Zovuta zamakono ndi zochepa zochepa zimatanthauza 4K komabe sizowonjezereka
Apple TV 4 sichirikiza TV 4K Ultra HD. Izi zinali bwino pamene chipangizochi chinayambika mu 2015, koma zinthu zikupitirirabe. Nchifukwa chiyani Apple yachedwetsa kuyambitsidwa kwa thandizo la 4K, 4K, nchiyani chomwe chiripo ndipo tingayembekezere chiyani?
Mamilioni a nyumba ali kale ndi 4K Ultra HD TV, koma Apple TV 4 sichigwirizana ndi muyezo. Chabwino, pamene chitsanzo chinayambitsidwa panali zogwiritsa ntchito zamakono, zogwirizana, zokhudzana ndi zofunikira komanso zokhudzana ndi zovuta zomwe zimatanthauza ngakhale apulo atapereka thandizo la 4K, sakanatha kupereka makasitomala mwayi waukulu wophunzira.
Kodi 4K ndi chiyani?
Masewu a 4K (omwe amadziwikanso kuti ultra HD) adzakhala m'malo mwa HD TV. Ambiri ambiri a ku US amalowetsa ma TV awo zaka zisanu ndi ziwiri, kotero kuti kuyambiranso kumatenga nthawi.
Anthu omwe amagwiritsa ntchito ma TV 4K omwe ali otsika kwambiri ali ndi zojambula zokwana 3,840 zazikulu ndi pixel 2,160 zapamwamba. Iwo akhoza kupereka khalidwe la zithunzi zomwe ziri pafupi bwino kanayi kusiyana ndi zomwe mumapeza kuchokera muyezo wa HD, malinga ngati zomwe zilipo zikugwirizana ndi chigamulochi (chomwe, pansipa).
Amene amagwiritsa ntchito 4K kuyamikira chifukwa cha zithunzi zake zomveka bwino, ndi zithunzi zapamwamba kwambiri za chithunzi. Komabe, kufufuza kwaposachedwapa kwa Juniper kudzinenera kuti 15 peresenti ya mabanja 116,4 miliyoni a US adzakhala ndi TV 4K kumapeto kwa 2016.
"Zitenga zaka zingapo kuti mabanja ambiri a TV asakhale okonzeka 4K UHD," anatero ovum analyzer, Oleksiy Danilin.
4K Kulowera kwa UHT kudzafika 25.5% pa nyumba za TV padziko lonse pofika 2020 akulosera. Strategic Analytics ikugwirizana ndi izi.
Chowonadi chikuwoneka kuti ndi Apple kuti athandize chithandizo cha 4K mu Apple TV 4, chikadapempha ochepa chabe owonerera TV.
Izi zitha kukhala ndi zotsatira zovuta kuti kupanga mankhwalawa asakuwoneke kosangalatsa kwa makasitomala omwe angakhale alibe kukhazikitsa 4K, popeza sangathe kugwiritsa ntchito mbali yake yoonekera,
Koma Zina Zowonjezera Mtsinje 4K?
Amazon, Roku , ndi Nvidia onse amapereka njira zothandizana ndi apulogalamu ya TV ndipo amathandizira TV 4K, koma osati popanda kugonjera - chifukwa mzere wa 4K sunasinthike.
Ganizirani za VHS motsutsana ndi Betamax, kapena Blu-ray ndi HD DVD.
Zingadabwe kuona kuti pa 4K, ndondomeko zamakono zogulitsa sizinagwirizane mpaka CES 2016 - miyezi itatha pambuyo pa kukhazikitsidwa kwa Apple TV 4.
Mpaka apo, opanga osiyanawo amatumizidwa makanema a TV omwe ali ndi ntchito zosiyana zosiyana siyana za makina othandizira a 4K TV, HDR (High Dynamic Range). HDR imakuthandizani kuti muzisangalala ndi chithunzi chabwinoko kuchokera kutali.
