{"id":105223,"date":"2022-10-01T09:36:41","date_gmt":"2022-10-01T07:36:42","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/google-opublikoval-otkrytyj-audiokodek-lyra-v2"},"modified":"2022-10-01T09:36:41","modified_gmt":"2022-10-01T07:36:42","slug":"google-opublikoval-otkrytyj-audiokodek-lyra-v2","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/google-opublikoval-otkrytyj-audiokodek-lyra-v2","title":{"rendered":"Google avaldas avatud audio koodeki Lyra V2","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Google esitles audio koodekit Lyra V2, mis kasutab masin\u00f5ppe meetodeid, et saavutada k\u00f5rgeim k\u00f5ne edastamise kvaliteet v\u00e4ga aeglaste sidekanalite puhul. Uus versioon toob endaga kaasa \u00fclemineku uuele n\u00e4rviv\u00f5rgu arhitektuurile, toetades t\u00e4iendavaid platvorme, laiemat bitikiiruset\u00f6\u00f6tluse funktsionaalsust, suurenenud j\u00f5udlust ja k\u00f5rgemat helikvaliteeti. Standardne kooditeostus on kirjutatud C++ keeles ja levitatakse Apache 2.0 litsentsi alusel. <\/p>\n

Edastatavate h\u00e4\u00e4ldata andmete kvaliteedis madalatel kiirusel \u00fcletab Lyra oluliselt traditsioonilisi koodekeid, mis kasutavad digitaalsete signaalide t\u00f6\u00f6tlemise meetodeid. K\u00f5rge h\u00e4\u00e4le edastamise kvaliteedi saavutamiseks piiratud edastatava teabe mahus rakendab Lyra, lisaks tavap\u00e4rastele helikoonduse ja signaalimuutuse meetoditele, masin\u00f5ppele tuginevat k\u00f5nemudelit, mis v\u00f5imaldab taastada puuduva teabe t\u00fc\u00fcpiliste k\u00f5neomaduste p\u00f5hjal. <\/p>\n

Kodek sisaldab kodeerijat ja dekodeerijat. Kodeerija t\u00f6\u00f6 algoritm seisneb igal 20 millisekundil helid\u01ebhenduse parameetrite v\u00e4ljav\u00f5tmises, nende kokkusurves ja edastamises vastuv\u00f5tjale v\u00f5rgu kaudu, bitikiirusena 3,2kbps kuni 9,2kbps. Vastuv\u00f5tja poolel kasutab dekodeerija genereerivat mudelit, et taastada algne k\u00f5nesignaal edastatud heliparametrite p\u00f5hjal, mis h\u00f5lmavad logaritmilisi mel-spektrogramme, mis arvestavad k\u00f5ne energiat erinevates sagedusvahemikes ja on koostatud inimkuulmise mudelit arvesse v\u00f5ttes. <\/p>\n

Lyra V2-s on kasutatud uut generatiivset mudelit, mis p\u00f5hineb konvolutsioonilisel n\u00e4rviv\u00f5rgul SoundStream, millel on madalad n\u00f5udmised arvutusressursside osas, v\u00f5imaldades dekodeerimist reaalajas isegi madala j\u00f5udlusega s\u00fcsteemides. Heligeneratsiooni mudel on koolitatud mitme tuhande tunni jooksul salvestustega \u00fcle 90 keele. Mudeli k\u00e4itamiseks kasutatakse TensorFlow Lite'i. Pakutud rakenduse suutlikkus on piisav k\u00f5ne kodeerimiseks ja dekodeerimiseks madala hinnaklassi nutitelefonides. <\/p>\n

Uue versiooni oluline omadus on samal ajal erineva generatiivse mudeli kasutamine ja arhitektuuri lisamine RVQ (Residual Vector Quantizer) kvantiseerijatega, mis teostatakse saatja poolel enne andmete edastamist ning vastuv\u00f5tja poolel p\u00e4rast andmete vastuv\u00f5tmist. Kvantiseerija muudab koodeki v\u00e4ljundparameetrid pakettide kogumiteks, kodeerides teavet valitud bitim\u00e4\u00e4ra alusel. Erineva kvaliteeditaseme tagamiseks on ette n\u00e4htud kvantiseerijad kolmele bitim\u00e4\u00e4rale (3.2 kps, 6 kbps ja 9.2 kbps): mida k\u00f5rgem on bitim\u00e4\u00e4r, seda parem on kvaliteet, kuid k\u00f5rgemad n\u00f5uded ribalaiusele.

