{"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\/it\/blog\/news\/alyans-aomedia-razvivaet-zvukovoj-kodek-oac-open-audio-codec-osnovannyj-na-opus","title":{"rendered":"L'alleanza AOMedia sviluppa il codec audio OAC (Open Audio Codec), basato su Opus","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>L'alleanza Open Media (AOMedia), che coordina lo sviluppo del formato di codifica video AV1\/AV2, del formato audio volumetrico IAMF e del formato immagini AVIF, ha avviato lo sviluppo di un codec audio Open Audio Codec (OAC), presentato come un'evoluzione del codec Opus, sviluppato dall'organizzazione Xiph.Org. Come implementazione di riferimento per il codificatore e il decodificatore OAC sotto licenza BSD \u00e8 stata proposta la libreria liboac, creata sulla base del codice della libreria libopus.    <\/p>\n<p>L'obiettivo principale di OAC \u00e8 la trasmissione di voce e suono via internet. Il codec \u00e8 adatto per diverse applicazioni legate alla trasmissione audio interattiva e pu\u00f2 essere utilizzato in vari settori, dalla telefonia VoIP e videoconferenze ai chat di gioco e concerti in remoto. OAC \u00e8 scalabile sia per la compressione di audio in streaming ad alta bit rate, ad esempio, per la trasmissione di musica stereo di alta qualit\u00e0, sia per la compressione della voce in canali di comunicazione a banda limitata.       <\/p>\n<p>Lo sviluppo \u00e8 ancora nella fase alpha iniziale. Il flusso di bit (bitstream) prodotto dalla libreria liboac, al momento attuale, non deve essere utilizzato per la distribuzione di file OAC, poich\u00e9 include dati di debug aggiuntivi e non supporta il cambio di posizione nel flusso (seeking).      <\/p>\n<p>A parte l'assenza di menzione riguardo alla regolazione dinamica del bit rate, alla gamma di frequenze audio e alle dimensioni dei frame, l'elenco delle funzionalit\u00e0 di OAC ripete la descrizione del codec Opus 1.5:    <\/p>\n<ul>\n<li class=\"l\">Bitrate da 6 Kbit\/s a 510 Kbit\/s;  <\/li>\n<li class=\"l\">Frequenza di campionamento da 8 a 48 kHz;  <\/li>\n<li class=\"l\">Durata dei frame da 2,5 a 60 millisecondi;  <\/li>\n<li class=\"l\">Supporto per bitrate costanti (CBR) e variabili (VBR);  <\/li>\n<li class=\"l\"> Supporto fino a 255 canali;\n<li class=\"l\">Supporto per audio a banda ristretta e larga;  <\/li>\n<li class=\"l\">Supporto per voce e musica;  <\/li>\n<li class=\"l\">Supporto per stereo e mono;  <\/li>\n<li class=\"l\">Possibilit\u00e0 di recuperare il flusso audio in caso di perdita di pacchetti (PLC);    <\/li>\n<li class=\"l\">Disponibilit\u00e0 di implementazioni che utilizzano aritmetica in virgola mobile e fissa.  <\/li>\n<\/ul>\n<p>Fonte: <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 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" 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