhe n\u00eb Windows Mobile madje mund t\u00eb instaloheshin p\u00ebrcjell\u00ebsit Bluetooth t\u00eb pal\u00ebve t\u00eb treta.<\/p>\n<p>Patenti m\u00eb t\u00eb fundit p\u00ebr kodekun MP3 skadoi, p\u00ebrdorimi i kodekut nuk k\u00ebrkon pagesa licencash q\u00eb nga 23 prilli 2017.<\/p>\n<blockquote><p>N\u00ebse patenti m\u00eb jet\u00ebgjat\u00eb i p\u00ebrmendur n\u00eb referencat p\u00ebrkat\u00ebse merret si mas\u00eb, at\u00ebher\u00eb teknologjia MP3 u b\u00eb pa patent\u00eb n\u00eb Shtetet e Bashkuara m\u00eb 16 prill 2017 kur skadoi Patenti amerikan 6,009,399, i mbajtur dhe menaxhuar nga Technicolor.<\/p><\/blockquote>\n<p><i>Burimi: <noindex><a rel=\"nofollow\" href=\"https:\/\/www.iis.fraunhofer.de\/en\/ff\/amm\/prod\/audiocodec\/audiocodecs\/mp3.html\">www.iis.fraunhofer.de\/en\/ff\/amm\/prod\/audiocodec\/audiocodecs\/mp3.html<\/a><\/noindex><\/i><\/p>\n<p>Frekuenca e mostrave<br \/>\nBitrate<br \/>\nMb\u00ebshtetje p\u00ebr kodim<br \/>\nMb\u00ebshtetje p\u00ebr dekodim<\/p>\n<p>16 \u2014 48 kHz<br \/>\n8 \u2014 320 kbps<br \/>\nNuk mb\u00ebshtetet askund<br \/>\nDisa pajisje audio (hardware)<\/p>\n<h2>LDAC<\/h2>\n<p>Kodeku i ri dhe aktiv i promovuar \"Hi-Res\" nga Sony, q\u00eb mb\u00ebshtet frekuencat e kampionimit deri n\u00eb 96 kHz dhe nj\u00eb sakt\u00ebsi 24-bit, me nj\u00eb bitrate deri n\u00eb 990 kbps. Reklamohet si kodeku audiophile, si z\u00ebvend\u00ebsim p\u00ebr kodek\u00ebt Bluetooth ekzistues. Ka funksionin e p\u00ebrshtatjes s\u00eb adaptiv\u00eb t\u00eb bitrate-it, n\u00eb var\u00ebsi t\u00eb kushteve t\u00eb transmetimit radio.<\/p>\n<p>Enkoderi LDAC (<noindex><a rel=\"nofollow\" href=\"https:\/\/android.googlesource.com\/platform\/external\/libldac\/\">libldac<\/a><\/noindex>) \u00ebsht\u00eb pjes\u00eb e standardit t\u00eb ofrimit t\u00eb Android, prandaj kodimi mb\u00ebshtetet n\u00eb \u00e7do telefon Android, duke filluar nga versioni 8 i sistemit operative. Dekoder\u00ebt softuerik\u00eb nuk jan\u00eb n\u00eb dispozicion publikisht, specifikimi i kodekut nuk \u00ebsht\u00eb i qassh\u00ebm p\u00ebr publikun e gjer\u00eb, megjithat\u00eb, nga nj\u00eb shqyrtim i par\u00eb i enkoderit, struktura e brendshme e kodekut \u00ebsht\u00eb e ngjashme me <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Adaptive_Transform_Acoustic_Coding#ATRAC9\">ATRAC9<\/a><\/noindex> \u2014 kodek nga Sony, i p\u00ebrdorur n\u00eb PlayStation 4 dhe Vita: t\u00eb dy punojn\u00eb n\u00eb nj\u00eb frekuenc\u00eb, p\u00ebrdorin transformimin e modifikuar t\u00eb kosinusit diskret (MDCT) dhe kompresimin q\u00eb p\u00ebrdor algoritmin e Huffman.<\/p>\n<p>Mb\u00ebshtetje p\u00ebr LDAC \u00ebsht\u00eb kryesisht e disponueshme nga kufjet nga Sony. Mund\u00ebsia p\u00ebr dekodimin LDAC ndonj\u00ebher\u00eb shfaqet n\u00eb kufjet dhe DAC t\u00eb prodhuesve t\u00eb tjer\u00eb, por shum\u00eb rrall\u00eb.<\/p>\n<p>Frekuenca e mostrave<br \/>\nBitrate<br \/>\nMb\u00ebshtetje p\u00ebr kodim<br \/>\nMb\u00ebshtetje p\u00ebr dekodim<\/p>\n<p>44.1 \u2014 96 kHz<br \/>\n303\/606\/909 kbps (p\u00ebr 44.1 dhe 88.2 kHz), 330\/660\/990 kbps (p\u00ebr 48 dhe 96 kHz)<br \/>\nAndroid 8+<br \/>\nDisa kufje nga Sony dhe disa pajisje t\u00eb tjera (hardueri)<\/p>\n<p>Marketingu i LDAC si nj\u00eb kodek Hi-Res d\u00ebmton p\u00ebrb\u00ebr\u00ebsin e tij teknik: \u00ebsht\u00eb e pazakont\u00eb t\u00eb shpenzosh bitrate p\u00ebr t\u00eb transmetuar frekuenca q\u00eb nuk d\u00ebgjohen nga veshi njer\u00ebzor dhe nj\u00eb precizitet m\u00eb t\u00eb lart\u00eb, p\u00ebrderisa nuk mjafton p\u00ebr t\u00eb transmetuar cil\u00ebsin\u00eb CD (44.1\/16) pa humbje. Me fat, kodeku ka dy m\u00ebnyra funksionimi: transmetimi i audios CD dhe transmetimi i audios Hi-Res. N\u00eb rastin e par\u00eb, vet\u00ebm 44.1 kHz\/16 bit transmetohet n\u00ebp\u00ebr aj\u00ebr.<\/p>\n<p>Pasiq\u00eb ekziston nj\u00eb dekoder LDAC programatik q\u00eb nuk \u00ebsht\u00eb n\u00eb dispozicion p\u00ebr publikun, \u00ebsht\u00eb e pamundur t\u00eb testohet kodeku pa pajisje shtes\u00eb q\u00eb dekurdo LDAC. Sipas rezultateve t\u00eb testeve t\u00eb LDAC n\u00eb DAC-n\u00eb q\u00eb e mb\u00ebshtet k\u00ebt\u00eb, e lidhur nga inxhinier\u00ebt e faqes SoundGuys.com p\u00ebrmes daljes digitale dhe duke regjistruar tingullin e prodhuar me sinjale testuese, LDAC me 660 dhe 990 kbit\/s n\u00eb modalitetin e cil\u00ebsis\u00eb CD ofron nj\u00eb raport sinjal\/zhurm\u00eb pak m\u00eb t\u00eb mir\u00eb se sa aptX HD.<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.soundguys.com\/wp-content\/uploads\/2018\/10\/LDAC-990-CD-Noise-Floor.jpg\"><img decoding=\"async\" alt=\"Audio p\u00ebrmes Bluetooth: sa m\u00eb shum\u00eb informacione mbi profilet, kodek\u00ebt dhe pajisjet.\" src=\"\/wp-content\/uploads\/819853ab9d92e9631454082ade245628.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><br \/>\n<i>Burimi: <noindex><a rel=\"nofollow\" href=\"https:\/\/www.soundguys.com\/ldac-ultimate-bluetooth-guide-20026\/\">www.soundguys.com\/ldac-ultimate-bluetooth-guide-20026<\/a><\/noindex><\/i><\/p>\n<p>LDAC gjithashtu mb\u00ebshtet bitrejtin dinamik jasht\u00eb profileve t\u00eb vendosur - nga 138 kbit\/s deri n\u00eb 990 kbit\/s, por sa e di un\u00eb, n\u00eb Android p\u00ebrdoren vet\u00ebm profilet e standardizuara 303\/606\/909 dhe 330\/660\/990 kbit\/s.<\/p>\n<h2>Kodek\u00ebt e tjer\u00eb<\/h2>\n<p>Kodek\u00ebt e tjer\u00eb A2DP nuk kan\u00eb marr\u00eb p\u00ebrhapje t\u00eb gjer\u00eb. Mb\u00ebshtetja e tyre \u00ebsht\u00eb ose praktiksht e pamjaftueshme, ose e pranishme vet\u00ebm n\u00eb modele t\u00eb caktuara t\u00eb kufjeve dhe smartphone-ve.<br \/>\nKodi ATRAC i standardizuar n\u00eb A2DP kurr\u00eb nuk \u00ebsht\u00eb p\u00ebrdorur si kod p\u00ebr Bluetooth nga vet\u00eb Sony; kodek\u00ebt Samsung HD, Samsung Scalable dhe Samsung UHQ-BT kan\u00eb mb\u00ebshtetje shum\u00eb t\u00eb kufizuar nga pajisjet transmetuese dhe marr\u00ebse, nd\u00ebrsa HWA LHDC \u00ebsht\u00eb shum\u00eb i ri dhe mb\u00ebshtetet vet\u00ebm nga tre pajisje.