Home » Featured » Tlhahiso ea Molaetsa / ea Video Ho feta IP ho hlahisa

Tlhahiso ea Molaetsa / ea Video Ho feta IP ho hlahisa


Tlhokomeliso

Ntho e 'ngoe le e' ngoe ho tloha lik'homphieutha tsa motho ho ea ho theknoloji ea thelevishene e tsoetse pele ka potlako lilemong tsa morao tjena, 'me ho joalo le ka lisebelisoa tsa li-audio le video Empa topology ea li-audio le video e sebelisoang sebakeng se fanoeng e 'nile ea e-ba teng ka lilemo tse mashome. Theknoloji ena, e itšetlehileng ka hardware e hahiloeng ka morero le hopling point, e loketse phetoho. Mekhoa e thehiloeng ho Internet protocol (IP) e fetola tsela eo lipontšo tsa li-audio le tsa video li fetisetsoang ka eona 'me li lokela ho kopanngoa le mocha ofe kapa ofe oa boitsebiso.

Moo o qalileng teng
Kemiso ea li-audio le video e qalile ka lithapo tsa marang-rang le li-routers tse fetotsoeng ka tsela e fetotsoeng boemong bo ka sehloohong, boemong ba ntlha-to-point. Lipontšo tsohle li ne li fetisetsoa sebakeng se bohareng moo mokhoa oa ho tsamaisa o ne o etsoa. Ha mekhoa e fetoha ho tloha ho analog ho ea ho digital, mokhoa ona oa motheo oa mokhoa oa ho tsamaisa o ile oa tšoareloa, esita le ka kenyelletso ea video ea AES, video ea SDI le SDI ka mohala o kenyelletsoeng. Ntho feela e ileng ea fetoloa e ne e le pontšo ea ho tsamaisoa, 'me nako le nako ha ho etsoa letšoao le lecha, lisebelisoa tsohle tsa ho khabisa le ho tsamaisa thepa li lokela ho nkeloa sebaka. Sena se ne se bolela mekhoa e theko e boima, e tloaelehileng e etsoang ke setsebi.

Tšepiso ea IP
Tsela ea IP ha e fetole feela router- e e felisa. Ka lipalangoang tsa IP, lesela la li-audio le livideo li tsamaisoa ho pholletsa le marang-rang eohle. Lekhotla lena le hahiloe ka thepa ea marang-rang-e-shelf (COTS) - thepa e tšoanang ea thepa e sebelisoang tsamaisong efe kapa efe ea khoebo ea khoebo. Ka tšebeliso ea lihlahisoa tsa COTS, bahlahisi ba sebelisa chelete ea ho etsa lipatlisiso le nts'etsopele ho latela setsi se seholo haholo sa ho kenya, ho e-na le ho ntshetsa pele marulelo a marang-rang a 'mino oa video / video, e leng ho khanna litšenyehelo ho bohle. Sena se boetse se lumella ho potlakisa ho thehoa ha theknoloji e ncha le lisebelisoa, tse bolelang ho ntlafatsa habonolo le ho theko e tlaase.

Ho feta moo, ho sebelisa theknoloji ea IP e teng e lumella bokhoni bo bocha ho kenyelletsoa ka potlako. International Organization for Standardization (ISO) le Institute of Electrical and Electronics Engineers (IEEE) li fana ka litekanyetso tse ikemetseng tsa ho hokahanya tsa IP tse sebelisoang ke marang-rang, kahoo mekhatlo ea li-audio le video e tšoana le Mokhatlo oa Motion Picture le Moenjiniere oa Thelevishene (SMPTE) le Mokhatlo oa Boenjiniere oa Litaba (AES) e ka lebisa tlhokomelo ea bona ho ho beha li-protocol e itseng.

Ho ikamahanya le ho romela IP
E 'ngoe ea lintho tse amehang ha u sebelisa ts'ebetso ea IP ho rarolla bothata ke ho sebelisana pakeng tsa lihlahisoa. Litlhoko tsena ke karolo e 'ngoe e lebisitsoeng ke Alliance ea IP Media Solutions (AIMS) consortium, e leng liteko tse lumellanang le lisebelisoa tse entsoeng ke litho tsa eona tsa 100, hammoho le ho amoheloa ka kakaretso SMPTE ST-2110 maemo a latelang. Basebedisi ba bangata ba ho qetela ba se ba ntse ba sebetsa ka tsela ea ho fetisetsa lipalangoang tsa IP le ho tsamaisa mekhoa ea bona, ba hlokomela phetoho e kholoanyane ka mehato e nyenyane ea maoto le litšenyehelo. E bile katleho e kholo.

Nakong e fetileng, ka mekhoa e tloaelehileng ea mekhoa, mokhoa oa ho qapa, oa ho kenya le oa ho rarolla mathata a hlokahalang o setse ka mokhoa o tšoanang bakeng sa bophelo bohle ba bophelo. Kajeno, litsamaiso tsa IP li hloka tsebo e ncha ka ho feletseng bakeng sa mesebetsi e ts'oanang, ho qala ka kutloisiso e feletseng ea li-protocol tsa IP le IP switching, hammoho le li-protocols tsa li-audio le video.

