{"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\/da\/blog\/news\/obnovlenie-otkrytogo-audiokodeka-lyra-1-3","title":{"rendered":"Opdatering af den open source lydkodek Lyra 1.3","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Google har udgivet version 1.3 af lydkodeks Lyra, som har til form\u00e5l at opn\u00e5 h\u00f8j kvalitet ved overf\u00f8rsel af stemme under begr\u00e6nsede dataoverf\u00f8rselsforhold. Tale kvalitet ved bitrater p\u00e5 3,2 kbps, 6 kbps og 9,2 kbps ved brug af Lyra-kodeks svarer omtrent til bitrater p\u00e5 10 kbps, 13 kbps og 14 kbps ved brug af Opus-kodeks. For at l\u00f8se denne opgave anvender Lyra, ud over almindelige metoder til lydkomprimering og signalbehandling, en talemodel baseret p\u00e5 maskinl\u00e6ring, som muligg\u00f8r genoprettelse af manglende information baseret p\u00e5 typiske talekarakteristika. Den referenceimplementering er skrevet i C++ og distribueres under Apache 2.0-licensen. <\/p>\n

I mods\u00e6tning til den radikalt omarbejdede version 1.2 af Lyra, der blev pr\u00e6senteret i oktober og bygget p\u00e5 en ny neurnetv\u00e6rksarkitektur, er der i version 1.3 blevet foretaget optimering af maskinl\u00e6ringsmodellen uden \u00e6ndringer i arkitekturen. I den nye version benyttes 8-bit heltal til at opbevare v\u00e6gte og udf\u00f8re aritmetiske operationer i stedet for 32-bit flydende tal, hvilket har resulteret i en st\u00f8rrelse reduktion af modellen p\u00e5 43% og en 20% hurtigere drift af modellen ved test p\u00e5 en Pixel 6 Pro smartphone. Tale kvalitet er dog blevet opretholdt p\u00e5 samme niveau, men formatet for de overf\u00f8rte data er \u00e6ndret og er ikke kompatibelt med tidligere versioner.
\n
Kilde: 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\udd47Opdatering af det \u00e5bne lydkodeks Lyra 1.3 | ProHoster","description":"Google har udgivet version 1.3 af lydkodeks Lyra, som har til form\u00e5l at opn\u00e5 h\u00f8j kvalitet ved overf\u00f8rsel af stemme under begr\u00e6nsede 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