{"id":114134,"date":"2024-03-05T18:26:01","date_gmt":"2024-03-05T16:26:01","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/dostupen-audiokodek-opus-1-5"},"modified":"2024-03-05T18:26:01","modified_gmt":"2024-03-05T16:26:01","slug":"dostupen-audiokodek-opus-1-5","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/dostupen-audiokodek-opus-1-5","title":{"rendered":"Audio koodek Opus 1.5 on saadaval","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Peaaegu aasta kestnud arendust\u00f6\u00f6 j\u00e4rel esitles organisatsioon Xiph.Org, mis tegeleb avatud video- ja helikodekite loomisega, audio kodeki Opus 1.5 v\u00e4ljalaskmist, mis tagab k\u00f5rge kodeerimise kvaliteedi ja minimaalse viivituse nii k\u00f5rge bitim\u00e4\u00e4raga voogedastuse kui ka piiratud ribalaiusega VoIP-telefoni rakenduste puhul. Kodeerija ja dekodeerija viidatud realiseeringud on saadaval BSD litsentsi alusel. T\u00e4ielikud Opus formaadi spetsifikatsioonid on avalikult k\u00e4ttesaadavad, tasuta ja kinnitatud internetistandardina (RFC 6716).     <\/p>\n<p>Koodek on loodud parimate tehnoloogiate kombinatsiooni kaudu, kasutades Xiph.org'i loodud koodekit CELT ja Skype'i v\u00e4lja t\u00f6\u00f6tatud koodekit SILK. Lisaks Skype'ile ja Xiph.Org'ile osalesid Opuse arendamisel ka sellised ettev\u00f5tted nagu Mozilla, Octasic, Broadcom ja Google. Opusesse kaasatud patendid on s\u00e4ilitatud osalenud ettev\u00f5tete poolt piiranguteta kasutamiseks ilma litsentsitasude maksmiseta. K\u00f5ik Opusega seotud intellektuaalomandi \u00f5igused ja patente k\u00e4sitlevad litsentsid delegeeritakse automaatselt Opust kasutavatele rakendustele ja toodetele ilma lisalubade vajaduseta. Kliendile, kes kasutas Opust, ei kehti piirangud rakenduse ja alternatiivsete kolmandate osapoolte rakenduste loomise suhtes. K\u00f5ik antud \u00f5igused t\u00fchistatakse, kui keegi algatab Opuse tehnoloogiaid h\u00f5lmava patendi vaidluse \u00fcksk\u00f5ik millise Opuse kasutaja vastu.    <\/p>\n<p>Opus paistab silma k\u00f5rge kvaliteedi kodeerimise ja minimaalsete latentsustega nii k\u00f5rge bitikiirusaga voogedastuse kui ka piiratud ribalaiusega VoIP-telefonia rakenduste puhul. Varem tunnustati Opust parima koodekina 64Kbit bitikiirusel (Opus \u00fcletas sellised konkurendid nagu Apple HE-AAC, Nero HE-AAC, Vorbis ja AAC LC). Opust toetavate toodete seas on m\u00e4rkimisv\u00e4\u00e4rsed brauser Firefox, raamistiku GStreamer ja paket FFmpeg.        <\/p>\n<p>Opuse peamised omadused:  <\/p>\n<ul>\n<li class=\"l\">Bitikiirus vahemikus 5 kuni 510 Kbit\/s;  <\/li>\n<li class=\"l\">Sampling frequency from 8 to 48 kHz;  <\/li>\n<li class=\"l\">Raamide kestus vahemikus 2.5 kuni 120 millisekundit;  <\/li>\n<li class=\"l\">Support for constant (CBR) and variable (VBR) bitrates;  <\/li>\n<li class=\"l\">Support for narrowband and wideband audio;  <\/li>\n<li class=\"l\">Support for both voice and music;  <\/li>\n<li class=\"l\">Support for stereo and mono;    <\/li>\n<li class=\"l\"> Tugi d\u00fcnaamilisele bitikiirus, ribalaiuse ja raami suuruse seadistamisele;  <\/li>\n<li class=\"l\">Ability to recover the audio stream in case of packet loss (PLC);  <\/li>\n<li class=\"l\"> Tugi kuni 255 kanalile (mitmevoogilised raamid)  <\/li>\n<li class=\"l\">Availability of implementations using both floating-point and fixed-point arithmetic.  <\/li>\n<\/ul>\n<p>Opus 1.5 peamised uuendused:  <\/p>\n<ul>\n<li class=\"l\"> Kodeerijas ja dekodeerijas on laiendatud masin\u00f5ppe tehnoloogiate kasutamist.\n<li class=\"l\"> Tehtud on mehhanism &#171;Deep Redundancy&#187; (DRED), mis kasutab masin\u00f5pet heli fragmentide taastamiseks, mis on kadunud pakettide kaotuse t\u00f5ttu.