AAC imapereka mawu abwino kuposa MP3 pamlingo wofanana wa bit, womwe umagwiritsidwa ntchito ndi 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 unheard mafrequencies ndi masked maganizo kuti afike wapamwamba kukula pafupifupi theka la uncompressed equivalent. Re-encoding AAC kuti wina lossy mtundu amachititsa kuwonongeka kwa katundu; kusintha kuchokera lossless master pamene ndi zotheka. AAC ndi First-class 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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Chomwecho, choyamba cholembacho chinaganiza kuti chidzawononge, ndipo sichingathe kubwezeretsedwanso. AAC chimachotsa popanga zomwe nkhope sizingawone - ma sounds oyera omwe ali pansi pa olimba, ma frequencies pa ma edge a kumvetsera - ndi kuchotsa kwa nthawi yayitali. Pa bitrate yolimba yomwe siyimadziwika kwa anthu ambiri. Zimene sizosinthasintha, chifukwa chake kusintha kwa mtundu wopanda kuwonongeka kumateteza dziko latsopano kuposa kubwezeretsa mtundu woyamba. AAC ndi lossy koma bwino kuposa MP3, ndipo amagwira mpaka 48 ma channels mwachilengedwe kuposa kukhala bolted pa stereo kupanga.
Popeza foni yam'manja imalemba chilichonse chomwe chimapanga chip yake mu hardware, ndipo AAC ndi chomwe chimapangidwa ndi silicon. App ya kamera siyifunsa - imalemba mtundu womwe chipangizocho chimatha kupanga panthawi yomaliza ya framerate popanda kutentha. 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 yanga kumatha kusinthidwa?
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Amachita komwe mtundu wofunikira uli ndi malo omwe angawaike. AAC amayendetsa ma tag ndi mapangidwe ophatikizidwa ngati gawo la fayilo, ndipo kusintha kwa ma copy a pamalo onse omwe amamvetsetsa. Ma targets opanda malire ndi osiyana - adafotokozedwa pambuyo poti kulemba kwa tag ndi koyenera ndipo samangokhala ndi chilichonse, choncho buku losinthidwa limakhala ngati mchenga wa nyimbo zopanda dzina.
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 AAC idzasewera mobwerezabwereza patsamba la webusaiti?
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Ndikukhulupirira. AAC ndi imodzi mwamaudindo a audio omwe amagwiritsa ntchito masamba, motero amatha kutulutsidwa m'mawu a audio kapena wosewera podcast ndipo amagwira ntchito zonse popanda plugin kapena fayilo ya fallback. Izi zimapangitsa kuti zikhale zotetezeka zofalitsa, ndipo chifukwa chake kusinthira kujambula kwa exotic ku format iyi nthawi zambiri 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 fayiloyo 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?