<\/p>\n<p><\/p>\n<h1>Mb\u00ebshtetje p\u00ebr kodek\u00ebt nga pajisjet audio<\/h1>\n<p>Nuk t\u00eb gjith\u00eb prodhuesit publikojn\u00eb informacion t\u00eb sakt\u00eb n\u00eb lidhje me kodek\u00ebt q\u00eb mb\u00ebshtesin kufjet, kolonat, ruterat ose transmituesit pa tel. Ndonj\u00ebher\u00eb ndodh q\u00eb mb\u00ebshtetja p\u00ebr nj\u00eb kodek t\u00eb caktuar ekziston vet\u00ebm p\u00ebr transmetim, por jo p\u00ebr pranimin (e r\u00ebnd\u00ebsishme p\u00ebr transmetuesit-ruter\u00eb t\u00eb kombinuar), edhe pse prodhuesi thjesht deklaron \u2018mb\u00ebshtetje\u2019, pa v\u00ebrejtje t\u00eb tjera (mendoj se kjo \u00ebsht\u00eb p\u00ebr shkak t\u00eb licencimit t\u00eb ndar\u00eb t\u00eb enkoduesve dhe dekoduesve t\u00eb disa kodek\u00ebve). N\u00eb pajisjet m\u00eb t\u00eb lira, mund t\u00eb mos ekzistoj\u00eb fare mb\u00ebshtetje p\u00ebr aptX t\u00eb shpallur.<\/p>\n<p>Fatkeq\u00ebsisht, n\u00eb nd\u00ebrfaqet e shumic\u00ebs s\u00eb sistemeve operative nuk shfaqet asnj\u00ebher\u00eb kodeku q\u00eb po p\u00ebrdoret. Informacioni n\u00eb lidhje me k\u00ebt\u00eb \u00ebsht\u00eb i disponuesh\u00ebm vet\u00ebm n\u00eb Android, duke filluar nga versioni 8, dhe macOS. Megjithat\u00eb, edhe n\u00eb k\u00ebto OS do t\u00eb shfaqen vet\u00ebm ata kodek\u00eb q\u00eb mb\u00ebshtet si telefoni\/kompjuteri, ashtu edhe kufjet.<\/p>\n<p>Si mund ta dini se cilat kodek\u00eb mb\u00ebshtet pajisja? Regjistroni dhe analizoni dump-in e trafikut me parametrit e pajtimit A2DP!<br \/>\nKjo mund t\u00eb b\u00ebhet n\u00eb Linux, macOS dhe Android. N\u00eb Linux mund t\u00eb p\u00ebrdorni Wireshark ose hcidump, n\u00eb macOS \u2014 Bluetooth Explorer, nd\u00ebrsa n\u00eb Android \u2014 funksionin standard p\u00ebr ruajtjen e dump-it HCI Bluetooth, i cili \u00ebsht\u00eb i disponibil n\u00eb mjetet p\u00ebr zhvilluesit. Do t\u00eb merrni nj\u00eb dump n\u00eb formatin btsnoop, i cili mund t\u00eb ngarkohet n\u00eb analizuesin Wireshark.<br \/>\n<b>K\u00ebrkojm\u00eb v\u00ebmendje<\/b>: nj\u00eb dump i sakt\u00eb mund t\u00eb merret vet\u00ebm duke u lidhur me telefonin\/kompjuterin me kufjet\/kolonat (sa e \u00e7uditshme q\u00eb mund t\u00eb duket)! Kufjet mund t\u00eb vendosin vet\u00eb lidhjen me telefonin, dhe n\u00eb k\u00ebt\u00eb rast ato do t\u00eb k\u00ebrkojn\u00eb list\u00ebn e kodek\u00ebve nga telefoni, e jo e kund\u00ebrta. P\u00ebr t\u00eb regjistruar sigurisht nj\u00eb dump t\u00eb sakt\u00eb, s\u00eb pari \u00e7aktivizoni lidhjen me pajisjen, dhe pastaj, gjat\u00eb regjistrimit t\u00eb dump-it, lidheni telefonin me kufjet.<\/p>\n<p>P\u00ebrdorni filtrin e m\u00ebposht\u00ebm p\u00ebr t\u00eb p\u00ebrjashtuar trafikun jo relevant:<\/p>\n<pre><code class=\"plaintext\">btavdtp.signal_id<\/code><\/pre>\n<p>Si rezultat, duhet t\u00eb shihni di\u00e7ka t\u00eb ngjashme:<br \/>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/habrastorage.org\/webt\/fv\/ku\/xs\/fvkuxsqcdwtxznupploqmldv9qm.png\"><img decoding=\"async\" alt=\"Audio p\u00ebrmes Bluetooth: sa m\u00eb shum\u00eb informacione mbi profilet, kodek\u00ebt dhe pajisjet.\" src=\"\/wp-content\/uploads\/b598f3282b36d7761c5f4fa63802d57e.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/p>\n<p>N\u00eb \u00e7do pik\u00eb t\u00eb komand\u00ebs GetCapabilities mund t\u00eb klikoni dhe t\u00eb shihni specifikimet e detajuara t\u00eb kodek\u00ebve.<br \/>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/habrastorage.org\/webt\/7s\/9a\/xa\/7s9axaeztya_dr2irptfi68ejxs.png\"><img decoding=\"async\" alt=\"Audio p\u00ebrmes Bluetooth: sa m\u00eb shum\u00eb informacione mbi profilet, kodek\u00ebt dhe pajisjet.\" src=\"\/wp-content\/uploads\/e5037fe18ae95ed7f047f4b8b8fcb2c8.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/p>\n<p>Wireshark nuk njeh t\u00eb gjitha identifikuesit e kodek\u00ebve, prandaj disa kodek\u00eb do t\u00eb duhet t\u00eb shifrohen manualisht, duke par\u00eb tabel\u00ebn e identifikuesve m\u00eb posht\u00eb:<\/p>\n<pre><code class=\"plaintext\">Obligator: \n0x00 - SBC\n\nOpcional: \n0x01 - MPEG-1,2 (n\u00eb t\u00eb njohur MP3)\n0x02 - MPEG-2,4 (n\u00eb t\u00eb njohur AAC)\n0x04 - ATRAC\n\nSpecifike p\u00ebr furnizuesin: \n0xFF 0x004F 0x01 - aptX\n0xFF 0x00D7 0x24 - aptX HD\n0xFF 0x000A 0x02 - aptX Low Latency\n0xFF 0x00D7 0x02 - aptX Low Latency\n0xFF 0x000A 0x01 - FastStream\n0xFF 0x012D 0xAA - LDAC\n0xFF 0x0075 0x0102 - Samsung HD\n0xFF 0x0075 0x0103 - Samsung Scalable Codec\n0xFF 0x053A 0x484C - Savitech LHDC\n\n0xFF 0x000A 0x0104 - ID i Codec CSR True Wireless Stereo v3 p\u00ebr AAC\n0xFF 0x000A 0x0105 - ID i Codec CSR True Wireless Stereo v3 p\u00ebr MP3\n0xFF 0x000A 0x0106 - ID i Codec CSR True Wireless Stereo v3 p\u00ebr aptX<\/code><\/pre>\n<p>P\u00ebr t\u00eb analizuar dump-et automatikisht, krijova nj\u00eb sh\u00ebrbim q\u00eb analizon gjith\u00e7ka automatikisht: <noindex><a rel=\"nofollow\" href=\"https:\/\/btcodecs.valdikss.org.ru\">btcodecs.valdikss.org.ru<\/a><\/noindex><\/p>\n<p><\/p>\n<h1>Krahasimi i kodek\u00ebve. Cili kodek \u00ebsht\u00eb m\u00eb i mir\u00eb?<\/h1>\n<p>\u00c7do kodek ka avantazhet dhe disavantazhet e tij.<br \/>\naptX dhe aptX HD p\u00ebrdorin profile t\u00eb sakta q\u00eb nuk mund t\u00eb ndryshohen pa modifikimin e enkoderit dhe dekoderit. As prodhuesi i telefonit, as prodhuesi i kufjeve nuk kan\u00eb mund\u00ebsi t\u00eb ndryshojn\u00eb bitratin ose koeficient\u00ebt e kodimit t\u00eb aptX. Pronari i kodekut, Qualcomm, ndan nj\u00eb enkoder referenc\u00eb n\u00eb form\u00eb biblioteke. K\u00ebto fakte jan\u00eb pika t\u00eb forta t\u00eb aptX \u2014 e dini paraprakisht se cil\u00ebsia e z\u00ebrit q\u00eb do t\u00eb merrni, pa asnj\u00eb \u00abpor\u00bb.<\/p>\n<p>N\u00eb t\u00eb v\u00ebrtet\u00eb, SBC ofron nj\u00eb shumic\u00eb opsionesh t\u00eb p\u00ebrshtatshme, me nj\u00eb bitrate dinamik (enkoduesi mund t\u00eb ulet parametri bitpool n\u00ebse frekuenca e radios \u00ebsht\u00eb e ngarkuar), dhe nuk ka profile t\u00eb ngurta t\u00eb caktuara, por ka vet\u00ebm ato t\u00eb rekomanduara p\u00ebr \"cil\u00ebsi mesatare\" dhe \"cil\u00ebsi t\u00eb lart\u00eb\", t\u00eb cilat u shtuan n\u00eb specifikimin A2DP n\u00eb vitin 2003. \"Cil\u00ebsia e lart\u00eb\" nuk \u00ebsht\u00eb m\u00eb aq e lart\u00eb sipas standardeve t\u00eb sotme, dhe shumica e stak\u00ebve Bluetooth nuk lejojn\u00eb p\u00ebrdorimin e parametrave m\u00eb t\u00eb mir\u00eb se ato n\u00eb profilin \"cil\u00ebsi e lart\u00eb\", ndon\u00ebse nuk ka kufizime teknike p\u00ebr k\u00ebt\u00eb.