Ingaba i-addition plus ye-AAC yenza kube ngcono phantsi kwazo zonke iimeko?
Unokucinga ukuba i-Apple ijongene nokuphuhlisa ifomathi ye-AAC Plus (ngezinye izihlandlo ibizwa ngokuba yi-AAC +). Kodwa, ngokwenene, igama loshishino elisetyenziswe yiCoding Technologies yefom ye-HE-AAC V1 yofomathi. Ukuba uyazibuza ukuba yiyiphi inxenye yeli gama elimeleyo, ngoko lifutshane ukuPhumelela okuPhezulu . Enyanisweni, i-AAC Plus idla ngokubizwa ngokuba yi-HE-AAC kunokuba isebenzise igama elongezelelweyo okanye uphawu +.
Izandiso zefayili zomsindo ezifakwe kwiAAC Plus zi:
- .m4a
- .MP4
- ., M4b
- .m4V
Kodwa, yintoni umehluko phakathi kwalolu hlobo kunye nefomathi ye-AAC ?
Injongo ephambili ye-HE-AAC (i-High-Efficiency Advanced Audio Encoding) xa i-audio ifuna ukuba ifakwe ngekhowudi ngokufanelekileyo kwizinga elincinane. Omnye wemimiselo engcono yile yilapho iingoma zidinga ukusasazwa kwi-intanethi isebenzisa ubuncinane bebhanwidth enokwenzeka. Ukuqhathaniswa ne-AAC esemgangathweni kulunge ngakumbi ekulondolozeni umgangatho obonakalayo kwizinga elincinci ngaphantsi kwe 128 Kbps - ngaphezulu ngokubanzi malunga ne-48 Kbps okanye ngaphantsi.
Unokucinga ukuba kulunge ngakumbi kwi-encoding audio kwizinga eliphezulu kakhulu. Emva koko, ayenayo i-Plus emva kwe-AAC (okanye i-HE phambi kwayo) inika ingqiqo yokuba kulunge yonke indawo?
Ngokudabukisayo oku akunjalo. Akukho fomathi enokuthi ibe yinto efanelekileyo kuyo yonke into kwaye i-AAc Plus inokungalindelekanga xa kuthelekiswa ne-AAC esemgangathweni (okanye i-MP3). Xa ufuna ukugcina umgangatho wokurekhoda olalelwayo usebenzisa i- codec yokulahlekelwa , kusekho bhetele ukusebenzisa i-AAC esemgangathweni xa i-bitrate kunye nobukhulu befayili akuyiyona nto ebalulekileyo.
Ukuhambelana ne-iOS ne-Android Devices
Ewe, ininzi (ukuba ayilona yonke) iifowuni eziphathekayo ezisekelwe kwi-iOS ne-Android ziya kuba zikwazi ukuhlaziya umsindo kwifom ye-AAC Plus.
Ngokuba iOS idivayisi ziphezulu kuneenguqu 4, iifayile zeAAC Plus zichongiwe ngobungakanani obuphezulu. Ukuba unesistim se-Apple esingaphezulu kwale nto ke uya kukwazi ukudlala ezi fayile, kodwa kuya kubakho ukunciphisa ukunyaniseka. Oku kungenxa yokuba inxalenye ye-SBR, equle iinkcukacha eziphezulu (ukuhamba), ayisetyenziswanga xa ihlaziywa. Iifayile ziya kunyangwa ngokungathi zifakwe ngekhowudi nge-AAC-LC (i-Complexity AAC ephantsi).
Kuthi malunga ne-Software Media Players?
Iiprogram zeendaba ze-Software ezifana ne iTunes (inguqulelo 9 nangaphezulu) kunye neWinamp (pro version) inkxaso inkxaso kunye nokuchithwa kwe-AAC Plus. Nangona ezinye i-software ezifana neVLC Media Player kunye neFoobar2000 zikwazi ukudlala kuphela ii-HE-AAC ezifakwe kwiifayile zomsindo.
Indlela Ifomathi iphumelela ngayo iComputer
I-AAC Plus i-algorithm (esetyenziswe ngamasevisi omculo osasazayo njenge-Pandora Radio), isebenzisa iteknoloji ebizwa ngokuba yi-Spectral Band Replication (SBR) ukuphucula ukuveliswa komsindo ngelixa kukhulisa ukusebenza kakuhle. Le nkqubo iyakuchaza iifom ephezulu ezingekhoyo ngokutshintsha iifom ezantsi-ezi zigcinwe kwi-1.5 Kbps. Ngokuqinisekileyo, i-SBR isetyenziswe kwezinye iifomathi ezifana ne-MP3Pro.
Ukusasaza isiXhosa
Kanye nabadlali be-software abaxhasi be- AAC Plus, iinkonzo zomculo ezisekhompyutheni ezinjenge-Pandora Radio ezikhankanywe ngaphambili (kunye nezinye iinkonzo zee- intanethi ze-intanethi ) zingasebenzisa le fomathi yokuhambisa umxholo. Isicwangciso esilungileyo sokunyanzeliswa komsindo ukusetyenziswa ngenxa yeemfuno zayo eziphantsi kwamanqanaba omhlaba - ukuhanjiswa kweentetho ngokukodwa apho kuya ngaphantsi kwe-32 Kbps ngokuqhelekileyo kumgangatho owamkelekileyo.