Izi zinali ndi zotsatira zosasangalatsa pambali pazochitika za osuta. Izi zikutanthawuza kutsegula m'mimba, kutanthauza kuti kusindikiza mabokosi kumagwira ntchito bwino ndi ma TV ena kuposa momwe iwo ankachitira ndi ena.
Zikuphatikizaponso chifukwa chake Ministry of Internal Affairs and Communications mu 2016 inachenjeza ogulitsa kuti ma TV 4K omwe agulitsidwa kumeneko kwa zaka zambiri angafune "ovomerezeka apadera" kuti adziwe zikwangwani 4K pamene akuyamba mu 2018.
Kodi TV ya 4K ndi liti Si TV ya 4K?
Chinthu chachikulu chomwe anthu ambiri omwe amaonera TV sakuchidziwa kuti akukhala mu HDMI - zoyenera kugwiritsira ntchito televizioni ku bokosi la pamwamba, masewera a masewera kapena bolodi.
Kuti muzisangalala ndi 4K muwonetsetse TV yanu ndi bokosi lanu liyenera kuthandizira latsopano (ish) HDMI 2.0 yoyenera - ma TV ambiri omwe amagulitsidwa ngati ma TV 4K kwenikweni samadzitama pawindo la HDMI 2.0. Apple TV ili ndi doko la HDMI 1.4, kotero ngakhale bokosi lopatsidwa 4K silikhoza kuyendetsa pa TV.
Njira imodzi yomwe ikugwiritsidwa ntchito kupeza zinthu monga khalidwe la 4K kuchokera ku magwero omwe sali a 4K ndikumwamba kwa chithunzichi. Ma TV ena 4K atsopano amagwiritsira ntchito tekinolojekitiyi kuti zikhale zogwirizana ndi zisankho zazikulu. Mukugwiritsa ntchito, izi zikutanthauza kuti ngakhale pamene TV TV ikukhamukira mavidiyo 1,080p zomwe mumawona pazenera zikuwonekera kwambiri.
Kusokoneza 4K Mavuto
Mapulogalamu a 4K akusindikizidwa mu ma H.265. Vuto ndi mtundu umenewu ndikuti sikunakwanire ngati H.264 imalowetsa, choncho khalidwe la chithunzi lingakhale losagwirizana. Apple sakufuna izi.
N'kofunikanso kuganiza kuti ngati Apple TV ikuthandizira 4K iyenera kukhala wothandizira 4K kudzera mu iTunes - kuchita zimenezi kungayikitse mavuto ambiri pazomwe akupereka.
Tikudziwa kuti Apple ikuwonjezera chitukuko cha CDN (Content Delivery Network) ndi malo atsopano padziko lonse, koma vuto silili ndalama zokha zogwiritsa ntchito ma seva, koma ndalama zina zowonjezera kuti zitsimikizidwe zapamwamba zokhudzana ndi ubwino ndi utumiki zofalitsa zokwanira kudzera mwa opereka mautumiki ambiri.
Mawotchi a broadband ndi vuto lina. Osati onse operekera mautumiki a broadband amatha kugwiritsa ntchito zida zogwiritsira ntchito, koma omwe amachititsa kuchita zimenezi molimba mtima. Izi zikutanthawuza kuti mafilimu omwe amafuna kuti athandizidwe mu 4K ayenera kudziwa momwe akuyandikana kwambiri ndi malire awo. Osati izi zokha, koma kutuluka kwa 4K kumafuna kuchuluka kwa 20Mbps , omwe ambiri ogwiritsa ntchito intaneti alibe .
Ngakhalenso pambuyo pa ma 4K mitsinje yatsimikiziridwa pa gwero, iwo adzalinso osowa maulendo awiri kapena atatu omwe mukufunikira lero kuti muwone chakudya cha HD 1080p. Zinthu zasinthidwa ngati mawindo a broadband akuwonjezeka.
Kodi Zamkatimu zili kuti?
Mwina chilungamo chachikulu cha apulogalamu ya Apple TV ya 4K chithandizo ndi kusowa kwa 4K zokhutira - pali mndandanda wabwino pano .