<br \/>\nBluetooth SIG nuk ka nj\u00eb enkoder referues SBC si nj\u00eb bibliotek\u00eb, dhe prodhuesit e implementojn\u00eb at\u00eb vet\u00eb.<br \/>\nK\u00ebto jan\u00eb dob\u00ebsit\u00eb e SBC - nuk \u00ebsht\u00eb kurr\u00eb e sigurt se \u00e7far\u00eb cil\u00ebsie z\u00ebri mund t\u00eb pritet nga nj\u00eb pajisje e caktuar. SBC mund t\u00eb ofroj\u00eb si cil\u00ebsi t\u00eb ul\u00ebt ashtu edhe cil\u00ebsi t\u00eb shum\u00eb t\u00eb lart\u00eb z\u00ebri, por kjo e fundit nuk mund t\u00eb arrihet pa \u00e7aktivizimin ose anashkalimin e kufizimeve artificiale t\u00eb stak\u00ebve Bluetooth.<\/p>\n<p>Situata me AAC \u00ebsht\u00eb e dyshimt\u00eb: nga nj\u00ebra an\u00eb, teoria thot\u00eb se kodeku duhet t\u00eb siguroj\u00eb cil\u00ebsi q\u00eb nuk dallon nga origjinali, por praktika, sipas testeve t\u00eb laborator\u00ebve t\u00eb SoundGuys n\u00eb pajisje t\u00eb ndryshme Android, nuk e konfirmon k\u00ebt\u00eb. M\u00eb s\u00eb shumti, fajin e ka cil\u00ebsia e dob\u00ebt e koduesve audio t\u00eb integruar n\u00eb \u00e7ipset e telefonave. Ka sens t\u00eb p\u00ebrdoret AAC vet\u00ebm n\u00eb pajisjet Apple, nd\u00ebrsa n\u00eb Android \u00ebsht\u00eb m\u00eb mir\u00eb t\u00eb kufizohemi n\u00eb aptX dhe LDAC.<\/p>\n<p>Pajisjet q\u00eb mb\u00ebshtesin kodek\u00ebt alternativ\u00eb zakonisht jan\u00eb t\u00eb cil\u00ebsis\u00eb s\u00eb lart\u00eb, thjesht sepse p\u00ebr pajisje shum\u00eb t\u00eb lira dhe t\u00eb dob\u00ebta nuk ka kuptim t\u00eb paguash taksat e licencave p\u00ebr t'i p\u00ebrdorur k\u00ebto kodek\u00eb. Sipas testeve t\u00eb mia, SBC ting\u00ebllon shum\u00eb mir\u00eb n\u00eb pajisje cil\u00ebsore.<\/p>\n<p>Kam krijuar nj\u00eb sh\u00ebrbim n\u00eb internet q\u00eb kodon audio n\u00eb SBC, aptX dhe aptX HD n\u00eb koh\u00eb reale, direkt n\u00eb shfletues. Me ndihm\u00ebn e tij, do t\u00eb jeni n\u00eb gjendje t\u00eb testoni k\u00ebta kodek\u00eb audio pa e transmetuar me t\u00eb v\u00ebrtet\u00eb audio p\u00ebrmes Bluetooth-it, duke p\u00ebrdorur \u00e7do kufje me tel, altoparlant\u00eb dhe muzik\u00ebn tuaj t\u00eb preferuar, si dhe t\u00eb ndryshoni parametrat e kodimit gjat\u00eb riprodhimit t\u00eb audio:<br \/>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/btcodecs.valdikss.org.ru\/sbc-encoder\/\">btcodecs.valdikss.org.ru\/sbc-encoder<\/a><\/noindex><br \/>\nSh\u00ebrbimi p\u00ebrdor bibliotekat e kodimit SBC nga projekti BlueZ dhe libopenaptx nga ffmpeg, t\u00eb cilat jan\u00eb kompiluara n\u00eb WebAssembly dhe JavaScript nga C, p\u00ebrmes emscripten, p\u00ebr t\u00eb funksionuar n\u00eb shfletues. Kush mund t\u00eb imagjinoj\u00eb nj\u00eb t\u00eb ardhme t\u00eb till\u00eb!<\/p>\n<p>Ja si duket:<br \/>\n<video controls style=\"top: 0; left: 0; width: 100%; height: 100%; position: absolute;\">Shfletuesi juaj nuk mb\u00ebshtet videon HTML5.<source src=\"https:\/\/files.catbox.moe\/9e9q8f.mp4\" type=\"video\/mp4\"><\/source><\/video><br \/>\nVini re si ndryshon nivele i zhurm\u00ebs pas 20 kHz me kodek\u00ebt e ndrysh\u00ebm. N\u00eb skedarin origjinal MP3, frekuencat mbi 20 kHz mungojn\u00eb.<\/p>\n<p>Provoni t\u00eb kaloni midis kodek\u00ebve dhe vler\u00ebsoni n\u00ebse d\u00ebgjoni ndryshimin midis origjinalit, SBC 53 Joint Stereo (profili standard dhe m\u00eb i zakonsh\u00ebm), dhe aptX\/aptX HD.<\/p>\n<p><\/p>\n<h2>D\u00ebgjoj ndryshimin midis kodek\u00ebve <i>n\u00eb kufje<\/i>!<\/h2>\n<p>Njer\u00ebzit q\u00eb nuk d\u00ebgjojn\u00eb ndryshimin midis kodek\u00ebve gjat\u00eb testimit p\u00ebrmes sh\u00ebrbimit n\u00eb internet, jan\u00eb t\u00eb sigurt se e d\u00ebgjojn\u00eb at\u00eb kur d\u00ebgjojn\u00eb muzik\u00eb n\u00eb kufjet pa tel. Fatkeq\u00ebsisht, kjo nuk \u00ebsht\u00eb nj\u00eb shaka dhe as efekt placebo: ndryshimi \u00ebsht\u00eb me t\u00eb v\u00ebrtet\u00eb i duksh\u00ebm, por i shkaktuar nga jo dallimet <i>e kodek\u00ebve<\/i>.<\/p>\n<p>Shumica d\u00ebrrmuese e \u00e7ipeve Bluetooth-audio, t\u00eb p\u00ebrdorura n\u00eb pajisjet wireless, jan\u00eb t\u00eb pajisura me nj\u00eb procesor dixhital t\u00eb sinjaleve (Digital Signal Processor, DSP), i cili realizon ekualizuesin, kompresorin, zgjeruesin e stereos dhe gj\u00ebra t\u00eb tjera, t\u00eb destinuara p\u00ebr t\u00eb p\u00ebrmir\u00ebsuar (ose ndryshuar) tingullin. Prodhuesit e pajisjeve Bluetooth mund t\u00eb personalizojn\u00eb DSP <i>p\u00ebr \u00e7do kodek ve\u00e7mas<\/i>, dhe kur kaloni midis kodek\u00ebve, d\u00ebgjuesi do t\u00eb ket\u00eb ndjenj\u00ebn se po d\u00ebgjon dallime n\u00eb funksionimin e kodek\u00ebve, kur n\u00eb t\u00eb v\u00ebrtet\u00eb \u00ebsht\u00eb duke d\u00ebgjuar cil\u00ebsime t\u00eb ndryshme t\u00eb DSP.<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habrastorage.org\/webt\/0j\/75\/rv\/0j75rvrbutguojyxx9yu0s-uang.png\"><img decoding=\"async\" alt=\"Audio p\u00ebrmes Bluetooth: sa m\u00eb shum\u00eb informacione mbi profilet, kodek\u00ebt dhe pajisjet.\" src=\"\/wp-content\/uploads\/6a8f7ab3ef52753cd32f398c023cd601.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><br \/>\n<i>Bateria e p\u00ebrpunimit t\u00eb tingullit DSP Kalimba n\u00eb \u00e7ipat e prodhimit CSR\/Qualcomm<\/i><\/p>\n<p><img decoding=\"async\" alt=\"Audio p\u00ebrmes Bluetooth: sa m\u00eb shum\u00eb informacione mbi profilet, kodek\u00ebt dhe pajisjet.\" src=\"\/wp-content\/uploads\/5dd07986d55d2e7e65697ab7114a942b.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Aktivizimi i funksioneve t\u00eb ndryshme t\u00eb DSP p\u00ebr \u00e7do kodek dhe dalje ve\u00e7mas<\/i><\/p>\n<p>Disa pajisje n\u00eb segmentin premium vijn\u00eb me nj\u00eb program q\u00eb lejon t\u00eb rregullohen parametrat e DSP, por shumica e kufjeve m\u00eb t\u00eb lira nuk e kan\u00eb k\u00ebt\u00eb mund\u00ebsi, dhe p\u00ebrdoruesit nuk mund t\u00eb \u00e7aktivizojn\u00eb p\u00ebrpunimin pasues t\u00eb tingullit me mjete standarde.