{"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\/cs\/blog\/news\/obnovlenie-otkrytogo-audiokodeka-lyra-1-3","title":{"rendered":"Aktualizace otev\u0159en\u00e9ho audio kodeku Lyra 1.3","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Spole\u010dnost Google zve\u0159ejnila verzi audio kodeku Lyra 1.3, zam\u011b\u0159enou na dosa\u017een\u00ed vysok\u00e9 kvality p\u0159enosu hlasu v podm\u00ednk\u00e1ch omezen\u00e9ho objemu p\u0159en\u00e1\u0161en\u00fdch informac\u00ed. Kvalita \u0159e\u010di p\u0159i bitratech 3.2 kbps, 6 kbps a 9.2 kbps p\u0159i pou\u017eit\u00ed kodeku Lyra p\u0159ibli\u017en\u011b odpov\u00edd\u00e1 bitrate\u016fm 10 kbps, 13 kbps a 14 kbps p\u0159i pou\u017eit\u00ed kodeku Opus. K dosa\u017een\u00ed tohoto c\u00edle se krom\u011b b\u011b\u017en\u00fdch metod komprese zvuku a zpracov\u00e1n\u00ed sign\u00e1l\u016f v Lyra pou\u017e\u00edv\u00e1 hlasov\u00fd model na b\u00e1zi syst\u00e9mu strojov\u00e9ho u\u010den\u00ed, kter\u00fd umo\u017e\u0148uje rekonstruovat chyb\u011bj\u00edc\u00ed informace na z\u00e1klad\u011b typick\u00fdch charakteristik \u0159e\u010di. Referen\u010dn\u00ed implementace k\u00f3du je naps\u00e1na v C++ a \u0161\u00ed\u0159\u00ed se pod licenc\u00ed Apache 2.0. <\/p>\n

Na rozd\u00edl od z\u00e1sadn\u011b p\u0159epracovan\u00e9 verze Lyra 1.2, kter\u00e1 byla p\u0159enesena na novou architekturu neuronov\u00e9 s\u00edt\u011b, byla ve verzi 1.3 optimalizov\u00e1na model strojov\u00e9ho u\u010den\u00ed bez architektonick\u00fdch zm\u011bn. V nov\u00e9 verzi byly pro ukl\u00e1d\u00e1n\u00ed vah a prov\u00e1d\u011bn\u00ed aritmetick\u00fdch operac\u00ed m\u00edsto 32bitov\u00fdch \u010d\u00edsel s pohyblivou \u0159\u00e1dovou \u010d\u00e1rkou pou\u017eity 8bitov\u00e9 cel\u00e1 \u010d\u00edsla, co\u017e vedlo ke sn\u00ed\u017een\u00ed velikosti modelu o 43 % a zrychlen\u00ed pr\u00e1ce s modelem o 20 % p\u0159i testov\u00e1n\u00ed na smartphonu Pixel 6 Pro. Kvalitu \u0159e\u010di se poda\u0159ilo zachovat na stejn\u00e9 \u00farovni, ale form\u00e1t p\u0159en\u00e1\u0161en\u00fdch dat se zm\u011bnil a nen\u00ed kompatibiln\u00ed s p\u0159edchoz\u00edmi verzemi.
\n
Zdroj: opennet.ru<\/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\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\udd47Aktualizace otev\u0159en\u00e9ho audio kodeku Lyra 1.3 | ProHoster","description":"Spole\u010dnost Google zve\u0159ejnila verzi audio kodeku Lyra 1.3, zam\u011b\u0159enou na dosa\u017een\u00ed vysok\u00e9 kvality p\u0159enosu hlasu v podm\u00ednk\u00e1ch omezen\u00e9ho objemu p\u0159en\u00e1\u0161en\u00fdch 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