{"id":105064,"date":"2022-09-11T03:36:39","date_gmt":"2022-09-11T01:36:39","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/opublikovan-svobodnyj-zvukovoj-kodek-flac-1-4"},"modified":"2022-09-11T03:36:39","modified_gmt":"2022-09-11T01:36:39","slug":"opublikovan-svobodnyj-zvukovoj-kodek-flac-1-4","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/opublikovan-svobodnyj-zvukovoj-kodek-flac-1-4","title":{"rendered":"A fost publicat codec audio liber FLAC 1.4","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Dup\u0103 nou\u0103 ani de la publicarea versiunii anterioare semnificative, comunitatea Xiph.Org a prezentat o nou\u0103 versiune a codec-ului liber FLAC 1.4.0, care ofer\u0103 codificare audio f\u0103r\u0103 pierderi de calitate. FLAC folose\u0219te doar metode de codificare f\u0103r\u0103 pierderi, ceea ce garanteaz\u0103 p\u0103strarea complet\u0103 a calit\u0103\u021bii originale a fluxului audio \u0219i identitatea acestuia cu varianta de referin\u021b\u0103, supus\u0103 codific\u0103rii. Metodele de compresie f\u0103r\u0103 pierderi permit reducerea dimensiunii fluxului audio ini\u021bial cu 50-60%. FLAC este un format de flux complet liber, care implic\u0103 nu doar deschiderea bibliotecilor ce implementeaz\u0103 func\u021biile de codificare \u0219i decodificare, ci \u0219i absen\u021ba restric\u021biilor legate de utilizarea specifica\u021biilor \u0219i crearea de variante derivate. Codul bibliotecilor este distribuit sub licen\u021ba BSD.    <\/p>\n<p>Printre cele mai importante schimb\u0103ri se num\u0103r\u0103:  <\/p>\n<ul>\n<li class=\"l\">  A fost ad\u0103ugat\u0103 suportul pentru codificarea \u0219i decodificarea cu o rezolu\u021bie de cuantificare de 32 de bi\u021bi pe mostr\u0103 (bit-per-sample).\n<li class=\"l\"> Eficien\u021ba compresiei a fost crescut\u0103 la nivelurile de la 3 la 8, \u00een schimbul unei u\u0219oare reduceri a vitezei de codificare din cauza cre\u0219terii preciziei calculului autocorel\u0103rii. Viteza de codificare pentru nivelurile 0, 1 \u0219i 2 a fost crescut\u0103. Compresia la nivelurile de la 1 la 4 a fost \u00eembun\u0103t\u0103\u021bit\u0103 u\u0219or prin modificarea euristicii adaptive.\n<li class=\"l\"> Viteza de compresie a fost semnificativ crescut\u0103 pe procesoarele ARMv8 pe 64 de bi\u021bi, datorit\u0103 activ\u0103rii instruc\u021biunilor NEON. Performan\u021ba a fost \u00eembun\u0103t\u0103\u021bit\u0103 pe procesoarele x86_64 care sprijin\u0103 setul de instruc\u021biuni FMA.\n<li class=\"l\"> API-urile \u0219i ABI-urile bibliotecilor libFLAC \u0219i libFLAC++ au fost modificate (la actualizarea la versiunea 1.4 este necesar\u0103 recompilarea aplica\u021biilor).\n<li class=\"l\"> Pluginul pentru XMMS a fost declarat \u00eenvechit \u0219i va fi eliminat \u00een urm\u0103toarea versiune.\n<li class=\"l\"> \u00cen biblioteca libFLAC \u0219i \u00een utilitarul flac a fost oferit\u0103 posibilitatea de a restric\u021biona bitrate-ul minim pentru fi\u0219ierele FLAC, p\u00e2n\u0103 la 1 bit pe mostr\u0103 (poate fi util \u00een organizarea transmisiei live).\n<li class=\"l\"> A devenit posibil\u0103 codificarea fi\u0219ierelor cu o frecven\u021b\u0103 de e\u0219antionare de p\u00e2n\u0103 la 1048575 Hz.\n<li class=\"l\"> Utilitarul flac a implementat op\u021biuni noi &#171;&#8212;limit-min-bitrate&#187; \u0219i &#171;&#8212;keep-foreign-metadata-if-present&#187;.     <\/ul>\n<p>Sursa: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57761\">opennet.ro<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u043f\u0443\u0441\u0442\u044f \u0434\u0435\u0432\u044f\u0442\u044c \u043b\u0435\u0442 \u0441 \u043c\u043e\u043c\u0435\u043d\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0448\u043b\u043e\u0439 \u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0439 \u0432\u0435\u0442\u043a\u0438 \u0441\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e Xiph.Org \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b\u043e \u043d\u043e\u0432\u0443\u044e \u0432\u0435\u0440\u0441\u0438\u044e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043a\u043e\u0434\u0435\u043a\u0430 FLAC 1.4.0, \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u044e\u0449\u0435\u0433\u043e \u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0437\u0432\u0443\u043a\u0430 \u0431\u0435\u0437 \u043f\u043e\u0442\u0435\u0440\u0438 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0430. FLAC \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442 \u0442\u043e\u043b\u044c\u043a\u043e \u043c\u0435\u0442\u043e\u0434\u044b \u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0431\u0435\u0437 \u043e\u0442\u0431\u0440\u0430\u0441\u044b\u0432\u0430\u043d\u0438\u044f \u0434\u0430\u043d\u043d\u044b\u0445 (lossless), \u0447\u0442\u043e \u0433\u0430\u0440\u0430\u043d\u0442\u0438\u0440\u0443\u0435\u0442 \u043f\u043e\u043b\u043d\u0443\u044e \u0441\u043e\u0445\u0440\u0430\u043d\u043d\u043e\u0441\u0442\u044c \u0438\u0437\u043d\u0430\u0447\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0430 \u0437\u0432\u0443\u043a\u043e\u0432\u043e\u0433\u043e \u043f\u043e\u0442\u043e\u043a\u0430 \u0438 \u0435\u0433\u043e \u0438\u0434\u0435\u043d\u0442\u0438\u0447\u043d\u043e\u0441\u0442\u044c \u0441 \u044d\u0442\u0430\u043b\u043e\u043d\u043d\u044b\u043c \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u043e\u043c, \u043f\u043e\u0434\u0432\u0435\u0440\u0433\u043d\u0443\u0442\u044b\u043c \u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044e. \u041f\u0440\u0438 \u044d\u0442\u043e\u043c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u044b\u0435 \u043c\u0435\u0442\u043e\u0434\u044b \u0441\u0436\u0430\u0442\u0438\u044f \u0431\u0435\u0437 [&hellip;]<\/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-105064","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0421\u043f\u0443\u0441\u0442\u044f \u0434\u0435\u0432\u044f\u0442\u044c \u043b\u0435\u0442 \u0441 \u043c\u043e\u043c\u0435\u043d\u0442\u0430 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