M4A Amathuluzi

Tshintsha M4A kuya futhi kusuka kumafomethi ahlukahlukene

Mayelana M4A

I-M4A ifomethi yefayela lomsindo ehlobene eduze ne-MP4. Inikeza ukucindezelwa komsindo kwekhwalithi ephezulu ngokusekelwa kwemethadatha, okuyenza ifanelekele izinhlelo zokusebenza ezihlukahlukene.

Ukusetshenziswa Okuvamile

iTunes music
Audiobooks
Podcast episodes

M4A Imibuzo Evame Ukubuzwa Yokuguqulwa

Yini ihele lomsindo le-M4A?

M4A yifomethi yomsindo olahlekelwayo. I-encoder isusa iziqongo ezingadingekile nezisindo ezifihlakeleyo ukuze zifike kubukhulu befayela cishe ishumi lengxenye ye-uncompressed equivalent. Ukubuyisela-ukukopisha i-M4A kusinye ifomethi elahlekile kwenza ukulimala kwekhwalithi yohlobo; ukuguqula kusuka ku-lossless master uma kudingeka. M4A iyifomethi yomsindo ye-Apple ye-class yokuqala futhi iyiphutha lezinhlelo eziningi ze-iOS kufaka phakathi i-Voice Memos ne-Music app.

Ingabe kukhulu kangakanani ukubukeka okulahlekile kuhele M4A?

Noma yini oyenzayo i-encoder yakuqala isinqume ukuyisusa, futhi ayikwazi ukubuyiselwa. M4A icindezela ngokumodela lokho okungeke kuphawulwe yindlebe — umsindo ohlanzekile ohlala ngaphansi kwalawo anamandla, ukusakazeka ezindaweni eziphezulu zokulalela — futhi isuse ngokuqhubekayo. Ku-bitrate ephephile engeke ikwazi ukulizwa yinoma ngubani. Okungaba khona kubuyiselwa emuva, ngakho ukushintshana kufomethi engalahleki igcina isimo samanje ngaphandle kokubuyisela okungaphambilini. M4A igcina i-AAC emibonweni eminingi, noma i-Apple Lossless (ALAC) uma ivela ku-lossless rip.

Kungani ifoni yami igcina konke njenge M4A?

Ngenxa yokuthi i-handset ikhonjiswa kunoma yini i-chip yayo eyenza kwi-hardware, futhi M4A yilokho okuhlelwe ngaso i-silicon. Ikhamera i-app ayibuzanga — ibhala ifomu elisetshenziswa likwazi ukulikhiqiza ngezinga lefreyimu eligcwele ngaphandle kokufudumeza. Ukushintsha ngemuva kujwayelekile futhi akudingeki lutho kukhwalithi uma ukhetha okudingayo okugcina u-payload ofanayo. M4A yi MP4 ibhokisi elimaza umsindo kuphela, futhi lokhu iTunes, Apple Music kanye iPhone Voice Memos app kukhiqiza.

Ingabe umculi, i-album nesithombe sokuzivikela ku M4A yami sizohlala siguqulwa?

Bakwenza lapho ifomu eligunyaziwe linesizinda sokubeka. M4A lithwala izithonjana nemisebenzi yezandla efakwe njengengxenye yefayela, futhi ukuguqulwa kwenza amakhophi ngaphesheya kwendawo elingaqondakalayo. Izithonjana ezingacindezelwanga ziyisinqumo - zicacisiwe ngaphambi kokuphawula kwakuyithemba elijwayelekile futhi zigcina cishe akukho, ngakho ithala eliguqulwe ngalo ndlela lifika njengedonga lemisindo engabizwanga.

Ingabe ihele M4A lingathwala i-5.1 surround mix?

Yebo - ifomu liphatha iziqhagamshelanisi ezingaphezu kwezingu-2 ngokufanele, ngakho-ke ukuhlanganisa okugqamile kugcina isakhiwo sesiqhingi saso ngaphandle kokucindezelwa kwe-stereo ngendlela efanele. Uma ukhuluma ngayo njenge-surround kuxhomekeka kukuphela kokuphela: umlayezo uzosusa wonke ama-channels, ifoni izocindezela phantsi ngesikhathi sokudlala ngaphandle kokukhathazeka. Ukushintshana ku-stereo-only format kwenza ukuthi ucindezelwe ngokuqhubekayo.

Ingabe M4A izodlala ngokuqondile kwikhasi le-web?

Yebo. M4A iphakathi kwefomethi yomsindo i-browser iyi-decode, ngakho ingafakwa kungxenyekazi yomsindo noma kumdlali wepodcast futhi isebenza kuwo wonke amathuluzi ngaphandle kweplugin noma ihele elibuyela emuva. Lokhu kwenza kube yinjongo yoshicilelo ephephile, futhi yilokho okushintsha ukurekhodwa okungekuhle kube yifomethi evame ukube yindlela encane yokuyithola idlala kuwebhusayithi. M4A igcina i-iTunes-style metadata, amasigaba kanye nemisebenzi yezandla egcwele, futhi iyifomethi yomsindo ovela ezweni lonke nganoma iyiphi idivayisi ye-Apple.

Ingabe ngidinga iMac ukusebenza namafayela M4A?

Akuna. Ifomethi yavela Apple futhi yilokho izinhlelo zayo nesoftware kukhiqiza ngokuzenzakalela, kodwa amafayela ngokwawo zivamile futhi ukufunda kahle elsewhere ngethuluzi elifanele. Ukushintsha lapha kwenzeka kuseva, ngakho akukho QuickTime ukufakela, akukho Apple hardware futhi akukho platform-specific codec pack ihlobene nanoma kuphi kwinqubo.

Yini i-bitrate okufanele ngiyiguqule amafayela ami M4A?

Uhlu lwendawo esiya kuyo, hhayi umsuka. Ukudlalwa kwengoma, 256 kuya ku-320 kbps kucacile kuwo wonke umuntu olalelayo; ukukhuluma nokulalela ipodcasts, 96 kuya ku-128 kbps kuningi futhi kushiya ihele ngaphesheya. Ukungenisa umsindo ngaphezu komsuka we-bitrate kulahlekile isikhala — kugcina umsindo osele udlulele nge-lossy pass futhi akubuyiseli lutho umngenisi wokuqala olahlekile.

Ingabe i-M4A inephutha noma ayinaphutha?

M4A ilahlekelwa — umbhalo-mbhalo ususa idatha umbhalo-mbhalo ucabanga ukuthi ayikwazi ukulinganiswa ukuze ifike kubungakanani befayela elincane. M4A ifihla izinto ezimbili ezihlukile kakhulu emuva kolunye ubanzi - lossy AAC kanye lossless ALAC - futhi hhayi-Apple hardware usizo akulingani.

Yini okufanele ngiguqule M4A ukuze ngiyihlukanise?

Ukuthumela i-imeyili kanye nokubelana ngemidiya yomphakathi, guqula i-M4A ibe yi-MP3 — ukusakazwa okuphelele nobukhulu befayela elincane. Ukusebenzisana okuphezulu-nokuzinikela nabangani besandi, guqula ube yi-FLAC noma i-WAV ukuze ugcine ukhwalithi yokuqala.