\"Google<\/center> <\/p>\n

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\u041a\u0440\u043e\u043c\u0435 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u0443\u0434\u0430\u043b\u043e\u0441\u044c \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u0438 \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u0438\u0435 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0430 \u0432\u043e\u0441\u0441\u0442\u0430\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0437\u0432\u0443\u043a\u0430 — \u043f\u043e \u0448\u043a\u0430\u043b\u0435 MUSHRA \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u043e \u0440\u0435\u0447\u0438 \u043d\u0430 \u0431\u0438\u0442\u0440\u0435\u0439\u0442\u0430\u0445 3.2 kbps, 6 kbps \u0438 9.2 kbps \u043f\u0440\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0438 \u043a\u043e\u0434\u0435\u043a\u0430 Lyra V2 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u0435\u0442 \u0431\u0438\u0442\u0440\u0435\u0439\u0442\u0430\u043c 10 kbps, 13 kbps \u0438 14 kbps \u043f\u0440\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0438 \u043a\u043e\u0434\u0435\u043a\u0430 Opus.
\n
Allikas: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Google \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b\u0430 \u0430\u0443\u0434\u0438\u043e\u043a\u043e\u0434\u0435\u043a Lyra V2, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0449\u0438\u0439 \u043c\u0435\u0442\u043e\u0434\u044b \u043c\u0430\u0448\u0438\u043d\u043d\u043e\u0433\u043e \u043e\u0431\u0443\u0447\u0435\u043d\u0438\u044f \u0434\u043b\u044f \u0434\u043e\u0441\u0442\u0438\u0436\u0435\u043d\u0438\u044f \u043c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0430 \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0438 \u0440\u0435\u0447\u0438 \u043f\u0440\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0438 \u043e\u0447\u0435\u043d\u044c \u043c\u0435\u0434\u043b\u0435\u043d\u043d\u044b\u0445 \u043a\u0430\u043d\u0430\u043b\u043e\u0432 \u0441\u0432\u044f\u0437\u0438. \u041d\u043e\u0432\u0430\u044f \u0432\u0435\u0440\u0441\u0438\u044f \u043e\u0442\u043b\u0438\u0447\u0430\u0435\u0442\u0441\u044f \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u043e\u043c \u043d\u0430 \u043d\u043e\u0432\u0443\u044e \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u0443 \u043d\u0435\u0439\u0440\u043e\u043d\u043d\u043e\u0439 \u0441\u0435\u0442\u0438, \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u043e\u0439 \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0445 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c, \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u043d\u044b\u043c\u0438 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044f\u043c\u0438 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0431\u0438\u0442\u0440\u0435\u0439\u0442\u043e\u043c, \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u0438\u0435\u043c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u0438 \u0434\u043e\u0441\u0442\u0438\u0436\u0435\u043d\u0438\u0435\u043c \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0433\u043e \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0430 \u0437\u0432\u0443\u043a\u0430. \u042d\u0442\u0430\u043b\u043e\u043d\u043d\u0430\u044f \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f \u043a\u043e\u0434\u0430 \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u0430 \u043d\u0430 C++ \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":105224,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-105223","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Google avalikustab avatud helikodeki Lyra V2 | ProHoster","description":"Google esitles uut Lyra V2 helikodekit, mis kasutab masin\u00f5ppe meetodeid, et saavutada maksimaalne k\u00f5needastuse kvaliteet v\u00e4ga madalate andmesidekanalite korral. Uus versioon erineb eelmisest uusima n\u00e4rviv\u00f5rgu arhitektuuri kaudu, toetab t\u00e4iendavaid platvorme, pakub laiemat andmeedastuskiirusete haldamise v\u00f5imalusi, suurendab j\u00f5udlust ja saavutab parema helikvaliteedi. Standardkood on kirjutatud C++-s ja levitatakse","canonical_url":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/google-opublikoval-otkrytyj-audiokodek-lyra-v2","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"et_EE","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\udd47Google \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b \u043e\u0442\u043a\u0440\u044b\u0442\u044b\u0439 \u0430\u0443\u0434\u0438\u043e\u043a\u043e\u0434\u0435\u043a Lyra V2 | ProHoster","og:description":"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Google 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