Tsarin Sarrafa Sigina a cikin Sabbin Talabijin
Ci gaban talabijin na zamani ba wai kawai yana bayyana a cikin girman allo mai siriri ko ƙuduri mafi girma ba. Bayan hotuna masu kaifi da launuka masu haske akwai jerin tsare-tsare masu rikitarwa da ake kira sarrafa sigina. Wannan tsarin yana ƙayyade yadda ake mayar da sigina daga watsa shirye-shirye, intanet, ko na'urori na waje zuwa hotuna da sauti masu daɗi. Sabbin talabijin - ko LED, QLED, OLED, ko Mini-LED - sun dogara ne akan na'urori masu sarrafa hotuna da sauti masu inganci fiye da tsararraki na baya don tabbatar da ingantaccen ingancin kallo a cikin yanayi daban-daban.
1. Tushen Sigina akan Talabijin na Zamani
Siginar da talabijin na yau ke karɓa sun fito ne daga majiyoyi daban-daban, ciki har da:
1. Watsa shirye-shiryen dijital na ƙasa (DVB-T2 ko wasu ƙa'idodi a kowace ƙasa), wanda ke maye gurbin watsa shirye-shiryen analog.
2. Siginar tauraron dan adam da kebul yawanci suna amfani da wasu gyare-gyare da matsi.
3. Yaɗa labarai ta intanet, misali YouTube, Netflix, ko ayyukan IPTV.
4. Na'urorin waje ta hanyar HDMI kamar na'urorin wasan bidiyo, na'urorin Blu-ray, da akwatunan set-top.
5. Yin madubi da kuma yin fim daga wayar hannu ko kwamfutar tafi-da-gidanka.
Kowace tushe tana da halaye daban-daban—daga ƙuduri, ƙimar firam, ƙimar bitrate, zuwa tsarin sauti. Saboda haka, talabijin tana buƙatar tsarin da zai iya daidaitawa, sarrafawa, da kuma nuna su duka akai-akai.
2. Matakin Liyafa da Hana Haihuwa
Idan siginar ta fito ne daga watsa shirye-shiryen ƙasa, tauraron ɗan adam, ko kebul, talabijin ɗin zai bi matakan farko:
– Mai gyarawa: yana zaɓar takamaiman tasha ko mita.
– Demodulator: yana fitar da bayanai na dijital daga raƙuman jigilar kaya bisa ga dabarun daidaitawa kamar QAM ko OFDM.
– Gyaran Kuskure: yana gyara kurakuran bayanai da tsangwama ta sigina, yanayi, ko tsangwama ta haifar. Wannan yana da mahimmanci don hana nunin ya lalace (toshewa) ko sauti mai kaifi.
A cikin sabbin talabijin, wannan bangaren ya zama mai saurin amsawa da sauri, don haka sauyawar tashoshi yana jin gajeru kuma karɓar sigina ya fi kwanciyar hankali.
3. Rage Matsi da Fahimtar Abubuwan da ke Ciki
An matse yawancin abubuwan da ke cikin zamani don watsawa cikin inganci. Talabijin suna buƙatar amfani da na'urorin tantance bayanai na hardware don fassara abubuwan da ke ciki cikin inganci da sauri. Tsarin da aka saba amfani da shi sun haɗa da:
– H.264/AVC don watsa shirye-shiryen HD da abubuwan da ke yawo da yawa.
– H.265/HEVC don 4K da wasu shirye-shirye/watsa shirye-shirye na zamani.
– AV1 yana ƙara samun karɓuwa a ayyukan yaɗa labarai saboda ingancinsa.
– VP9 wanda galibi ana amfani da shi akan wasu dandamalin bidiyo.
A ɓangaren sauti, na'urar tantancewa na iya ƙunsar ƙa'idodi kamar AAC, Dolby Digital, Dolby Digital Plus, har ma da Dolby Atmos a talabijin masu matsakaicin zango da manyan tashoshi.