Tšehetso bakeng sa Mekhoa e mengata
Sebakeng sa kajeno sa mohala o mamelang, mehloli e fapa-fapaneng le lihlahisoa-ho kenyeletsa Dolby-Digital (AC-3), Dolby-E, Desecrate 5.1, Desecrate 2.0, lipuo tse ling le mananeo a hlalosang li-audio bakeng sa bokooa ba mahlo-khatello eohle ea khatiso ho phatlalatso hlahisa mekhoa ea litsebo tsa mohala. E 'ngoe le e' ngoe ea litšebeletso tsena e ka tsoa libakeng tse fapa-fapaneng kapa ea kenngoa mohlakoreng ka mong, 'me ho hlokahala hore e fetisetsoe ho ea sebakeng seo u eang ho sona ha u ntse u boloka ho nepahala ha foreimi le video e tšoanang. Lihlahisoa tsa livideo li ka fapana haholo, ho tloha ka tlhaloso e tloaelehileng ea lefa (SD) ho 4K HDR le ntho e 'ngoe le e' ngoe e pakeng tsa- ho kenyeletsa le litompe tse hatelitsoeng. Liphetoho tsena kaofela li ka kenngoa tharollo ea IP. Lisebelisoa tsa IP li lumella motho hore a tsamaise mofuta ofe kapa ofe o teng.

Hardware
Li-router tsa setso ke li-monolithic tse nang le thepa e entsoeng ka morero e atisang ho nka sebaka se ngata sa matla, matla le ho kenya liphahla. Sebaka se seng le se seng sa mohloli le se fihletsoeng sechabeng se lokela ho amana le router e bohareng, 'me ha mekhoa e mecha e hlahisoa kapa u hloka sebaka se eketsehileng, tharollo-ho fetola router-e atisa ho ba e theko e boima le e sa thabiseng.

Sebakeng sa tlhahlobo ea IP, mokhoa oa ho etsa lintho o ka atolosoa ka boithatelo, o lumella ho hōla le ho atolosa ntle le ho nka sebaka sa tsamaiso eohle. Ha u ntse u tšehetsa mekhoa e mecha, ha ho hlokahale hore u nkele sebaka sohle, feela kenya li-interfaces ka bohale.

Etsa ho fetoha
IP e ikemiselitse ho fetola lipalangoang le lipalangoang tsa likoloi lilemong tse hlano tse latelang. SDI e tla fetoleloa nako e telele ka SMPTE ST-2110, le SDI lebeletsoe ho ba NTSC e ncha (RS-170A). Ho fallela tsamaisong ea lipalangoang ea IP ho felisa tlhokahalo ea thepa e kholo, e theko e tlaase ebile e tšehetsa mefuta e mengata ea liforomo. Hape mohlomong ho molemo ho tsohle, ke tharollo e feto-fetohang e ntseng e hōla le theknoloji ea ho fetoha le litlhoko tsa mokhatlo.

Phetoho ena e hloka ho hlophisa le ho nahanisisa. Ho fallela libakeng tsa thepa ea lipalangoang tsa IP le mokhoa oa ho tsamaisa mekhoa ea boipheliso ha se tharollo e nepahetseng ho bohle, empa ke habohlokoa hore nako le nako u hlahlobe hore na khoebo ea hau e lokela ho etsa phetoho. E ka ba theko e boima, empa ho khoneha phetoho mosebetsing oa hau oa ho sebetsa, thepa ea thepa, le ntlafatso e ka fokotsa litšenyehelo 'me ea fana ka melemo e kholo nakong e tlang.

sebetsa le Adorama Merero ea Khoebo
Ha mokhatlo oa hau o ntse o nahana kapa o lokisetsa phetoho ea theknoloji ea IP, Adorama Merero ea Khoebo e ka ba molekane oa hau oa thekenoloji. Ho na le sehlopha se nang le phihlelo sa Tšebeletso ea Tšebeletso le baokameli ba likarabo tse inehetseng, mokhatlo oa hau o ka fumana tataiso ea litsebi litabeng tsa theknoloji, koetliso ea basebetsi, le thuso ea motho ka mong ho etsa liqeto mabapi le ho ntlafatsa thepa.

"Fumana ho eketsehileng ka hore na Adorama Merero ea Khoebo e ka thusa mokhatlo oa hau le ho fana ka lipuisano ntle ho tefo le setsebi sa www.adorama.com/corporate"


Tlhokomeliso

Makasine ea Beat e phatlalalitsoeng

Magazine e phatlalalitsoeng ea Beat is NAB e T'soantšang Bontša molekane oa mecha ea litaba 'me re koahela Broadcast Engineering, Radio & TV Technology bakeng sa Animation, Broadcasting, Picture Motion and Post Posting indasteri. Re koahela liketsahalo tsa indasteri le likopano tse kang BroadcastAsia, CCW, IBC, SIGGRAPH, Digital Asset Symposium le ho feta!

Lihlooho tsa morao-rao ke Magazine ea Broadcast (sheba tsohle)

G|translate Your license is inactive or expired, please subscribe again!