{"id":162582,"date":"2026-02-22T23:12:07","date_gmt":"2026-02-22T21:12:07","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/alyans-aomedia-razvivaet-zvukovoj-kodek-oac-open-audio-codec-osnovannyj-na-opus"},"modified":"2026-02-22T23:12:07","modified_gmt":"2026-02-22T21:12:07","slug":"alyans-aomedia-razvivaet-zvukovoj-kodek-oac-open-audio-codec-osnovannyj-na-opus","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/alyans-aomedia-razvivaet-zvukovoj-kodek-oac-open-audio-codec-osnovannyj-na-opus","title":{"rendered":"Aliance AOMedia vyv\u00edj\u00ed zvukov\u00fd kodek OAC (Open Audio Codec) zalo\u017een\u00fd na Opusu.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Aliance Open Media (AOMedia), kter\u00fd dohl\u00ed\u017e\u00ed na v\u00fdvoj video kodeku AV1\/AV2, form\u00e1tu prostorov\u00e9ho zvuku IAMF a form\u00e1tu obr\u00e1zk\u016f AVIF, zah\u00e1jil v\u00fdvoj zvukov\u00e9ho kodeku Open Audio Codec (OAC), kter\u00fd je prezentov\u00e1n jako pokra\u010dov\u00e1n\u00ed v\u00fdvoje kodeku Opus od organizace Xiph.Org. Jako reference implementace enkod\u00e9ru a dekod\u00e9ru OAC pod licenc\u00ed BSD byla navr\u017eena knihovna liboac, zalo\u017een\u00e1 na k\u00f3du knihovny libopus.    <\/p>\n<p>Hlavn\u00edm \u00fa\u010delem OAC je p\u0159enos \u0159e\u010di a zvuku p\u0159es internet. Kodek je vhodn\u00fd pro r\u016fzn\u00e9 aplikace spojen\u00e9 s interaktivn\u00edm p\u0159enosem zvuku a m\u016f\u017ee se pou\u017e\u00edvat v r\u016fzn\u00fdch oblastech, od VoIP telefonie a videokonferenc\u00ed po hern\u00ed chaty a vzd\u00e1len\u00e9 koncerty. OAC se \u0161k\u00e1luje jak pro kompresi streamovan\u00e9ho zvuku s vysok\u00fdm bitrate, nap\u0159\u00edklad pro kvalitn\u00ed p\u0159enos stereo hudby, tak pro kompresi hlasu v kan\u00e1lech s omezenou \u0161\u00ed\u0159kou p\u00e1sma.       <\/p>\n<p>V\u00fdvoj se zat\u00edm nach\u00e1z\u00ed v rann\u00e9 alfa f\u00e1zi. Bitov\u00fd tok (bitstream) generovan\u00fd knihovnou liboac by v sou\u010dasn\u00e9 f\u00e1zi v\u00fdvoje nem\u011bl b\u00fdt pou\u017e\u00edv\u00e1n k distribuci OAC soubor\u016f, proto\u017ee obsahuje dodate\u010dn\u00e1 lad\u00edc\u00ed data a nepodporuje vyhled\u00e1v\u00e1n\u00ed v toku.      <\/p>\n<p>S v\u00fdjimkou chyb\u011bj\u00edc\u00edho zm\u00edn\u011bn\u00ed dynamick\u00e9ho p\u0159izp\u016fsoben\u00ed bitrate, rozsahu akustick\u00fdch frekvenc\u00ed a velikosti r\u00e1mc\u016f, seznam mo\u017enost\u00ed OAC opakuje popis kodeku Opus 1.5:    <\/p>\n<ul>\n<li class=\"l\">Bitrate od 6 Kbit\/s do 510 Kbit\/s;  <\/li>\n<li class=\"l\">Frekvence vzorkov\u00e1n\u00ed od 8 do 48 kHz;  <\/li>\n<li class=\"l\">D\u00e9lka r\u00e1mc\u016f od 2,5 do 60 milisekund;  <\/li>\n<li class=\"l\">Podpora konstantn\u00edho (CBR) a prom\u011bnn\u00e9ho (VBR) bitrate;  <\/li>\n<li class=\"l\"> Podpora a\u017e 255 kan\u00e1l\u016f;\n<li class=\"l\">Podpora \u00fazkop\u00e1smov\u00e9ho a \u0161irokop\u00e1smov\u00e9ho zvuku;  <\/li>\n<li class=\"l\">Podpora hlasu a hudby;  <\/li>\n<li class=\"l\">Podpora stereo a mono;  <\/li>\n<li class=\"l\">Mo\u017enost obnovit zvukov\u00fd tok v p\u0159\u00edpad\u011b ztr\u00e1ty sn\u00edmk\u016f (PLC);    <\/li>\n<li class=\"l\">Dostupnost implementac\u00ed vyu\u017e\u00edvaj\u00edc\u00edch aritmetiku s pohyblivou a pevnou \u010d\u00e1rkou.  <\/li>\n<\/ul>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=64852\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0410\u043b\u044c\u044f\u043d\u0441 Open Media (AOMedia), \u043a\u0443\u0440\u0438\u0440\u0443\u044e\u0449\u0438\u0439 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0443 \u0444\u043e\u0440\u043c\u0430\u0442\u0430 \u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0432\u0438\u0434\u0435\u043e AV1\/AV2, \u0444\u043e\u0440\u043c\u0430\u0442\u0430 \u043e\u0431\u044a\u0451\u043c\u043d\u043e\u0433\u043e \u0437\u0432\u0443\u043a\u0430 IAMF \u0438 \u0444\u043e\u0440\u043c\u0430\u0442\u0430 \u0438\u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u0439 AVIF, \u043f\u0440\u0438\u0441\u0442\u0443\u043f\u0438\u043b \u043a \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u0437\u0432\u0443\u043a\u043e\u0432\u043e\u0433\u043e \u043a\u043e\u0434\u0435\u043a\u0430 Open Audio Codec (OAC), \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043f\u0440\u0435\u043f\u043e\u0434\u043d\u043e\u0441\u0438\u0442\u0441\u044f \u043a\u0430\u043a \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0435\u043d\u0438\u0435 \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u044f \u043a\u043e\u0434\u0435\u043a\u0430 Opus, \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0430\u043d\u043d\u043e\u0433\u043e \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0435\u0439 Xiph.Org. \u0412 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u044d\u0442\u0430\u043b\u043e\u043d\u043d\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0449\u0438\u043a\u0430 \u0438 \u0434\u0435\u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0449\u0438\u043a\u0430 OAC \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 BSD \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u0430 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0430 liboac, \u0441\u043e\u0437\u0434\u0430\u043d\u043d\u0430\u044f \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 \u043a\u043e\u0434\u0430 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-162582","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0410\u043b\u044c\u044f\u043d\u0441 Open Media (AOMedia), \u043a\u0443\u0440\u0438\u0440\u0443\u044e\u0449\u0438\u0439 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0443 \u0444\u043e\u0440\u043c\u0430\u0442\u0430 \u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0432\u0438\u0434\u0435\u043e AV1\/AV2, \u0444\u043e\u0440\u043c\u0430\u0442\u0430 \u043e\u0431\u044a\u0451\u043c\u043d\u043e\u0433\u043e \u0437\u0432\u0443\u043a\u0430 IAMF \u0438 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