4. Sarrafa Hoto: "Kwakwalwa" na Sabuwar Talabijin
Da zarar an fassara siginar bidiyo, mataki na gaba shine sarrafa hotuna. Nan ne sabbin talabijin suka yi fice, domin suna da na'urori masu sarrafa hotuna waɗanda ke gudanar da algorithms da yawa a lokaci guda, gami da:
a. Haɓaka da kuma Babban ƙuduri
Ba duk abubuwan da ke cikin bidiyo ba ne ake samu a cikin 4K ko 8K. Saboda haka, talabijin suna yin haɓaka: ƙara ƙudurin abun ciki (misali, daga 1080p zuwa 4K) yayin da suke kiyaye cikakkun bayanai. Sabuwar fasahar tana amfani da haɓaka AI, samfurin koyon injin da ke gane alamu (gefuna, laushi, fuskoki) don samar da hotuna masu santsi da kaifi ba tare da ƙara hayaniya mai yawa ba.
b. Rage Hayaniya da Cire Kayayyaki
Matsewar bidiyo sau da yawa yana gabatar da kayan tarihi kamar ƙananan tubalan, mannewa, ko "tururuwa" a wurare masu duhu. Tsarin sarrafa sigina na zamani yana amfani da:
- Rage hayaniyar lokaci (bisa ga kwatantawa tsakanin firam).
- Rage hayaniyar sarari (bisa ga bincike a cikin firam ɗaya).
– Cire toshewa da kuma cire ringing domin rage tasirin matsawa mai tsanani.
Mabuɗin shine a danne hayaniya ba tare da rasa cikakkun bayanai na asali ba.
c. Sarrafa Motsi da Haɗa Tsarin
Motsi mai sauri na iya bayyana kamar ba shi da haske ko kuma yana da ban tsoro. Sabbin talabijin suna aiwatar da su:
- Kimanta motsi da diyya don sassauta motsi.
- Haɗa firam (misali daga 60 Hz zuwa 120 Hz) ta hanyar ƙara firam ɗin "na wucin gadi".
– Shigar da firam ɗin baƙi ko makamancin haka don ƙara kaifin motsi.
Duk da haka, idan ya yi tsauri sosai, sakamakon zai iya zama tasirin "sabulun opera" (yana kama da bidiyon wasan kwaikwayo na sabulu ko bidiyon mai son). Saboda haka, yawanci akwai zaɓi na matakan sarrafa motsi.
d. Sarrafa HDR da Taswirar Sauti
Abubuwan HDR (High Dynamic Range) kamar HDR10, HDR10+, da Dolby Vision suna ba da faffadan kewayon haske da duhu, mafi kyawun inuwa, da ƙarin haske mai haske. Sannan talabijin ɗin tana yin taswirar sauti don daidaita abubuwan HDR da ƙarfin panel ɗin. Misali, idan panel ɗin bai iya isa ga wani haske mai kyau ba, tsarin zai "sake tsara" abubuwan da suka fi haske don tabbatar da cewa har yanzu suna da cikakken bayani, maimakon kawai rufe farin.
A cikin sabbin talabijin, taswirar sauti na iya zama:
- Tsaye (bisa ga metadata gama gari),
- Dynamic (tsarin-da-firam ko yanayi-da-fage),
- har ma da taswirar sautin AI wanda ke la'akari da nau'in abun ciki da yanayin haske na ɗakin.
e. Sarrafa Launi da Taswirar Gamut
Talabijin na zamani suna tallafawa wurare masu faɗi na launuka (misali, DCI-P3 ko ma kusa da Rec.2020). Tsarin sarrafa sigina zai:
- Sarrafa ma'aunin farin,
- gyara manne mai launi,
- yi taswirar gamut don launuka su kasance daidai koda kuwa tushen abubuwan sun bambanta.
