AAC amapatsa bwino khalidwe la mawu kuposa MP3 pa zofanana bitrates, kugwiritsira ntchito Apple Music ndi YouTube.
Ntchito Zofala
Kutsitsa Nyimbo za Apple ndi iTunes
Kuwonera mawu pa YouTube
Ma audio apamwamba kwambiri m'mafayilo ang'onoang'ono kuposa MP3
AAC Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu
Kodi ndi AAC audio wapamwamba?
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AAC ndi lossy audio mtundu. The encoder amachotsa inaudible mafrequencies ndi masked maganizo kuti afike wapamwamba kukula pafupifupi theka la uncompressed equivalent. Re-encoding AAC kuti wina lossy mtundu amachititsa kuwonongeka kwa mtundu; kusintha kuchokera lossless master pamene ndi kotheka. AAC ndi waukulu Apple audio mtundu ndi ndi default kwa ambiri iOS mapulogalamu kuphatikizapo Voice Memos ndi Music app.
Kodi kuchuluka kwabwino kwatha kuwonongeka m'fayilo ya AAC?
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AAC compresses ndi modeling zimene nkhope sadzaona - chisoni maganizo ozungulira pansi olimba, ma frequencies pa malire a kumvetsera - ndi mwamsanga kuchotsa izo. Pa bitrate bwino kuti ndi inaudible kwa pafupifupi aliyense. zimene sizosatheka ndi reversible, kotero kusintha kuti lossless mtundu amateteza dziko latsopano kuposa kubwezeretsa oyambirira. AAC ndi lossy koma bwino kuposa MP3, ndipo amagwira mpaka 48 ma channels mwachilengedwe kuposa kukhala bolted pa stereo kupanga.
Popeza foni imalemba chilichonse chomwe chimapanga chip chake mu hardware, ndipo AAC ndi chomwe chimapangidwa ndi silicon. Kamera ya kamera siyifunsa - imalemba mtundu womwe chipangizocho chimatha kupanga panthawi yomaliza yomaliza popanda kuwala. Kusintha pambuyo pake ndi koyenera ndipo sichiwononga chilichonse pamtundu ngati musankha chida chomwe chimasunga ndalama zofanana. AAC ndi Advanced Audio Coding, standardized mu 1997 monga MPEG-2 Part 7 ndi anapanga mosasamala kuti ayambe MP3.
Kodi woimba, album ndi kusindikiza kwa AAC anga adzakhala ndi kusintha?
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Amachita zomwe mtundu wofunikira uli ndi malo omwe angawaike. AAC amayendetsa ma tag ndi mapangidwe ophatikizidwa ngati gawo la fayilo, ndipo kusintha kumakopa pamalo onse omwe amamvetsetsa. Ma targets opanda kulumikizana ndi chiwopsezo - adafotokozedwa pambuyo polemba kuti kulemba kwachikhalidwe ndi kuyembekezera koyenera ndipo samangokhala ndi chilichonse, kotero buku losinthidwa ndi njirayi limafika ngati mchenga wa nyimbo zopanda dzina.
Kodi fayilo ya AAC ingagwiritsidwe ntchito ndi 5.1 surround mix?
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Yes — format imagwira bwino ntchito ndi ma channels ambiri kuposa awiri, kotero kuti surround mix imasunga ma channels ake ophatikizidwa m’njira yoyenera, osati kuikidwa mu stereo. Kodi mumamva ngati surround kumadalira pa mbali ya mbali: wolandirayo adzachotsa ma channels onse, foni idzalowetsa ma sounds pa nthawi yosewera, ngakhale. Kusintha kwa stereo format imachititsa kuti ma channels azikhala ophatikizidwa m’njira yoyenera.
Kodi AAC idzasewera mobwerezabwereza patsamba la webusaitiyi?
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Ndikukhulupirira. AAC ndi imodzi mwamaudindo a audio omwe mabrowser amagwiritsa ntchito, motero amatha kutulutsidwa m'mawu a audio kapena wosewera podcast ndipo amagwira ntchito kumapeto kwa mafoni popanda plugin kapena fayilo ya fallback. Izi zimapangitsa kuti zikhale zotetezeka zofalitsa, ndipo chifukwa chake kusinthira kujambula kwa exotic ku mtunduwu ndi njira yofupikitsa kuti ikhale yosewera patsamba. AAC akuoneka bwinobwino kuposa MP3 pansi 128 kbps ndi default audio track mu MP4, YouTube, Apple Music ndi kufalitsa.
Kodi ndiyenera kusintha bwanji mafayilo anga a AAC?
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Kugwirizana ndi malo osankhidwa, si cholinga. Kwa nyimbo, 256 mpaka 320 kbps ndi zosaoneka kwa aliyense womvetsera; kwa mawu ndi podcasts, 96 mpaka 128 kbps ndi zambiri ndipo amadula fayilo ku theka. Kulemba mawu kudzera pa ma bitrate ochokera kumawononga malo - amasunga mawu omwe kale apita ku lossy pass ndipo sabwezeretsa chilichonse chomwe chimatulutsidwa ndi wolemba mawu woyamba.
Kodi kugwiritsa ntchito AAC kumafunikira chilolezo cha patent?
