Izinselele zobuchwepheshe kanye nokuqukethwe okulinganiselwe kusho ukuthi 4K namanje akuyona into evamile
I-Apple TV 4 ayisekeli ama-4K Ultra HD TV. Lokhu kuhle uma idivayisi isungulwe ngo-2015, kodwa isimo siyaqhubeka. Kungani i-Apple iphuze ukwethulwa kokusekelwa kwe-4K, kuyini i-4K, yini eyeyindlela futhi yini esingayilindela?
Izigidi zamakhaya sezivele zinezi 4K Ultra HD TV, kodwa i-Apple TV 4 ayisekeli izinga. Kulungile, uma imodeli isethulwa kwakukhona izinselelo zobuchwepheshe, imigomo, izinsiza nokuqukethwe okwakusho ngisho noma ngabe Apple kufanele inikeze ukusekelwa okungu-4K, ngabe ngabe ayikwazanga ukuletha amakhasimende ithuba lomsebenzisi omkhulu.
Kuyini i-4K?
Isilinganiso esingu-4K (esaziwa nangokuthi i-HD HD) ekugcineni siyofaka i-HD TV. Abathengi abaningi base-US bashintsha ama-TV abo njalo eminyakeni eyisikhombisa kakhulu, ngakho-ke umjikelezo wokushintshwa uthatha isikhathi.
Abantu abasebenzisa la ma-TV angu-4K aphezulu aphezulu banezikrini okungenani amaphikiseli angu-3,840 ubukhulu namaphikiseli angu-2,160 aphezulu. Bangakwazi ukuhlinzeka ngekhwalithi yesithombe okungcono kangcono izikhathi ezine kunokuba uthola kusuka ku-HD evamile, uma nje okuqukethwe kusekela leso sinqumo (lapho, ngaphezulu ngezansi).
Labo abasebenzisa i-4K badumisa ngezithombe zayo ezicacile, ama-crisp nekhwalithi yesithombe esibukhali kakhulu. Kodwa-ke, ukutholakala kwamuva kwe-Juniper Ucwaningo kuthatha amaphesenti angu-15 kuphela ayizigidi ezingu-116.4 zase-US azoba ne-TV ye-4K ngasekupheleni kuka-2016.
"Kuzothatha iminyaka eminingana ngaphambi kokuba iningi lemindeni ye-TV libe selikulungele uku-4K UHD," kusho umcwaningi u-Ovum, u-Oleksiy Danilin.
Ukufakwa kwe-4K UHD kuzofinyelela kumaphesenti angu-25.5 kuphela emindeni ye-TV ngo-2020. I-Strategy Analytics iyavumelana nalokhu kuhlola.
Iqiniso libonakala sengathi yilokho i-Apple eyethule ukwesekwa okungu-4K ku-Apple TV 4, ngabe ngabe yathinta kuphela abambalwa ababukeli be-TV.
Lokhu kungenzeka ukuthi kwaba nethonya elibi lokwenza umkhiqizo ubonakale ungakhangisi kangako kumakhasimende angahle angenayo isethaphu esingu-4K, njengoba bekungeke bakwazi ukusebenzisa uhlelo lwaso lwe-flagship,
Kodwa Amanye Amadivayisi Ukusakaza 4K?
Ama-Amazon, i- Roku , ne-Nvidia bonke banikeza izixazululo zokusakaza ezithintana ne-Apple TV futhi zisekela i-TV ye-4K, kodwa hhayi ngaphandle kokunciphisa kancane - ngoba izinga elingu-4K alingakaze lishintshe ngokugcwele.
Cabanga ngakho njengeVHS kuya kwe-Betamax, noma i-Blu-ray ne-HD DVD.
Kungamangaza ukuthi ufunde ukuthi uma kuziwa ku-4K, amazinga wokugcina embonini awazange avunyelwe kuze kube yi-CES 2016 - izinyanga emva kokuqaliswa kwe-Apple TV 4.
Kuze kube yileso sikhathi, abakhiqizi abahlukene bathuthele amashayiphoni amathelevishini afakwe ukuqaliswa okuhlukile kokuthuthukiswa kobuchwepheshe obubalulekile be-TV 4K, i-HDR (High Dynamic Range). I-HDR ikusiza ukuba ujabulele isithombe esingcono kusuka ekude.
Lokhu kunomphumela omubi wesipiliyoni ekuhlangenwe nakho komsebenzisi. Kwakusho ukuthathwa kwe-balkanization, okusho ukuthi amanye amabhokisi okusakaza asebenze kangcono ngamanye ama-TV kunokuba ayenze nabanye.