\n<li class=\"l\"> Helivoo taastamine raamide kadumise korral on paranenud masin\u00f5ppe mehhanismi Deep PLC (Packet Loss Concealment) abil.\n<li class=\"l\"> Mugavuse parendamine madalate bitim\u00e4\u00e4rade (~ 6 Kbit\/s) helikvaliteedis.\n<li class=\"l\"> Lisatud t\u00e4iendavad optimeerimised, mis kasutavad AVX2 (x86) ja Neon (ARM) k\u00e4skude komplekte.\n<li class=\"l\"> Lisatud tugi 4. ja 5. j\u00e4rgu Ambisonics helivormingule, mis arvestab heli levikut mitte ainult horisontaalses, vaid ka vertikaalses suunas (kuidas m\u00e4\u00e4rata heliallika asukohta \u00fcle v\u00f5i all).       <\/ul>\n<p>Koheselt p\u00e4rast v\u00e4ljalaskmist on moodustatud Opus 1.5.1 versioon, milles on lahendatud probleemid Meson ehituss\u00fcsteemiga (CMake s\u00fcsteemi puhul probleem ei puudutanud).<br \/>\n<br \/>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=60731\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 \u043f\u043e\u0447\u0442\u0438 \u0433\u043e\u0434\u0430 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u044f Xiph.Org, \u0437\u0430\u043d\u0438\u043c\u0430\u044e\u0449\u0430\u044f\u0441\u044f \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u043e\u0439 \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u044b\u0445 \u0432\u0438\u0434\u0435\u043e- \u0438 \u0430\u0443\u0434\u0438\u043e\u043a\u043e\u0434\u0435\u043a\u043e\u0432, \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b\u0430 \u0440\u0435\u043b\u0438\u0437 \u0430\u0443\u0434\u0438\u043e\u043a\u043e\u0434\u0435\u043a\u0430 Opus 1.5, \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u044e\u0449\u0435\u0433\u043e \u0432\u044b\u0441\u043e\u043a\u043e\u0435 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u043e \u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0438 \u043c\u0438\u043d\u0438\u043c\u0430\u043b\u044c\u043d\u0443\u044e \u0437\u0430\u0434\u0435\u0440\u0436\u043a\u0443 \u043a\u0430\u043a \u043f\u0440\u0438 \u0441\u0436\u0430\u0442\u0438\u0438 \u043f\u043e\u0442\u043e\u043a\u043e\u0432\u043e\u0433\u043e \u0437\u0432\u0443\u043a\u0430 \u0441 \u0432\u044b\u0441\u043e\u043a\u0438\u043c \u0431\u0438\u0442\u0440\u0435\u0439\u0442\u043e\u043c, \u0442\u0430\u043a \u0438 \u043f\u0440\u0438 \u0441\u0436\u0430\u0442\u0438\u0438 \u0433\u043e\u043b\u043e\u0441\u0430 \u0432 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u043d\u044b\u0445 \u043f\u043e \u043f\u0440\u043e\u043f\u0443\u0441\u043a\u043d\u043e\u0439 \u0441\u043f\u043e\u0441\u043e\u0431\u043d\u043e\u0441\u0442\u0438 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f\u0445 VoIP-\u0442\u0435\u043b\u0435\u0444\u043e\u043d\u0438\u0438. \u042d\u0442\u0430\u043b\u043e\u043d\u043d\u044b\u0435 \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 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u044e\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 BSD. \u041f\u043e\u043b\u043d\u044b\u0435 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 [&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-114134","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\" content=\"\u041f\u043e\u0441\u043b\u0435 \u043f\u043e\u0447\u0442\u0438 \u0433\u043e\u0434\u0430 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u044f Xiph.Org, \u0437\u0430\u043d\u0438\u043c\u0430\u044e\u0449\u0430\u044f\u0441\u044f \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u043e\u0439 \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u044b\u0445 \u0432\u0438\u0434\u0435\u043e- \u0438 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