<\/p>\n<p><\/p>\n<h2>Karakteristikat funksionale t\u00eb pajisjeve<\/h2>\n<p>Versioni modern i standardit A2DP ka <b>funkcionin \"regullimit absolut t\u00eb volumentit\"<\/b> \u2014 kontrolli t\u00eb volumit t\u00eb pajisjes me komanda t\u00eb specializuara t\u00eb protokollit AVRCP, i cili rregullon forcimin e shkall\u00ebs dal\u00ebse, n\u00eb vend t\u00eb zvog\u00eblimit programatik t\u00eb volumit t\u00eb audio. N\u00ebse, kur ndryshoni volumin n\u00eb kufje, ndryshimi nuk sinkronizohet me volumin n\u00eb telefon, kjo do t\u00eb thot\u00eb se kufjet ose telefoni juaj nuk e mb\u00ebshtesin k\u00ebt\u00eb funksion. N\u00eb k\u00ebt\u00eb rast, ka kuptim t\u00eb d\u00ebgjoni muzik\u00eb gjithmon\u00eb me volumin maksimal n\u00eb telefon, duke rregulluar v\u00ebrtet volumin me butonat e kufjeve \u2014 n\u00eb k\u00ebt\u00eb rast, raporti sinjal\/zhurm\u00eb do t\u00eb jet\u00eb m\u00eb i mir\u00eb dhe cil\u00ebsia e audios <i>duhet t\u00eb jet\u00eb<\/i> m\u00eb lart.<br \/>\nN\u00eb realitet, ndodhin situata t\u00eb trishtueshme. N\u00eb kufjet e mia RealForce OverDrive D1, p\u00ebr SBC \u00ebsht\u00eb aktivizuar nj\u00eb kompresor i fort\u00eb, dhe rritja e volumin \u00e7on n\u00eb rritjen e nivelit t\u00eb tingujve t\u00eb qet\u00eb, nd\u00ebrsa volumi i tingujve t\u00eb zhurmsh\u00ebm nuk ndryshon (ka kompresim t\u00eb sinjalit). P\u00ebr k\u00ebt\u00eb arsye, duhet t\u00eb vendos volumin n\u00eb kompjuter\u00eb rreth n\u00eb gjysm\u00eb, n\u00eb k\u00ebt\u00eb rast efekti i kompresimit \u00ebsht\u00eb pothuajse i paduksh\u00ebm.<br \/>\nSipas v\u00ebzhgimeve t\u00eb mia, t\u00eb gjitha kufjet me kodek t\u00eb shtuar mb\u00ebshtesin funksionin e rregullimit absolut t\u00eb volumit, duket se kjo \u00ebsht\u00eb nj\u00eb nga k\u00ebrkesat p\u00ebr certifikimin e kodek\u00ebve.<\/p>\n<p>Disa kufje mb\u00ebshtesin <b>lidhen me dy pajisje nj\u00ebkoh\u00ebsisht<\/b>. Kjo lejon, p\u00ebr shembull, t\u00eb d\u00ebgjoni muzik\u00eb nga kompjuteri dhe t\u00eb merrni thirrje nga telefoni. Megjithat\u00eb, duhet t\u00eb dini se n\u00eb k\u00ebt\u00eb m\u00ebnyr\u00eb aktivizohen kodek\u00ebt alternativ\u00eb dhe p\u00ebrdoret vet\u00ebm SBC.<\/p>\n<p><b>Funksioni AVDTP 1.3 Delay Reporting<\/b> lejon kufjet t\u00eb raportojn\u00eb vones\u00ebn n\u00eb pajisjen transmetuese, me t\u00eb cil\u00ebn q\u00ebndron z\u00ebri aktualisht. Kjo lejon p\u00ebrshtatjen e sinkronizimit t\u00eb audios me videon gjat\u00eb shikimit t\u00eb skedar\u00ebve video: n\u00eb rastet e problemeve me transmetimin p\u00ebrmes val\u00ebve radio, audio nuk do t\u00eb ngec\u00eb pas videos, p\u00ebrkundrazi, video do t\u00eb ngadal\u00ebsohet nga playeri i videos derisa audio dhe video t\u00eb sinkronizohen p\u00ebrs\u00ebri.<br \/>\nFunksioni mb\u00ebshtetet nga shum\u00eb kufje, Android 9+ dhe Linux me PulseAudio 12.0+. Nuk kam informacion p\u00ebr mb\u00ebshtetje t\u00eb funksionit n\u00eb platforma t\u00eb tjera.<\/p>\n<p><\/p>\n<h1>Komunikimi dyansh\u00ebm p\u00ebrmes Bluetooth. Transmetimi i z\u00ebrit.<\/h1>\n<p>P\u00ebr transferimin e z\u00ebrit p\u00ebr Bluetooth p\u00ebrdoret Synchronous Connection Oriented (SCO) \u2014 nj\u00eb transmetim sinkron me paracaktime t\u00eb lidhjes. Ky mod p\u00ebrdorimi lejon q\u00eb tingulli dhe z\u00ebri t\u00eb transmetohen n\u00eb m\u00ebnyr\u00eb t\u00eb rregullt, me nj\u00eb shpejt\u00ebsi simetrike d\u00ebrgimi dhe pranimi, pa pritur konfirmimin e transferimit dhe ringjalljen e paketave. Kjo zvog\u00eblon vones\u00ebn e p\u00ebrgjithshme t\u00eb transferimit t\u00eb audios p\u00ebrmes kanalit radio, por vendos kufizime t\u00eb r\u00ebnd\u00ebsishme n\u00eb sasin\u00eb e t\u00eb dh\u00ebnave t\u00eb transmetuara p\u00ebr nj\u00eb nj\u00ebsi kohe dhe ndikon negativisht n\u00eb cil\u00ebsin\u00eb e saj.<br \/>\nKur p\u00ebrdoret ky mod, z\u00ebri dhe audio transmetohen me cil\u00ebsi t\u00eb nj\u00ebjt\u00eb.<br \/>\nFatkeq\u00ebsisht, deri n\u00eb vitin 2019, cil\u00ebsia e transferimit t\u00eb z\u00ebrit p\u00ebrmes Bluetooth ende mbetet e ul\u00ebt dhe nuk \u00ebsht\u00eb e qart\u00eb pse Bluetooth SIG nuk po b\u00ebn asgj\u00eb p\u00ebr k\u00ebt\u00eb.<\/p>\n<h5>CVSD<\/h5>\n<p>Kodi baz\u00eb p\u00ebr transferimin e z\u00ebrit CVSD u standardizua n\u00eb vitin 2002 dhe mb\u00ebshtetet nga t\u00eb gjitha pajisjet me komunikim n\u00eb dy drejtime p\u00ebrmes Bluetooth. Ai ofron transferimin e audios me nj\u00eb frekuenc\u00eb kampionimi prej 8 kHz, e cila i p\u00ebrshtatet cil\u00ebsis\u00eb s\u00eb telefonis\u00eb tradicionale me tel. <\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/files.catbox.moe\/c4h77s.flac\">Shembulli i regjistrimit n\u00eb k\u00ebt\u00eb kod<\/a><\/noindex>.<\/p>\n<h5>mSBC<\/h5>\n<p>Kodeku i shtuar mSBC u standardizua n\u00eb vitin 2009, dhe n\u00eb vitin 2010 shfaqen \u00e7ipat q\u00eb e p\u00ebrdorin at\u00eb p\u00ebr transmetimin e z\u00ebrit. mSBC mb\u00ebshtetet gjer\u00ebsisht nga pajisje t\u00eb ndryshme.<br \/>\nKy nuk \u00ebsht\u00eb nj\u00eb kodek i pavarur, por nj\u00eb SBC i zakonsh\u00ebm nga standardi A2DP, me nj\u00eb profil t\u00eb fiksuar t\u00eb kodimit: 16 kHz, mono, bitpool 26.<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/files.catbox.moe\/b09joy.flac\">Shembulli i regjistrimit n\u00eb k\u00ebt\u00eb kod<\/a><\/noindex>.<\/p>\n<p>Nuk \u00ebsht\u00eb p\u00ebrmbush\u00ebs, por \u00ebsht\u00eb shum\u00eb m\u00eb i mir\u00eb se CVSD, megjithat\u00eb akoma \u00ebsht\u00eb e pak\u00ebndshme ta p\u00ebrdor\u00ebsh p\u00ebr komunikim n\u00eb internet, ve\u00e7an\u00ebrisht kur p\u00ebrdor kufje p\u00ebr t\u00eb komunikuar n\u00eb loj\u00eb \u2014 z\u00ebri i loj\u00ebs gjithashtu do t\u00eb transmetohet me nj\u00eb frekuenc\u00eb disektimi prej 16 kHz.<\/p>\n<p>FastStreamKompania CSR vendosi t\u00eb zhvillonte iden\u00eb e rip\u00ebrdorimit t\u00eb SBC. P\u00ebr t\u00eb kap\u00ebrcyer kufizimet e protokollit SCO dhe p\u00ebr t\u00eb p\u00ebrdorur bitrate m\u00eb t\u00eb larta, CSR ndoqi nj\u00eb rrug\u00eb tjet\u00ebr \u2014 e p\u00ebrfshiu mb\u00ebshtetje p\u00ebr audio t\u00eb dyansh\u00ebm SBC n\u00eb standardin e transmetimit t\u00eb audios nj\u00ebansh\u00ebm A2DP, standardizoi profilin e kodimit dhe e quajti at\u00eb 'FastStream'.<\/p>\n<p>FastStream transmet n\u00eb dinamik\u00ebt z\u00eb stereo 44.1 ose 48 kHz me nj\u00eb bit rate prej 212 kbit\/s, nd\u00ebrsa p\u00ebr transmetimin e audios nga mikrofoni p\u00ebrdoret mono, 16 kHz, me nj\u00eb bit rate prej 72 kbit\/s (pak m\u00eb mir\u00eb se mSBC). K\u00ebto parametra jan\u00eb shum\u00eb m\u00eb t\u00eb p\u00ebrshtatsh\u00ebm p\u00ebr komunikimin n\u00eb loj\u00ebrat online \u2014 z\u00ebri i loj\u00ebs dhe i bashk\u00ebbiseduesve do t\u00eb jet\u00eb i kualitetit t\u00eb lart\u00eb.