Kungenzeka futhi ukuthi yingxenye yokuthi kungani uMnyango Wezangaphakathi Nezokuxhumana eJapane waxwayisa abathengi ukuthi ama-4K TV amasethi athengiswe khona iminyaka edinga ukuthi "abamukeli abakhethekile" bakhethe ukusakazwa kwe-4K uma beqala ngo-2018.
Ngabe i-TV ye-4K Ayikho i-TV ye-4K?
Omunye umkhawulo omkhulu ababukeli be-TV abangeke bazi ukuthi uhlezi kwizinga le-HDMI - ukufaneka okusetshenziselwa ukuxhuma ithelevishini ebhokisini eliphezulu, i-console yamageyimu noma ibhokisi lekhebula.
Ukuze ujabulele okuqukethwe okungu-4K i-TV yakho nebhokisi lakho kumele bobabili basekele i-new (ish) i-HDMI 2.0 standard - amathelevishini amaningi athengiswa njengezingqikithi ezingu-4K empeleni aziqhayise i-HDMI 2.0 port. I-Apple TV inesidingo se-HDMI 1.4, ngakho-ke noma ngabe ibhokisi elitholiwe 4K alikwazanga ukulihambisa ku-TV.
Isixazululo esisodwa esisetshenziselwa ukuthola into efana nekhwalithi engu-4K kusuka emithonjeni engewona engu-4K i-upscaling yesithombe. Amanye ama-TV we-4K wakamuva asebenzisa lolu buchwepheshe ukuze kube nokuqukethwe okuphakanyisiwe kuya ezinqumweni eziphakeme. Ekusetshenzisweni, lokhu kusho ukuthi ngisho ngenkathi i-Apple TV isakaza ividiyo engu-1,080p lokho okubonayo esikrinini kubonakala kunzima kakhulu.
Ukunyakaza kwezinselele ze-4K
Amasevisi we-4K wokusakaza asakaza ngendlela ye-H.265. Inkinga ngaleyo fomethi yukuthi ayikakhuli okwamanje njengoba i-H.264 ishintsha, ngakho izinga lezithombe lingavumelani. Apple ngeke ifune lokhu.
Kubalulekile futhi ukucabanga ukuthi uma i-Apple TV isekelwe i-4K kuzodingeka ibe ngumhlinzeki wezinto ezine-4K ngokusebenzisa i-iTunes - ukwenza kanjalo kuyobeka okuningi kokuxhuma kwinethiwekhi yayo yokulethwa kokuqukethwe.
Siyazi ukuthi i-Apple ikwandisa ingqalasizinda yayo ye-CDN (Content Delivery Network) ngezikhungo ezintsha zedatha emhlabeni wonke, kodwa inselelo akuyona nje izindleko zokusebenzisa amaseva wokuqukethwe, kodwa izindleko ezengeziwe zokuqinisekisa ukulethwa kokuqukethwe kokuqukethwe okusezingeni kanye nekhwalithi yesevisi ukulethwa kokuqukethwe ngokusebenzisa abahlinzeki abaningi bezinsizakalo.
Ama-broadband amanethiwekhi enye inselele. Akusibo bonke abanikezeli bezinsizakalo ze-broadband abasebenzisa ama-caps wokusebenzisa, kodwa labo abakwenzayo bavame ukukwenza ngokuqinile. Lokhu kusho ukuthi abalandeli be-movie abafuna ukusakaza ku-4K kumele bahlale beqaphela ukuthi basondelene kangakanani nemingcele yabo yokuhamba komkhawulo. Akukhona lokhu kuphela, kodwa ukusakaza okungu-4K okungenani okungenani okungama-20Mbps , abasebenzisi abaningi be-intanethi abangenawo .
Ngisho nangemva kokuthi imifudlana engu-4K isetshenziswe emthonjeni, izobe idinga okungenani izikhathi ezimbili kuya kathathu ububanzi benduduzo ongayidinga namhlanje ukuze ubuke ukudla okungu-1080p HD. Izinto zihlelwe ukuze zishintshe njengoba isivinini se-broadband sanda.
Uphi Okuqukethwe?
Mhlawumbe ukulungiswa okukhulu kwe-Apple TV yokunganaki kwe-4K ukungabi nakho kokuqukethwe okungu-4K ukusekela - kukhona uhlu oluhle lapha .
