AAC AAC

AAC Lisebelisoa

Fetola AAC ho le ho tloha ho li-formats tse ngata

Fetola AAC ho listandard tse ling

AA AC
AAC ho AC3
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AA AI
AAC ho AIFF
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AA AM
AAC ho AMR
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AA FL
AAC ho FLAC
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AA M4
AAC ho M4A
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AA MK
AAC ho MKV
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AA MO
AAC ho MOV
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AA MP
AAC ho MP3
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AA MP
AAC ho MP4
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AA OG
AAC ho OGG
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AA Op
AAC ho OPUS
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AA WA
AAC ho WAV
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AA WM
AAC ho WMA
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AA We
AAC ho WEBM
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Fetolela ho AAC

AC AA
AC3 ho AAC
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AI AA
AIFF ho AAC
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AM AA
AMR ho AAC
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AV AA
AVI ho AAC
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FL AA
FLAC ho AAC
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M4 AA
M4A ho AAC
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MK AA
MKV ho AAC
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MO AA
MOV ho AAC
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MP AA
MP3 ho AAC
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MP AA
MP4 ho AAC
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OG AA
OGG ho AAC
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Op AA
OPUS ho AAC
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WA AA
WAV ho AAC
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WM AA
WMA ho AAC
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WM AA
WMV ho AAC
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We AA
WEBM ho AAC
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Sheba tsohle Li-converter tsa molumo →

Mabapi le AAC

AAC e fana ka boleng bo betere ba modumo ho feta MP3 ka ditefiso tse tshwanang tsa bit, tse sebediswang ke Apple Music le YouTube.

Tšebeliso e Tloaelehileng

  • Apple Music le di-download tsa iTunes
  • Ho phallela molumo ho YouTube
  • Li-audio tse nang le bophahamo bo phahameng ka ho fetisisa ho li-file tse nyane ho feta MP3

