{"id":105529,"date":"2022-11-12T21:36:39","date_gmt":"2022-11-12T19:36:39","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-otkrytogo-audiokodeka-lyra-1-3"},"modified":"2022-11-12T21:36:39","modified_gmt":"2022-11-12T19:36:39","slug":"obnovlenie-otkrytogo-audiokodeka-lyra-1-3","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/obnovlenie-otkrytogo-audiokodeka-lyra-1-3","title":{"rendered":"Actualizare a codec-ului audio deschis Lyra 1.3","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Compania Google a lansat versiunea 1.3 a codec-ului audio Lyra, destinat ob\u021binerii unei calit\u0103\u021bi superioare a transmiterii vocii \u00een condi\u021bii de l\u0103\u021bime de band\u0103 limitat\u0103. Calitatea vocii la ratele de bi\u021bi de 3.2 kbps, 6 kbps \u0219i 9.2 kbps folosind codec-ul Lyra corespunde aproximativ ratelor de bi\u021bi de 10 kbps, 13 kbps \u0219i 14 kbps utiliz\u00e2nd codec-ul Opus. Pentru a rezolva aceast\u0103 problem\u0103, pe l\u00e2ng\u0103 metodele obi\u0219nuite de compresie a sunetului \u0219i de transformare a semnalelor, Lyra folose\u0219te un model de vorbire bazat pe un sistem de \u00eenv\u0103\u021bare automat\u0103 care permite recrearea informa\u021biilor lips\u0103 pe baza caracteristicilor tipice ale vocii. Implementarea de referin\u021b\u0103 a codului este scris\u0103 \u00een C++ \u0219i este distribuit\u0103 sub licen\u021ba Apache 2.0. <\/p>\n

Spre deosebire de versiunea radical revizuit\u0103 Lyra 1.2 lansat\u0103 \u00een octombrie, care a fost transferat\u0103 pe o nou\u0103 arhitectur\u0103 de re\u021bea neuronal\u0103, versiunea 1.3 a optimizat modelul de \u00eenv\u0103\u021bare automat\u0103 f\u0103r\u0103 modific\u0103ri arhitecturale. \u00cen noua versiune, pentru stocarea greut\u0103\u021bilor \u0219i efectuarea opera\u021biunilor aritmetice, au fost folosite numere \u00eentregi pe 8 bi\u021bi \u00een loc de numere \u00een virgul\u0103 mobil\u0103 pe 32 de bi\u021bi, ceea ce a redus dimensiunea modelului cu 43% \u0219i a accelerat performan\u021ba modelului cu 20% \u00een timpul test\u0103rii pe smartphone-ul Pixel 6 Pro. Calitatea vocii a fost men\u021binut\u0103 la acela\u0219i nivel, dar formatul datelor transmise s-a schimbat \u0219i nu este compatibil cu versiunile anterioare.
\n
Sursa: opennet.ro<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Google \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u0432\u044b\u043f\u0443\u0441\u043a \u0430\u0443\u0434\u0438\u043e\u043a\u043e\u0434\u0435\u043a\u0430 Lyra 1.3, \u043d\u0430\u0446\u0435\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0434\u043e\u0441\u0442\u0438\u0436\u0435\u043d\u0438\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0433\u043e \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0430 \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0438 \u0433\u043e\u043b\u043e\u0441\u0430 \u0432 \u0443\u0441\u043b\u043e\u0432\u0438\u044f\u0445 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u043d\u043e\u0433\u043e \u043e\u0431\u044a\u0451\u043c\u0430 \u043f\u0435\u0440\u0435\u0434\u0430\u0432\u0430\u0435\u043c\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438. \u041a\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 \u043f\u0440\u0438\u043c\u0435\u0440\u043d\u043e \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. \u0414\u043b\u044f \u0440\u0435\u0448\u0435\u043d\u0438\u044f \u043f\u043e\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u043d\u043e\u0439 \u0437\u0430\u0434\u0430\u0447\u0438 \u043f\u043e\u043c\u0438\u043c\u043e \u043e\u0431\u044b\u0447\u043d\u044b\u0445 \u043c\u0435\u0442\u043e\u0434\u043e\u0432 […]<\/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":[702],"tags":[],"class_list":["post-105529","post","type-post","status-publish","format-standard","hentry","category-news"],"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\udd47Actualizarea codec-ului audio deschis Lyra 1.3 | ProHoster","description":"Compania Google a lansat versiunea 1.3 a codec-ului audio Lyra, destinat ob\u021binerii unei calit\u0103\u021bi superioare a transmiterii vocii \u00een condi\u021bii de l\u0103\u021bime de band\u0103 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