<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/files.catbox.moe\/4gazzt.flac\">Shembulli i regjistrimit n\u00eb k\u00ebt\u00eb kod<\/a><\/noindex> (+ <noindex><a rel=\"nofollow\" href=\"https:\/\/files.catbox.moe\/b09joy.flac\">z\u00ebri nga mikrofoni, si mSBC<\/a><\/noindex>).<\/p>\n<p>Kompania shpiku nj\u00eb gorill\u00eb interesante, por p\u00ebr shkak se ajo \u00ebsht\u00eb n\u00eb kund\u00ebrshtim me standardin A2DP, mb\u00ebshtetja e saj ka vet\u00ebm disa transmetues t\u00eb kompanis\u00eb (t\u00eb cil\u00ebt funksionojn\u00eb si nj\u00eb kart\u00eb audi t\u00eb USB-s\u00eb, jo si nj\u00eb pajisje Bluetooth), por nuk ka mb\u00ebshtetje n\u00eb stekat Bluetooth, megjithat\u00eb numri i kufjeve q\u00eb mb\u00ebshtesin FastStream nuk \u00ebsht\u00eb aq i vog\u00ebl.<\/p>\n<p>Aktualisht, mb\u00ebshtetja p\u00ebr FastStream n\u00eb sistemin operativ ekziston vet\u00ebm <noindex><a rel=\"nofollow\" href=\"https:\/\/lists.freedesktop.org\/archives\/pulseaudio-discuss\/2019-June\/031175.html\">si nj\u00eb patch p\u00ebr PulseAudio n\u00eb Linux<\/a><\/noindex> nga zhvilluesi Pali Roh\u00e1r, i cili nuk \u00ebsht\u00eb p\u00ebrfshir\u00eb n\u00eb deg\u00ebn kryesore t\u00eb programit.<\/p>\n<h5>aptX Low Latency<\/h5>\n<p>Me shum\u00eb habi, aptX Low Latency gjithashtu mb\u00ebshtet audion dyansh\u00ebm, duke zbatuar t\u00eb nj\u00ebjtin parim si FastStream.<br \/>\nNuk do t\u00eb mund ta p\u00ebrdorni k\u00ebt\u00eb ve\u00e7ori t\u00eb kodekut askund \u2014 mb\u00ebshtetje p\u00ebr dekodimin Low Latency nuk ka n\u00eb asnj\u00eb sistem operativ dhe as n\u00eb ndonj\u00eb stek Bluetooth q\u00eb njoh.<\/p>\n<p><\/p>\n<h1>Bluetooth 5, Classic dhe Low Energy<\/h1>\n<p>Kaoshu i specifikimeve dhe versioneve t\u00eb Bluetooth-it ka krijuar nj\u00eb ngat\u00ebrrim t\u00eb madh p\u00ebr shkak t\u00eb dy standardeve q\u00eb nuk jan\u00eb t\u00eb pajtueshme n\u00ebn nj\u00eb mark\u00eb, t\u00eb dyja nga t\u00eb cilat p\u00ebrdoren gjer\u00ebsisht p\u00ebr q\u00ebllime t\u00eb ndryshme.<\/p>\n<p>Ekzistojn\u00eb dy protokolle t\u00eb ndryshme dhe t\u00eb papajtueshme Bluetooth: Bluetooth Classic dhe Bluetooth Low Energy (LE, i njohur gjithashtu si Bluetooth Smart). Ka nj\u00eb protokoll t\u00eb tret\u00eb, Bluetooth High Speed, por ai nuk \u00ebsht\u00eb i zakonsh\u00ebm dhe nuk p\u00ebrdoret n\u00eb pajisjet p\u00ebr p\u00ebrdorim t\u00eb zakonsh\u00ebm.<\/p>\n<p>Q\u00eb nga Bluetooth 4.0, ndryshimet n\u00eb specifikim lidhen kryesisht me Bluetooth Low Energy, nd\u00ebrsa versione Classic ka marr\u00eb vet\u00ebm p\u00ebrmir\u00ebsime t\u00eb vogla.<\/p>\n<p>Lista e ndryshimeve midis Bluetooth 4.2 dhe Bluetooth 5:<\/p>\n<blockquote><p>9 NDYSHIME NGA v4.2 N\u00cb 5.0<\/p>\n<p>9.1 FUNKSIONET E REJA<\/p>\n<p>Disa ve\u00e7ori t\u00eb reja jan\u00eb prezantuar n\u00eb Rregulloren e Bluetooth Core Specification 5.0. Sferat kryesore t\u00eb p\u00ebrmir\u00ebsimeve jan\u00eb:<br \/>\n\u2022 Slot Availability Mask (SAM)<br \/>\n\u2022 2 Msym\/s PHY p\u00ebr LE<br \/>\n\u2022 LE Long Range<br \/>\n\u2022 Reklama me Cy\u00e7el t\u00eb Lart\u00eb pa Lidhu<br \/>\n\u2022 Zgjerimet e Reklam\u00ebs LE<br \/>\n\u2022 Algoritmi i Zgjedhjes s\u00eb Kanalit LE #2<br \/>\n9.1.1 Ve\u00e7orit\u00eb e Shtuar n\u00eb CSA5 \u2014 T\u00eb Integruara n\u00eb v5.0<br \/>\n\u2022 Fuqi m\u00eb e Lart\u00eb e Daljes<\/p><\/blockquote>\n<p><i>Burimi: <noindex><a rel=\"nofollow\" href=\"https:\/\/www.bluetooth.org\/docman\/handlers\/DownloadDoc.ashx?doc_id=421043\">www.bluetooth.org\/docman\/handlers\/DownloadDoc.ashx?doc_id=421043<\/a><\/noindex> (fq. 291)<\/i><\/p>\n<p>Vet\u00ebm nj\u00eb ndryshim ka ndodhur n\u00eb versionin Classic n\u00eb kuad\u00ebr t\u00eb specifikimit Bluetooth 5: \u00ebsht\u00eb shtuar mb\u00ebshtetje p\u00ebr teknologjin\u00eb Slot Availability Mask (SAM), e cila p\u00ebrmir\u00ebson ndarjen e radios. T\u00eb gjitha ndryshimet e tjera prekin vet\u00ebm Bluetooth LE (dhe Fuqin\u00eb m\u00eb t\u00eb Lart\u00eb t\u00eb Daljes gjithashtu).<\/p>\n<p><b>T\u00eb gjitha<\/b> Pajisjet audio p\u00ebrdorin vet\u00ebm Bluetooth Classic. Nuk \u00ebsht\u00eb e mundur t\u00eb lidhni kufjet dhe kolonat p\u00ebrmes Bluetooth Low Energy: nuk ekziston nj\u00eb standard p\u00ebr transmetimin e audios duke p\u00ebrdorur LE. Standardi A2DP, i p\u00ebrdorur p\u00ebr transmetimin e audios me cil\u00ebsi t\u00eb lart\u00eb, funksionon vet\u00ebm p\u00ebrmes Bluetooth Classic, dhe nuk ka nj\u00eb ekuivalent n\u00eb LE.<\/p>\n<p>P\u00ebrfundimi \u2014 blerja e pajisjeve audio me Bluetooth 5 vet\u00ebm p\u00ebr shkak t\u00eb versionit t\u00eb ri t\u00eb protokollit \u00ebsht\u00eb e paarsyeshme. Bluetooth 4.0\/4.1\/4.2 n\u00eb kontekstin e transmetimit t\u00eb audios do t\u00eb funksionoj\u00eb t\u00eb nj\u00ebjt\u00ebn gj\u00eb.<br \/>\nN\u00ebse njoftimi p\u00ebr kufjet e reja p\u00ebrmend dyfishimin e rrethit t\u00eb funksionimit dhe reduktimin e konsumit t\u00eb energjis\u00eb fal\u00eb Bluetooth 5, at\u00ebher\u00eb dijeni \u2014 ata ose nuk e kuptojn\u00eb vet\u00eb, ose po iu b\u00ebjn\u00eb mashtrim. Nuk \u00ebsht\u00eb e \u00e7uditshme, p\u00ebr shkak se madje edhe prodhuesit e \u00e7ipave Bluetooth ngat\u00ebrrohen n\u00eb njoftimet e ndryshimeve t\u00eb versionit t\u00eb ri t\u00eb standardit, dhe disa \u00e7ipa Bluetooth 5 mb\u00ebshtesin versionin e pest\u00eb vet\u00ebm p\u00ebr LE, nd\u00ebrsa p\u00ebr Classic p\u00ebrdorin 4.2.<\/p>\n<h1>Vonesa e transmetimit t\u00eb audios<\/h1>\n<p>Sasia e vones\u00ebs (t\u00eb ngadal\u00ebsimit) t\u00eb audios varet nga shum\u00eb faktor\u00eb: madh\u00ebsia e tamponit n\u00eb shtakun audio, n\u00eb shtakun Bluetooth dhe n\u00eb pajisjen wireless q\u00eb po luan, si dhe vonesat algoritmike t\u00eb kodek\u00ebve.<\/p>\n<p>Von nga kodet e thjesht\u00eb, si SBC, aptX dhe aptX HD, vonesa \u00ebsht\u00eb shum\u00eb e vog\u00ebl, rreth 3-6 ms, e cila mund t\u00eb injorohet, por kodet komplekse, si AAC dhe LDAC, mund t\u00eb \u00e7ojn\u00eb n\u00eb vonesa t\u00eb ndjeshme. Vonesa algoritmike e AAC p\u00ebr 44.1 kHz \u00ebsht\u00eb 60 ms. LDAC - rreth 30 ms (sip\u00ebrfaq\u00ebsisht nga nj\u00eb analiz\u00eb e kodit burimor. Mund t\u00eb gaboj, por jo shum\u00eb.)