Tag nrho cov ntsiab lus HD zoo li zoo tshaj qhov standard-txhais los yog TV qhia, tab sis koj puas paub tias muaj ntau theem ntawm HD zoo? Thaum lub khw iTunes pib muab cov ntsiab lus hauv HD, nws tsuas yog txaus siab rau cov tsawg ntawm cov theem: 720p. Raws li qhov zoo dua-kev xaiv, hu ua 1080p thiab 4K, tau ua tus qauv rau HD li thiab cov ntsiab lus, lub khw iTunes tau upgraded, heev.
Tau txais cov ntsiab lus tshaj plaws-tsis yog lub neej nyob ntawm iTunes, tiam sis nws yog qhov koj xav tau. Luckily, nrog ib qhov chaw me me hloov, koj tuaj yeem xyuas kom meej tias koj yuav tsum tau txais cov yeeb yaj kiab zoo tshaj 1080p ntawm lub khw hauv iTunes.
Qhov sib txawv ntawm 720p, 1080p, thiab 4K HD
Qhov peb tseemceeb HD kev cai-720p, 1080p, thiab 4K-yog txhua tus txhais tau siab thiab tej zaum yuav nyuaj rau kev siv lub qhov muag liab qab, tab sis lawv tsis yog tib yam. Qhov sib txawv ntawd yuav pom tau ntau thaum saib 720p cov ntsiab lus ntawm ib lub tshuab uas txhawb 4K. Daim duab zoo, ua li ntawd, yuav tsis zoo li 1080p cov ntsiab lus ntawm 1080p ntaus ntawv los yog 4K ntawm ib lub iPad 4K.
Tus qauv 720p HD muaj 1280 x 720-pixel daws teeb meem, thaum lub 1080p txheem packs hauv 1920 x 1080 pixels. Lub 4K hom ntawv haj yam ntxiv, muab dluab nrog ib txoj kev daws teeb meem ntawm 4096 x 2160 pixels (technically ob lub tswv yim tsim nyog raws li 4K; lwm tus yog 3840 x 2160). Needless hais, 4K dluab muaj ntau cov ntaub ntawv thiab ntau pixels, ua rau ib tug ntxiv kom ntxaws thiab zoo duab.
Nws yog tsim nyog paub tias vim hais tias 1080p cov ntsiab lus muaj 2.25 npaug li ntau pixels li 720p cov ntsiab lus, thiab 4K muaj 4 lub sij hawm pixels ntawm 1080p, zoo dua-saib hom nqa ntau qhov chaw cia thiab yuav siv sij hawm ntev dua mus download tau. Hais tias, Kua lub compression technology pub rau nws los ua cov ntaub ntawv 1080p uas yog 1.5 npaug loj tshaj 720p cov ntaub ntawv, raws li Ars Technica, uas txhais cov ntsiab lus los ntawm iTunes Khw tuaj ceev dua thiab xav tau tsawg cia tshaj qhov koj yuav cia siab.
Kua Devices Uas Txhawb 1080p HD
Raws li teev saum toj no, thawj ob peb xyoos ntawm HD kev them nyiaj yug ntawm iTunes, cov ntsiab lus tau tsuas yog muaj nyob hauv 720p. Ua raws li qhov kev xaiv ntawd, Apple's devices tsuas yog txhawb 720p HD ntsiab lus. Nrog cov kev taw qhia ntawm 1080p ntawm iTunes, uas hloov. Raws li sau ntawv no, cov cuab yeej cuab tam qab no txhawb 1080p:
- iPhone 6 Plus , 6S Ntxiv , 7 Ntxiv , 8 Ntxiv , thiab iPhone X
- 4th tiam thiab 3 tiam tshiab kua TV
- 3lawm lub iPad (uas yog kis las rau 2048 x 1536 Retina zaub ) thiab tshiab
- Tag nrho cov niaj hnub duab thiab laptop Macs.
Ntawm chav kawm, tej HDTV uas txhawb 1080p HD kuj tuaj yeem tso saib 1080p cov ntsiab lus los ntawm iTunes.
Kua Devices uas txhawb 4K HD
Txawm ntau Apple kua yug 1080p, ntau me me yug 4K. Lawv yog:
Yuav ua li cas mus Download tau 1080p HD Cov ntsiab lus los ntawm iTunes
Txij li tsis tag nrho cov kua li ua si 1080p cov ntsiab lus, Apple muab cov neeg siv xaiv seb hom HD ntsiab lus lawv xav kom mus download tau. Koj tsis ua qhov kev xaiv no rau hauv iTunes Store thaum koj yuav lossis xauj movies lossis TV qhia. Xwb, koj xaiv qhov kev xaiv iTunes nws tus kheej. Ua li no:
- Nco ntsoov koj khiav iTunes 10.6 los yog ntau dua. Yog tsis yog, download tau nws ntawm no .
- Ces qhib Preferences (rau Mac, qhov no yog nyob rau hauv iTunes zaub mov.) Ntawm PC, nws nyob rau hauv Kho Mob).
- Nyob rau hauv qhov Preferences window, nyem rau ntawm Downloads (hauv qee lub versions ntawm iTunes, nias ntawm Khw ).
- Hauv nruab nrab ntawm lub qhov rais, saib qhov kev xaiv lub npe hu ua yeeb yaj duab full-size HD . Khij lub npov ntawm nws.
- Nyem OK kom txuag tau qhov hloov ntawd .
Koj tus iTunes yog tam sim no teem caij mus download tau 1080p cov ntsiab lus thaum twg-tab sis nws muaj ib ntes.
Qhov Kev Xam Xaj
Tsis tag nrho cov ntsiab lus hauv khw iTunes yog muaj nyob hauv 1080p hom ntawv. Nyuam qhuav hauv qab Cov Yeeb Yaj Kiab Yeeb Yaj Kiab Yeeb Yam ntawm cov yeeb yaj duab xaiv yog ib daim ntawv uas hais tias 1080p tsos yuav raug dua 720p. Nrog qhov chaw, koj mam li tau 1080p HD ntsiab lus thaum twg nws muaj. Yog tias nws tsis yog, koj yuav tau 720p.
Yog tsis muaj cov lus ceeb toom tshwj xeeb uas iTunes qhia thaum nws yuav muab rau koj 720p movie, yog li yog koj saib xyuas txog qhov koj yuav tsum tau xyuas cov lus qhia txog qhov koj xav tau. Tshawb nrhiav tau, mus rau qhov yeeb yam ntawm nplooj ntawv khw iTunes thiab nrhiav nws cov nqi. Koj yuav pom dab tsi HD hom khoom uas muaj nyob rau hauv.
Dab tsi li 4K?
Lub khw iTunes txhawb ntxiv rau 4K tsos thiab TV qhia hauv xyoo 2017, tab sis tsuas yog ib qho kev subset ntawm cov ntsiab lus nyob rau hauv cov khw muag khoom muaj nyob rau hauv 4K. Kab tias vim cov tsawg tus 4K offerings, yog tsis muaj qhov chaw hauv iTunes kom paub tseeb tias koj ib txwm download tau 4K cov ntsiab lus. Yog Apple Apple iTunes nrog qhov kev xaiv no, qhov kev qhia nyeem no yuav raug hloov, ib yam nkaus thiab.