AAC Lipotso Tse Botsoang Khafetsa Mabapi le Phetoho

Faele ea AAC ke eng?
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MP3 (Mofuta oa Audio oa MP3) ke mofuta oa file ea audio e sebelisoang haholo ho tsamaisa livideo.
Ho sa tsotelehe hore na encoder ea mantlha e entse qeto ea ho e tlosa,'me ha e ka khutlisoa. AAC e kopanya ka ho etsa hore eng eo hlooho e ke keng ea e bona - li-sounds tse sireletsehileng li lula ka tlase ho tse matla, li-frequencies ka lehlakoreng la ho utloa - le ho e tlosa ka ho sa feleng. Ka bitrate e phetseng hantle e sa utloahaleng ho batho ba bangata. Seo e seng sona se ka khutlisoa, ka hona ho fetola ho formate e sa hlokeng ho boloka boemo ba hona joale ho feta ho khutlisa sehlooho se kaholimo. MP3 e na le li-channel tse 48, e leng ho feta ho feta MP3, empa e na le li-channel tse 48 ho feta MP3.
Ka lebaka la hore handset encodes le chip ho feta processor,'me ena ke mofuta o hore silicon e phethela. Lingoloa tsa puo, video soundtracks le li-clip tsa ho romella li-message tsohle li tsoa ho encoder e le' ngoe, e leng hobane ba arolelana mofuta o seng o na le ho etsa le seo u neng u ngola. E bapala ka Apple hardware ntle le ho nahana le hloka ho fetola ka ho fetisisa ka linako tse ling ka hohle moo.
Ee — mofuta ona o sebetsana ka ho nepahetseng le li-channel tse fetang tse peli, ka hona ho kopanya li-surround ho boloka ho hlophisoa ha li-channel ho feta ho e-ba le ho koaloa ho stereo ka tsela e ka hare. Haeba u e utloa e le li-surround e itšetlehile ka ho qetela: mofuputsi o tla decode li-channel tsohle, mohala o tla koaloa ka nako ea ho bapala ntle le ho tšoenyeha. Ho fetola ho mofuta oa stereo feela ho etsa hore ho koaloa ho be le nako e telele.
Ha ho joalo. AAC ke e 'ngoe ea li-formats tsa audio tse nang le li-browser tse nang le li-decode, ka hona e ka ba le li-element tsa audio kapa podcast player mme e sebetsa ka hohle ntle le plugin kapa faele ea fallback. E etsa hore e be le sepheo sa ho phatlalatsa se sireletsehileng, mme ke ka hona ho fetola ho ngolisoa ha sepheo ho ea ho mofuta ona ka linako tse ling ke tsela e khuts'oane ea ho e fumana ho bapala sebakeng sa marang-rang. MP3 ke mofuta oa faele ea molumo o nang le boholo ba 128 kbps, o sebelisoang haholo ho livideo, livideo tsa YouTube, livideo tsa Apple Music le livideo tsa YouTube.
Ho lumellana le sebaka sa ho qetela, eseng le sehlooho. Bakeng sa lipina, 256 ho 320 kbps e hlakile ho ba balateli ba bangata; bakeng sa puo le podcasts, 96 ho 128 kbps e ngata ebile e tlisa faele ka ho le letšehali. Ho kopitsa ka holimo ho bitrate ea sehlooho ke sebaka se senyehileng — e boloka molumo o neng o se o ntse o na le ho tsoa ha ho na ho lahleheloa ke nako mme ha e khutlisetse eng kapa eng eo encoder ea pele e neng e e tlohetse.
Ha se bakeng sa uena. Codecs e amanang e koaheloa ke li-pools tsa patent,'me laesense e hlophisitsoe ke batho ba fanang ka decoders - the phone, the browser, the operating system - nako e telele pele faele e fihla ho uena. Ke ka hona mofuta ona o leng teng ka hohle ho hardware le hobaneng ha likhetho tse sa lefelloeng li na le ka hohle, mme ha e fetole ntho e ngoe le e ngoe ka ho fetola faele eo u e nang le eona.
Ha ho joalo ho sa tsotellehe hore na u e botsa. Ho fetoloa ho boloka palo ea mohloli — 48 kHz e lula e le 48 kHz, 44.1 kHz e lula e le 44.1 kHz — hobane ho khutlisa lipalo ke theko e nyane ea boleng bakeng sa melemo e seng teng ha ho na ntho e e hlokang. Li-exceptions ke tsa 'nete: CD tsa molumo li hloka 44.1 kHz, ba bang ba bapalami ba hardware ba khale ba amohelang ntho e ngoe le e ngoe, le li-pipelines tsa puo li batla 16 kHz. Sebetsa palo ka ho hlakileng ka linako tsena'me u e siee e le eona feela haeba ho le joalo.
Ha ho mohla,'me ho bohlokoa ho utloisisa hobaneng: ho eketseha ke letšoao, ha bytes ka hare e hlophisitsoe bakeng sa mofuta o itseng. Ho fetola lebitso ho hlahisa faele eo lebitso la eona le etsang hore ho be le ntho e itseng eo ho nang le eona ha e fane ka eona, le seo e se etsang ho bula e ka nka faele kapa e e bala ka tsela e mpe. Ho khetheha ho le mong ho na le li-formats tse peli tse nang le li-container tse tšoanang ka lebitso le fapaneng - le ka nako eo ho khutlisa ka ho nepahetseng ho sireletsehile ho feta ho fetola lebitso.
E hlakoloa ka ho toba. Ho kenya le phello e fetotsoeng e lula ho li-server tsa rona ka lihora tse ka bang 24, e leng e le nako ea ho kenya phello,'me e tlosoa ka ho hloekisa ka ho toba. Ho fetisoa ho tsamaea ka HTTPS ka litsela tse peli. Ha ho motho ea balang litaba, ha ho na sekhahla, ebile ha ho na sephethephethe ho mang kapa mang.
Ka linako tse ling lihora. Lifaele tse nyane li sebetsa kapele,'me liketsahalo tse nka nako e nepahetseng ke tseo li etsang mosebetsi o nepahetseng: ho ngolisoa ha nako e telele e lokelang ho khutlisoa ka li-code frame ka frame, ho scanneloang ha lengolo-tsoibila ho ea ka ho tsebahala ha li-character, kapa batse e kholo haholo. Ha ho fetoha ho khutlisa kapa ho khutlisa data e teng e lula e potlakile ho sa tsotelehe hore na faele e kholo hakae, hobane ha ho na ntho e ka tlosoa.
Kopitsa faele ea hau ka ho e tlisetsa ho leqephe kapa ka ho tobetsa ho sheba, khetha mofuta oa tlhahiso, ebe o qala ho fetolela. Faele e fetotsoeng e tla etsoa hore e bolokehe ha e ntse e sebetsa.

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