<\/p>\n<p>Vonesa p\u00ebrfundimtare varet shum\u00eb nga pajisja q\u00eb luan, \u00e7ipi i saj dhe buferi. Gjat\u00eb testimeve, kam marr\u00eb nj\u00eb gam\u00eb prej 150 deri n\u00eb 250 ms n\u00eb pajisje t\u00eb ndryshme (me kodin SBC). N\u00ebse supozojm\u00eb se pajisjet q\u00eb mb\u00ebshtesin kodek\u00ebt shtes\u00eb aptX, AAC dhe LDAC p\u00ebrdorin komponent\u00eb cil\u00ebsor\u00eb dhe nj\u00eb bufer t\u00eb vog\u00ebl, at\u00ebher\u00eb do t\u00eb kemi vonesa tipike si m\u00eb posht\u00eb:<\/p>\n<p>SBC: 150-250 ms<br \/>\naptX: 130-180 ms<br \/>\nAAC: 190-240 ms<br \/>\nLDAC: 160-210 ms<\/p>\n<p>Kujdes: aptX Low Latency nuk mb\u00ebshtetet n\u00eb sistemet operative, prandaj nj\u00eb vones\u00eb m\u00eb e vog\u00ebl mund t\u00eb arrihet vet\u00ebm me lidhjen transmitues + rresivues ose transmitues + kufje\/kolon\u00eb, dhe t\u00eb gjith\u00eb pajisjet duhet t\u00eb mb\u00ebshtesin k\u00ebt\u00eb kodek.<\/p>\n<p><\/p>\n<h1>Problemet e pajisjeve, certifikimit dhe logove Bluetooth<\/h1>\n<p>Si t\u00eb dallosh nj\u00eb pajisje audio cil\u00ebsore nga nj\u00eb produkt i lir\u00eb? S\u00eb pari, nga pamja e jashtme!<\/p>\n<p>P\u00ebr kufjet, kolonat dhe receptor\u00ebt e lir\u00eb nga Kina:<\/p>\n<ol>\n<li>Mungon fjala \u00abBluetooth\u00bb n\u00eb ambalazh dhe n\u00eb pajisje, shpesh p\u00ebrdoret \u00abWireless\u00bb dhe \u00abBT\u00bb<\/li>\n<li>Mungon logoja Bluetooth <img decoding=\"async\" alt=\"Audio p\u00ebrmes Bluetooth: sa m\u00eb shum\u00eb informacione mbi profilet, kodek\u00ebt dhe pajisjet.\" src=\"\/wp-content\/uploads\/bde65e4674a5d573c0482e64ea6ff2d3.png\" style=\"display:block;margin: 0 auto;\" \/> n\u00eb ambalazh ose n\u00eb pajisje<\/li>\n<li>Nuk ka drit\u00eb LED blu q\u00eb ndri\u00e7on<\/li>\n<\/ol>\n<p>\nMungesa e k\u00ebtyre elementeve tregon se pajisja nuk ka kaluar certifikimin, prandaj \u00ebsht\u00eb potencialisht me cil\u00ebsi t\u00eb ul\u00ebt dhe problematike. P\u00ebr shembull, kufjet e mark\u00ebs Bluedio nuk jan\u00eb certifikuar p\u00ebr Bluetooth dhe nuk p\u00ebrputhen plot\u00ebsisht me specifikimin A2DP. Ato do t\u00eb d\u00ebshtonin n\u00eb certifikim.<\/p>\n<p>Le t\u00eb shqyrtojm\u00eb disa pajisje dhe ambalazhe t\u00eb tyre:<br \/>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/habrastorage.org\/webt\/e4\/qa\/rr\/e4qarrce8fcjv8wwu46aiyib3oa.jpeg\"><img decoding=\"async\" alt=\"Audio p\u00ebrmes Bluetooth: sa m\u00eb shum\u00eb informacione mbi profilet, kodek\u00ebt dhe pajisjet.\" src=\"\/wp-content\/uploads\/12b3b234a522eaef783b480e8f003ffc.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habrastorage.org\/webt\/ba\/06\/vb\/ba06vbcolhpvuie2xlbgnvsycd0.jpeg\"><img decoding=\"async\" alt=\"Audio p\u00ebrmes Bluetooth: sa m\u00eb shum\u00eb informacione mbi profilet, kodek\u00ebt dhe pajisjet.\" src=\"\/wp-content\/uploads\/da56314dd65a1000cd3b545d9925d08b.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habrastorage.org\/webt\/mw\/1b\/t1\/mw1bt1hp0cz11xuilzyz0a70dca.jpeg\"><img decoding=\"async\" alt=\"Audio p\u00ebrmes Bluetooth: sa m\u00eb shum\u00eb informacione mbi profilet, kodek\u00ebt dhe pajisjet.\" src=\"\/wp-content\/uploads\/2bb0356a92d8aee2a84c3123aa8d7e09.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/p>\n<p>K\u00ebto t\u00eb gjitha jan\u00eb pajisje t\u00eb pa-certifikuara. N\u00eb manual mund t\u00eb ket\u00eb logo dhe emrin e teknologjis\u00eb Bluetooth, por m\u00eb e r\u00ebnd\u00ebsishmja \u00ebsht\u00eb q\u00eb ato t\u00eb jen\u00eb n\u00eb ambalazh dhe\/ose n\u00eb vet\u00eb pajisjen.<\/p>\n<p>N\u00ebse kufjet apo kolonat tuaja thon\u00eb \u00abZe bluetooth dewise is connecteda successfulle\u00bb, kjo gjithashtu nuk tregon p\u00ebr cil\u00ebsin\u00eb e tyre:<br \/>\n<center><div class=\"youtube-placeholder\" data-id=\"TOFbsbGpIWk\" onclick=\"loadVideo(this)\">\r\n        <img decoding=\"async\" src=\"https:\/\/img.youtube.com\/vi\/TOFbsbGpIWk\/hqdefault.jpg\" alt=\"Luaj videon\" loading=\"lazy\" width=\"480\" height=\"360\" style=\"width:100%;height:auto;\">\r\n        <div class=\"play-button\"><\/div>\r\n    <\/div><\/center><\/p>\n<p><\/p>\n<h1>P\u00ebrfundimi<\/h1>\n<p>A mund t\u00eb z\u00ebvend\u00ebsoj\u00eb Bluetooth-i plot\u00ebsisht kufjet dhe headset-at me litar? Po, por me koston e cil\u00ebsis\u00eb s\u00eb dob\u00ebt gjat\u00eb bisedave, vones\u00ebs s\u00eb rritura n\u00eb transmetimin e z\u00ebrit, e cila mund t\u00eb jet\u00eb irrituese n\u00eb loj\u00ebra, dhe shum\u00eb kodek\u00ebsh pronar\u00eb q\u00eb k\u00ebrkojn\u00eb licenca dhe rrisin koston p\u00ebrfundimtare t\u00eb smartphone-ve dhe kufjeve.<\/p>\n<p>Marketingu i kodek\u00ebve alternativ\u00eb \u00ebsht\u00eb shum\u00eb i fort\u00eb: aptX dhe LDAC paraqiten si nj\u00eb z\u00ebvend\u00ebsim i shum\u00ebpritur p\u00ebr SBC-t\u00eb \"t\u00eb vjetra dhe t\u00eb k\u00ebqija\", q\u00eb nuk \u00ebsht\u00eb aq i keq sa mendohet.<\/p>\n<p>Si\u00e7 doli, kufizimet artificiale t\u00eb stack-\u00ebve Bluetooth p\u00ebr bitrate-n SBC mund t\u00eb kalohen, k\u00ebshtu q\u00eb SBC nuk do t\u2019i n\u00ebnshtrohet aptX HD. E mora iniciativ\u00ebn n\u00eb duar dhe b\u00ebra nj\u00eb patch p\u00ebr firmware-n e LineageOS: <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/455316\/\">Modifikojm\u00eb stack-un Bluetooth p\u00ebr t\u00eb p\u00ebrmir\u00ebsuar z\u00ebrin n\u00eb kufjet pa kodek\u00ebt AAC, aptX dhe LDAC<\/a><\/noindex><\/p>\n<p>M\u00eb shum\u00eb informacion mund t\u00eb gjendet n\u00eb faqet <noindex><a rel=\"nofollow\" href=\"https:\/\/www.soundguys.com\/\">SoundGuys<\/a><\/noindex> dhe <noindex><a rel=\"nofollow\" href=\"http:\/\/soundexpert.org\/\">SoundExpert<\/a><\/noindex>.<\/p>\n<p><b>Bonus:<\/b> <noindex><a rel=\"nofollow\" href=\"https:\/\/files.catbox.moe\/29l4kd.zip\">kodekeri referues SBC, informacion mbi bitrate-n A2DP dhe skedar\u00eb teste<\/a><\/noindex>. Ky skedar ka qen\u00eb m\u00eb par\u00eb n\u00eb dispozicion publik n\u00eb faqen e Bluetooth, por tani \u00ebsht\u00eb n\u00eb dispozicion vet\u00ebm p\u00ebr ata q\u00eb jan\u00eb an\u00ebtar\u00eb t\u00eb Bluetooth SIG.