Ungathola okuqukethwe okuncane okungu-4K ku-Netflix, i-Amazon, ne-Sony, futhi abasakazwayo abakhulu njenge-BBC baye bahlola okulinganiselwe, kodwa okwamanje cishe wonke ama-movie obukayo asakazwa ku-1,080p HD, hhayi ku-4K.
Ungaphikisana ngokuthi ngokubeka ukusekelwa kwe-4K ngaphakathi kwama-Macs, ama-iPhones, ne-iPads, i-Apple isebenza ukugcwalisa igebe lokuqukethwe - lihlinzeka nge-Final Cut X ukuhlela lezi ziqeshana zokusakaza. Amafilimu we-hit afana ne-The Accept aqoshwa ku-4K, kodwa kuze kube yilapho abathengi abaningi betsha imali ezenzelwe ama-TVs ahambisana no-4K ukudala okuqukethwe ku-standard kuzohlala kungalinganiselwe.
Uma abasakazo beqala ukunikeza okuqukethwe okungu-4K ngevolumu engaphezulu isimo singase sithuthuke ngokushesha, njengoba lokhu kuzoshukumisela abakhiqizi bokuqukethwe ukuba benze izinto ezingu-4K. Abasakazi baqala ukuphakamisa izinga: I-Sky yase-UK yakamuva iqalise i-Ultra HD movie, i-entertainment, ne-sports package. Ukusebenzisa amakhasimende enkonzo kudinga isethi ye-4K ye-TV kanye nebhokisi le-Sky Q Silver elibheke phezulu, elinamandla okusingatha okuqukethwe okungu-4K. Kukhona ithemba lokuthi abanye abashicileli base-UK bazoqala izinhlelo zabo ze-4K ukufanisa i-Sky - Virgin Media kamuva baqala ukuxoxa ngezinhlelo zayo zokwenza kanjalo.
Imakethe ishintsha futhi. Inkampani yomzali e-ESPN, uWalt Disney, usanda kubika ukulahleka kwezigidi ezingu-7 kubhalisile phakathi kuka-Q4 2013 no-Q4 2015, kufinyelela ku-92 million. Lokhu kuchitha amakhasimende kulindeleke ukuthi kubone ezinye izigidi eziyisihlanu zishiya inkonzo yayo ekupheleni konyaka, okungase kushukumise uWalt Disney ukuba anikele ngokuqukethwe okuningi okungathengi ("I-Skinny Bundles").
Ngamanye amazwi, indlela izinto ezibunjwa ngayo kubonakala sengathi abasebenzisi be-Apple abasebenzisi abaningi bazofinyelela izigcawu eziningi zokuqukethwe ngaphambi kokuba ushintsho lwe-4K luqede ngempela.
Kwenzekani Okulandelayo?
Awukwazi ukulahla i-Apple. Ilalela amakhasimende ayo futhi inkampani iyazi kahle ukuthi kunesidingo esikhulayo sokusekelwa kwe-4K kumkhiqizo wayo we-TV. Futhi uyazi ukuthi i-Apple TV ibheka "kubi" uma iqhathaniswa namadivaysi okuncintisana athembisa ukwesekwa kwe-4K, noma ngabe lokho kusekelwa okungahambisani (bheka ngenhla).
I-Apple nayo icatshangwa ukuthi ilungiselela ukukhulisa i-push yayo ibe yikuhlinzekwa kokuqukethwe kokuqala kanye nokuhlinzeka uhla lwezinhlamvu "ze-skinny" zokuqukethwe. Lokhu kugxile kokuqukethwe kusho ukuthi inkampani ingase isheshe ibe sesikhundleni sokusekela ukusekelwa kwe-4K, ngokuxhaswa ekusekeleni imboni, ukwesekwa kwamazinga, futhi - ngokuphambene - isivinini esikhulu se-broadband.
Asikwazi ukuthi i-Apple izokhipha nini ukusekela i-4K ku-Apple TV. I-Bloomberg inqume ukuthi izinga lingase libone ukusekelwa okufakwe kumodeli omusha we-Apple TV, kodwa lezo zinkinga ezinkulu zidinga ukuxazululwa ngaphambi kokuthi lokhu kwenze ngempela umehluko kumakhasimende. Kodwa-ke, kunengqondo ukuthi uma i-Apple ikhulula ku-4K ingase idlulise ukuqhuma okudingekayo kokuqukethwe okungu-4K nakwamamukeli we-4K ahambelanayo.