Mukhoza kupeza 4K zokhazikika pa Netflix, Amazon, ndi Sony, ndi makanema akuluakulu monga BBC akhala akuyesera pang'ono, koma pakali pano pafupifupi mafilimu omwe mumayang'ana amagawidwa mu 1,080p HD, osati 4K.
Mukhoza kunena kuti mwa kuika chithandizo cha 4K mkati mwa Macs, iPhones, ndi iPads, Apple ikugwira ntchito kuti idzaze phokosoli - ilo limapereka Final Cut X kuti isinthe izi pulogalamu zofalitsira. Kujambula mafilimu monga Kubwezeretsa akuwonetsedwa mu 4K, koma mpaka ogula ena amagwiritsira ntchito makanema ovomerezeka a 4K kuti apange zinthu zowonjezera zikhale zochepa.
Otsatsa malonda atayamba kupereka zowonjezera 4K mavoti ochulukirapo zinthu zikhoza kukulirakulira, chifukwa izi zidzalimbikitsa olemba zinthu kuti apange zakuthupi 4K. Otsatsa malonda ayamba kukwera muyeso: Kumwamba ku UK posachedwa kunayambitsa mafilimu a Ultra HD, zosangalatsa, ndi masewera. Kugwiritsa ntchito makasitomala othandizira akufunikira kukhazikitsidwa kwa TV 4K ndi Sky Q Silver yokhala pamwamba-bokosi, omwe angathe kugwira 4K zomwe zili. Pali chiyembekezo kuti anthu ena a ku UK adzayambitsa mautumiki awo 4K kuti agwirizane ndi Sky - Virgin Media posachedwapa anayamba kukambirana zolinga zake.
Msika umasinthidwanso. Kampani ya makolo a ESPN, Walt Disney, posachedwa inafotokoza kuchepa kwa milioni 7 kwa olembetsa pakati pa Q4 2013 ndi Q4 2015, kufika pa milioni 92. Kuwonongedwa kwa makasitomala akuyembekezeranso kuona ena mamiliyoni asanu akusiya utumiki wawo kumapeto kwa chaka, zomwe zingalimbikitse Walt Disney kuti apereke zinthu zambiri zomwe zingakwanitse.
Mwa kuyankhula kwina, momwe zinthu zikugwirira ntchito zikuwoneka kuti ogwiritsa ntchito a TV a Apple amakhala akupeza zambiri zowonjezera zokhutira zisanafikeko kusanthanso kwa 4K.
Kodi N'chiyani Chimachitika Patsogolo?
Inu simungakhoze konse kumukana Apple. Amamvetsera makasitomala awo ndi kampani ikudziwa bwino kuti pali kufunika kwa thandizo la 4K muzomwe amagwiritsa ntchito pa TV. Amadziwanso kuti Apple TV ikuwoneka "yoipa" poyerekeza ndi zipangizo zotsutsana zomwe zimalonjeza chithandizo cha 4K, ngakhale kuti chithandizochi sichikugwirizana (onani pamwambapa).
Apple akuganiziranso kuti akukonzekera kukwezera kukankha kwake muzoyambirira zomwe zilipo komanso kupereka zinyama zambirimbiri zomwe zilipo. Kuika patsogolo pazomwe zilipo kumatanthauza kuti posachedwapa kampani ikhoza kukhala ndi mwayi wothandizira 4K chithandizo, malinga ndi chithandizo cha mafakitale, chithandizo chamagwiridwe, ndi - makamaka - kuthamanga kwapagetsi.
Sitikudziwa ngati Apple adzalumphira kuti athandize 4K mu Apple TV. Bloomberg anaganiza kuti muyezo akhoza kuona chithandizo chomwe chinayambitsidwa muwonekedwe latsopano la Apple TV, koma mavuto aakuluwa akuyenera kuthetsedwa izi zisanapangitse kusiyana kwa makasitomala. Komabe, zitsimikizirika kuti kamodzi Apple atapereka pa 4K ikhoza kuyambitsa kutayika pakufunika kwa 4K zokwanira ndi ovomerezeka a 4K omwe ali ndi televizioni.