Manufar ba wai kawai "harba" launuka ba ce, har ma da launuka masu daidaito da na halitta, musamman ga abubuwan da ke cikin fim.
5. Sarrafa Sauti: Daga Sigina zuwa Sautin Nutsewa
Haka kuma yana da muhimmanci wajen sarrafa sauti. Sabbin talabijin galibi suna amfani da su:
- Kewaya ta kama-da-wane don ba da ra'ayi na sauti mai faɗi duk da cewa lasifika suna da iyaka.
- Inganta tattaunawa don tattaunawa mai haske.
- Daidaita ƙarar ta atomatik don daidaita ƙarar yayin tallace-tallace ko canje-canje a yanayi.
- Sauti mai wucewa/eARC don a iya aika ingantattun tsarin sauti zuwa sandar sauti ko mai karɓar AV ba tare da lalacewa mai yawa ba.
Wasu samfura ma suna amfani da makirufo na ciki don yin sauƙin daidaita sauti, suna daidaita yanayin sautin zuwa ɗakin.
6. Matsayin AI da Na'urori Masu auna sigina a cikin Sabbin Talabijin
Talabijin na zamani suna ƙara "wayo" saboda suna amfani da na'urori masu auna firikwensin da kuma AI wajen sarrafa sigina, misali:
- Firikwensin haske don daidaita hasken allo ta atomatik bisa ga yanayin ɗaki.
- Gano yanayin AI don gane ko wurin fim ne, wasanni, zane-zane, ko wasa, sannan a yi amfani da bayanin sarrafa da ya ga ya fi dacewa.
- Sautin daidaitawa na AI don daidaita ribar bass ko tattaunawa dangane da nau'in abun ciki.
Duk da cewa wannan zai iya zama kamar abin da ya dace, har yanzu ana shawartar masu amfani da su gwada yanayin "Fim" ko "Cinema" idan suna son nunin da ya fi dacewa da ƙa'idodin masu ƙirƙira.
7. Latency da Yanayin Wasan
Ga 'yan wasa, jinkirin shigarwa muhimmin bangare ne na sarrafa sigina. Yawancin hanyoyin sarrafa hotuna suna ƙara jinkiri. Sabbin talabijin suna magance wannan ta hanyar:
- Yanayin Wasan wanda ke kashe aiki mai nauyi (kamar haɗa firam).
- Tallafin ALLM (Yanayin Latency na atomatik) don TV ta shiga yanayin latency ta atomatik lokacin da aka gano na'urar wasan bidiyo.
- VRR (Variable Refresh Rate) don rage tsagewa lokacin da ƙimar firam ɗin ta canza.
- Tallafin 120 Hz akan HDMI 2.1 don motsi mai santsi.
Da wannan haɗin, talabijin ɗin zai iya kula da ingancin gani mai kyau ba tare da yin watsi da martanin sarrafawa ba.
8. Kesimpulan
Tsarin sarrafa siginar a cikin sabbin talabijin yana haɗuwa ne da fasahar karɓar sigina, ƙirƙirar bayanai, sarrafa hotuna, da fasahar sarrafa sauti waɗanda ke aiki tare. Daga rage siginar watsa shirye-shirye zuwa haɓaka AI da taswirar sautunan HDR, kowane mataki yana ba da gudummawa ga ƙwarewar kallo mai kaifi, santsi, da nutsewa. Ba abin mamaki ba ne cewa talabijin guda biyu masu ƙuduri iri ɗaya na iya samar da sakamako mai kyau daban-daban - saboda "injiniyoyi" sarrafa sigina a cikinsu suma sun bambanta. A nan gaba, sarrafa sigina zai ƙara dogaro da AI, na'urori masu auna sigina, da haɗin kai da yanayin gida mai wayo, wanda ke sa talabijin ba wai kawai allon nuni ba ne, har ma da cibiyoyin nishaɗi waɗanda ke ƙara daidaitawa da buƙatun mai amfani.
