AC3 (Audio Codec 3) ndi Audio psinjika mtundu ambiri ntchito DVD ndi Blu-ray chimbale Audio njanji.
Ntchito Zofala
DVD audio
Surround sound
Blu-ray audio
AC3 Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu
Kodi ndi AC3 Audio File?
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AC3 ndi lossless audio mtundu - aliyense chitsanzo ndi kupulumutsidwa bit-perfectly. AC3 ndi yabwino kwa archiving akatswiri, audio kusintha, ndi iliyonse workflow kuti angathe re-encode audio nthawi zambiri popanda kusonkhana compressing artifacts. AC-3 ndi lossy multichannel audio, nthawi zambiri 5.1 pa 384 kapena 448 kbps, ndi metadata kwa dialogue normalization ndi downmixing.
Kodi ndi AC3 yoyenera kusewera pa mahedifoni?
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Sichoncho - ndi bitstream yotumiza mafilimu. A AC3 stream imabweretsa mgwirizano wa multichannel womwe umayenera kusinthidwa ndi AV wolandirayo ndikutumizidwa ku mawu anzeru omwe ali m'nyumba. Foni kapena laptop iyenera kulowetsa pansi pa ma channel awiri kuti ikhale yosewera, ndipo downmix nthawi zambiri ndi yachilendo komanso yolimba kuposa stereo track mastered as stereo. Konzani ngati malo osankhidwa ndi mahedifoni; Keep it if the destination is a receiver. AC-3 ndi surround track onse AV wolandirayo, DVD wosewera mpira ndi TV decodes natively, chifukwa chake ndibe basiline kufalitsa.
Nchifukwa chiyani chilichonse kuchokera pa diski chimatuluka ngati AC3?
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Chifukwa cha mtundu wa diski umafotokoza izi. Video, audio ndi kuyendetsa pa diski yowoneka bwino zinakhazikitsidwa m'malo mwa ntchito yoyenera kuti wosewera wa ntchito yokhazikika akhoza kuchotsa uthengawo popanda pulogalamu iliyonse. Chomwecho chimafika pa diski, chokhala ndi zolinga za nthawiyo - kulumikizana, kulemera kwamphamvu ndi kugawa mafayilo. AC-3 ndi Dolby Digital, surround mtundu standardized kwa laserdisc, DVD, ATSC kufalitsa ndi sinema mu mapema 1990s.
AC3 idafotokozedwa m'mawu okha, popanda malo oyenera kwa mutu, album kapena chithunzi chachithunzi, kotero osewera amabwereranso kukuwonetsa dzina la fayilo. Kusintha kwa mtundu wokhala ndi tag ndi zomwe zimapangitsa kuti laibulale ikhale yosakata - ma tag amalemba nthawi yosintha, osati kubwezeretsedwa, kotero yembekezerani kuwonjezera chilichonse chomwe chimachokera. AC-3 ndi yosagwira ntchito ndi standards zamakono ndi si yovomerezeka ndi masamba, mafoni kapena ambiri web player popanda downmix kuti stereo.
Nchifukwa chiyani AC3 pa diski zambiri ndi mafilimu ngati sindikusankha?
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Chifukwa chake ndi chilolezo mu hardware kuposa kusankhidwa ndi wowerenga. The mtundu anafotokozedwa monga zofunika audio kwa optical disc ndi digito kufalitsa standards, choncho aliyense wosewera, wolandira ndi set-top box anasamutsa izo kwa zaka zambiri ndi makampani masamba anasamutsa mu izo mogwirizana. kuti ubiquity mu Living-room zida ndi mofanana ndi kukana kwake kuchokera masamba ndi mafoni apps.
Yes — format imagwira bwino ntchito ndi ma channels ambiri kuposa awiri, kotero kuti surround mix imasunga ma channels ake ophatikizidwa moyenera, osati kuikidwa mu stereo panjira. Kodi mumamva ngati surround kumadalira pa mbali ya mbali: wolandirayo adzachotsa ma channels onse, foni idzalowetsa panthawi yosewera popanda vuto lililonse. Kusintha kwa stereo-only format kumachititsa kuti kuikidwa kukhale kosalekeza.
Kodi ndi vuto kuti AC3 ili ndi zaka zoposa makumi atatu?
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Age yekha si vuto - angapo mtundu kuchokera kuti nthawi ndibe bwino, makamaka chifukwa chilichonse chili ndi zaka kuti akwaniritse iwo. Zimene zikukhudza ndi zimene nthawi anaganiza: mavidiyo ang'onoang'ono, mofulumira processors, palibe netiweki, ndi zizindikiro aliyense anafunikabe. Pamene amene anaganizabebe, mtundu ndi bwino. Pamene iwo sachita, kuti ndi chifukwa chosintha.
Ndi AC3 lossy kapena lossless?
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AC3 ndi lossless - audio inu encode ndi audio inu mupeza kumbuyo.
Kodi ndiyenera kusintha AC3 kuti kugawana?
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Kwa e-mail ndi kugawana mabungwe, kusintha AC3 kuti MP3 - universal kusewera ndi ochepa kukula kwa fayilo. Kwa high-fidelity kugawana ndi audiophiles, kusintha FLAC kapena WAV kuteteza khalidwe lachibadwa.
Kodi ndi ndalama zingati kuti kusintha kusintha kukula kwa fayilo?
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Kusintha AC3 kuti lossless mtundu monga WAV kapena FLAC amasunga kukula kwakukulu; kusintha kuti MP3 kapena AAC pa common bitrates (192-320 kbps) amachepetsa fayilo ndi pafupifupi 5-10x ndi zochepa kuzindikira kusintha kwa katundu.