<\/p>\n<p>Burimi: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/427997\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0418\u0437-\u0437\u0430 \u043c\u0430\u0441\u0441\u043e\u0432\u043e\u0433\u043e \u0432\u044b\u043f\u0443\u0441\u043a\u0430 \u0441\u043c\u0430\u0440\u0442\u0444\u043e\u043d\u043e\u0432 \u0431\u0435\u0437 \u0430\u0443\u0434\u0438\u043e\u0440\u0430\u0437\u044a\u0435\u043c\u0430 3.5 \u043c\u043c \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u044b\u0435 Bluetooth-\u043d\u0430\u0443\u0448\u043d\u0438\u043a\u0438 \u0434\u043b\u044f \u043c\u043d\u043e\u0433\u0438\u0445 \u0441\u0442\u0430\u043b\u0438 \u043e\u0441\u043d\u043e\u0432\u043d\u044b\u043c \u0441\u043f\u043e\u0441\u043e\u0431\u043e\u043c \u043f\u0440\u043e\u0441\u043b\u0443\u0448\u0438\u0432\u0430\u043d\u0438\u044f \u043c\u0443\u0437\u044b\u043a\u0438 \u0438 \u043e\u0431\u0449\u0435\u043d\u0438\u044f \u0432 \u0440\u0435\u0436\u0438\u043c\u0435 \u0433\u0430\u0440\u043d\u0438\u0442\u0443\u0440\u044b. \u041f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0438 \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u044b\u0445 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 \u043d\u0435 \u0432\u0441\u0435\u0433\u0434\u0430 \u043f\u0438\u0448\u0443\u0442 \u043f\u043e\u0434\u0440\u043e\u0431\u043d\u044b\u0435 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0438 \u0442\u043e\u0432\u0430\u0440\u0430, \u0430 \u0441\u0442\u0430\u0442\u044c\u0438 \u043e Bluetooth-\u0430\u0443\u0434\u0438\u043e \u0432 \u0438\u043d\u0442\u0435\u0440\u043d\u0435\u0442\u0435 \u043f\u0440\u043e\u0442\u0438\u0432\u043e\u0440\u0435\u0447\u0438\u0432\u044b, \u043c\u0435\u0441\u0442\u0430\u043c\u0438 \u043d\u0435\u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u044b, \u043d\u0435 \u0440\u0430\u0441\u0441\u043a\u0430\u0437\u044b\u0432\u0430\u044e\u0442 \u043e \u0432\u0441\u0435\u0445 \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u044f\u0445, \u0438 \u0447\u0430\u0441\u0442\u043e \u043a\u043e\u043f\u0438\u0440\u0443\u044e\u0442 \u043e\u0434\u043d\u0443 \u0438 \u0442\u0443 \u0436\u0435 \u043d\u0435 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0443\u044e \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-35145","post","type-post","status-publish","format-standard","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0418\u0437-\u0437\u0430 \u043c\u0430\u0441\u0441\u043e\u0432\u043e\u0433\u043e \u0432\u044b\u043f\u0443\u0441\u043a\u0430 \u0441\u043c\u0430\u0440\u0442\u0444\u043e\u043d\u043e\u0432 \u0431\u0435\u0437 \u0430\u0443\u0434\u0438\u043e\u0440\u0430\u0437\u044a\u0435\u043c\u0430 3.5 \u043c\u043c \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u044b\u0435 Bluetooth-\u043d\u0430\u0443\u0448\u043d\u0438\u043a\u0438 \u0434\u043b\u044f \u043c\u043d\u043e\u0433\u0438\u0445 \u0441\u0442\u0430\u043b\u0438 \u043e\u0441\u043d\u043e\u0432\u043d\u044b\u043c \u0441\u043f\u043e\u0441\u043e\u0431\u043e\u043c \u043f\u0440\u043e\u0441\u043b\u0443\u0448\u0438\u0432\u0430\u043d\u0438\u044f \u043c\u0443\u0437\u044b\u043a\u0438 \u0438 \u043e\u0431\u0449\u0435\u043d\u0438\u044f \u0432 \u0440\u0435\u0436\u0438\u043c\u0435 \u0433\u0430\u0440\u043d\u0438\u0442\u0443\u0440\u044b. \u041f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0438 \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u044b\u0445 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 \u043d\u0435 \u0432\u0441\u0435\u0433\u0434\u0430 \u043f\u0438\u0448\u0443\u0442 \u043f\u043e\u0434\u0440\u043e\u0431\u043d\u044b\u0435 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0438 \u0442\u043e\u0432\u0430\u0440\u0430, \u0430 \u0441\u0442\u0430\u0442\u044c\u0438 \u043e Bluetooth-\u0430\u0443\u0434\u0438\u043e \u0432 \u0438\u043d\u0442\u0435\u0440\u043d\u0435\u0442\u0435 \u043f\u0440\u043e\u0442\u0438\u0432\u043e\u0440\u0435\u0447\u0438\u0432\u044b, \u043c\u0435\u0441\u0442\u0430\u043c\u0438 \u043d\u0435\u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u044b, \u043d\u0435 \u0440\u0430\u0441\u0441\u043a\u0430\u0437\u044b\u0432\u0430\u044e\u0442 \u043e \u0432\u0441\u0435\u0445 \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u044f\u0445, \u0438 \u0447\u0430\u0441\u0442\u043e \u043a\u043e\u043f\u0438\u0440\u0443\u044e\u0442 \u043e\u0434\u043d\u0443 \u0438 \u0442\u0443 \u0436\u0435 \u043d\u0435 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0443\u044e \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/sq\/blog\/administrirovanie\/audio-cherez-bluetooth-maksimalno-podrobno-o-profilyah-kodekah-i-ustrojstvah\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.0.1\" \/>\n\t\t<meta property=\"og:locale\" content=\"sq_AL\" \/>\n\t\t<meta property=\"og:site_name\" content=\"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\ud83e\udd47\u0410\u0443\u0434\u0438\u043e \u0447\u0435\u0440\u0435\u0437 Bluetooth: \u043c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u043e \u043f\u043e\u0434\u0440\u043e\u0431\u043d\u043e \u043e \u043f\u0440\u043e\u0444\u0438\u043b\u044f\u0445, \u043a\u043e\u0434\u0435\u043a\u0430\u0445 \u0438 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430\u0445 | ProHoster\" \/>\n\t\t<meta property=\"og:description\" content=\"\u0418\u0437-\u0437\u0430 \u043c\u0430\u0441\u0441\u043e\u0432\u043e\u0433\u043e \u0432\u044b\u043f\u0443\u0441\u043a\u0430 \u0441\u043c\u0430\u0440\u0442\u0444\u043e\u043d\u043e\u0432 \u0431\u0435\u0437 \u0430\u0443\u0434\u0438\u043e\u0440\u0430\u0437\u044a\u0435\u043c\u0430 3.5 \u043c\u043c \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u044b\u0435 Bluetooth-\u043d\u0430\u0443\u0448\u043d\u0438\u043a\u0438 \u0434\u043b\u044f \u043c\u043d\u043e\u0433\u0438\u0445 \u0441\u0442\u0430\u043b\u0438 \u043e\u0441\u043d\u043e\u0432\u043d\u044b\u043c \u0441\u043f\u043e\u0441\u043e\u0431\u043e\u043c \u043f\u0440\u043e\u0441\u043b\u0443\u0448\u0438\u0432\u0430\u043d\u0438\u044f \u043c\u0443\u0437\u044b\u043a\u0438 \u0438 \u043e\u0431\u0449\u0435\u043d\u0438\u044f \u0432 \u0440\u0435\u0436\u0438\u043c\u0435 \u0433\u0430\u0440\u043d\u0438\u0442\u0443\u0440\u044b. \u041f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0438 \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u044b\u0445 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 \u043d\u0435 \u0432\u0441\u0435\u0433\u0434\u0430 \u043f\u0438\u0448\u0443\u0442 \u043f\u043e\u0434\u0440\u043e\u0431\u043d\u044b\u0435 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0438 \u0442\u043e\u0432\u0430\u0440\u0430, \u0430 \u0441\u0442\u0430\u0442\u044c\u0438 \u043e Bluetooth-\u0430\u0443\u0434\u0438\u043e \u0432 \u0438\u043d\u0442\u0435\u0440\u043d\u0435\u0442\u0435 \u043f\u0440\u043e\u0442\u0438\u0432\u043e\u0440\u0435\u0447\u0438\u0432\u044b, \u043c\u0435\u0441\u0442\u0430\u043c\u0438 \u043d\u0435\u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u044b, \u043d\u0435 \u0440\u0430\u0441\u0441\u043a\u0430\u0437\u044b\u0432\u0430\u044e\u0442 \u043e \u0432\u0441\u0435\u0445 \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u044f\u0445, \u0438 \u0447\u0430\u0441\u0442\u043e \u043a\u043e\u043f\u0438\u0440\u0443\u044e\u0442 \u043e\u0434\u043d\u0443 \u0438 \u0442\u0443 \u0436\u0435 \u043d\u0435 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0443\u044e \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/prohoster.info\/sq\/blog\/administrirovanie\/audio-cherez-bluetooth-maksimalno-podrobno-o-profilyah-kodekah-i-ustrojstvah\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:width\" content=\"350\" \/>\n\t\t<meta property=\"og:image:height\" content=\"350\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2019-10-31T19:02:32+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2019-10-31T19:02:32+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"\ud83e\udd47Audio p\u00ebrmes Bluetooth: \u00e7do informacion i detajuar mbi profillet, kodek\u00ebt dhe pajisjet | ProHoster","description":"P\u00ebr shkak t\u00eb daljes masive t\u00eb smartphone-ve pa portin audio 3.5 mm, kufjet wireless Bluetooth jan\u00eb b\u00ebr\u00eb m\u00ebnyra kryesore p\u00ebr shum\u00eb njer\u00ebz p\u00ebr t\u00eb d\u00ebgjuar muzik\u00eb dhe p\u00ebr t\u00eb komunikuar si nj\u00eb headset. Prodhuesit e pajisjeve wireless nuk shkruajn\u00eb gjithmon\u00eb karakteristikat e detajuara t\u00eb produktit, dhe artikujt mbi audion Bluetooth n\u00eb internet jan\u00eb shpesh kontradiktor\u00eb, disa her\u00eb t\u00eb pasakt\u00eb, dhe nuk shpjegojn\u00eb t\u00eb gjitha ve\u00e7orit\u00eb, duke kopjuar shpesh t\u00eb nj\u00ebjt\u00ebn informacion t\u00eb pav\u00ebrtet\u00eb.","canonical_url":"https:\/\/prohoster.info\/sq\/blog\/administrirovanie\/audio-cherez-bluetooth-maksimalno-podrobno-o-profilyah-kodekah-i-ustrojstvah","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"sq_AL","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0410\u0443\u0434\u0438\u043e \u0447\u0435\u0440\u0435\u0437 Bluetooth: \u043c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u043e \u043f\u043e\u0434\u0440\u043e\u0431\u043d\u043e \u043e \u043f\u0440\u043e\u0444\u0438\u043b\u044f\u0445, \u043a\u043e\u0434\u0435\u043a\u0430\u0445 \u0438 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430\u0445 | ProHoster","og:description":"\u0418\u0437-\u0437\u0430 \u043c\u0430\u0441\u0441\u043e\u0432\u043e\u0433\u043e \u0432\u044b\u043f\u0443\u0441\u043a\u0430 \u0441\u043c\u0430\u0440\u0442\u0444\u043e\u043d\u043e\u0432 \u0431\u0435\u0437 \u0430\u0443\u0434\u0438\u043e\u0440\u0430\u0437\u044a\u0435\u043c\u0430 3.5 \u043c\u043c \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u044b\u0435 Bluetooth-\u043d\u0430\u0443\u0448\u043d\u0438\u043a\u0438 \u0434\u043b\u044f \u043c\u043d\u043e\u0433\u0438\u0445 \u0441\u0442\u0430\u043b\u0438 \u043e\u0441\u043d\u043e\u0432\u043d\u044b\u043c \u0441\u043f\u043e\u0441\u043e\u0431\u043e\u043c \u043f\u0440\u043e\u0441\u043b\u0443\u0448\u0438\u0432\u0430\u043d\u0438\u044f \u043c\u0443\u0437\u044b\u043a\u0438 \u0438 \u043e\u0431\u0449\u0435\u043d\u0438\u044f \u0432 \u0440\u0435\u0436\u0438\u043c\u0435 \u0433\u0430\u0440\u043d\u0438\u0442\u0443\u0440\u044b. \u041f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0438 \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u044b\u0445 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 \u043d\u0435 \u0432\u0441\u0435\u0433\u0434\u0430 \u043f\u0438\u0448\u0443\u0442 \u043f\u043e\u0434\u0440\u043e\u0431\u043d\u044b\u0435 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0438 \u0442\u043e\u0432\u0430\u0440\u0430, \u0430 \u0441\u0442\u0430\u0442\u044c\u0438 \u043e Bluetooth-\u0430\u0443\u0434\u0438\u043e \u0432 \u0438\u043d\u0442\u0435\u0440\u043d\u0435\u0442\u0435 \u043f\u0440\u043e\u0442\u0438\u0432\u043e\u0440\u0435\u0447\u0438\u0432\u044b, \u043c\u0435\u0441\u0442\u0430\u043c\u0438 \u043d\u0435\u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u044b, \u043d\u0435 \u0440\u0430\u0441\u0441\u043a\u0430\u0437\u044b\u0432\u0430\u044e\u0442 \u043e \u0432\u0441\u0435\u0445 \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u044f\u0445, \u0438 \u0447\u0430\u0441\u0442\u043e \u043a\u043e\u043f\u0438\u0440\u0443\u044e\u0442 \u043e\u0434\u043d\u0443 \u0438 \u0442\u0443 \u0436\u0435 \u043d\u0435 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0443\u044e \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438","og:url":"https:\/\/prohoster.info\/sq\/blog\/administrirovanie\/audio-cherez-bluetooth-maksimalno-podrobno-o-profilyah-kodekah-i-ustrojstvah","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2019-10-31T19:02:32+00:00","article:modified_time":"2019-10-31T19:02:32+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"35145","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":null,"schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":"2026-01-21 22:04:30","breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2021-03-01 02:09:54","updated":"2026-01-21 22:04:30","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/sq\/wp-json\/wp\/v2\/posts\/35145","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/sq\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/sq\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sq\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sq\/wp-json\/wp\/v2\/comments?post=35145"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/sq\/wp-json\/wp\/v2\/posts\/35145\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/sq\/wp-json\/wp\/v2\/media?parent=35145"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/sq\/wp-json\/wp\/v2\/categories?post=35145"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/sq\/wp-json\/wp\/v2\/tags?post=35145"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}