NTSC vs Pal - Wax walba oo ku saabsan NTSC iyo Pal

Dunida waxa ka buuxa heerarka is khilaafsan alaabta kasta iyo TV waa laga reebo lahayn. Ugu yaraan aan hadda haysano saddex kaliya heerarka TV ugu weyn dunida oo dhan: Pal (Phase isku bedbedelo Lines), NTSC (Standard Guddiga Television National) iyo SECAM (Séquentiel couleur à mémoire, Faransiis for "xig xiga Color la Memory"). Maqaalkani waxa uu arki doonaa waxa ay faraqa u dhexeeya, kumuunayaasha iyo NTSC.

Waa maxay NTSC iyo Pal

NTSC waa nidaamka analog TV waxaa inta badan loo isticmaalaa in North America. Bishii Maarso 1941, National Television Standard Guddiga ee United States soo saaray heer farsamo ee television-madow iyo caddaan. In 1950, Guddiga television midabka caadiga ah iyo waxaa loo bixiyey NTSC ka 1953. In caadiga ah NTSC, signalada waxaa la isugu gudbiyo ee 30 loox kasta labaad iyo 525 khadadka scan gaarka ah loox kasta.

Pal dambe horumariyo badan NTSC u television midabka bilowga. Pal waxaa loogu talagalay in la jaan qaada inta jeer ee sawirka Yurub ee 50 beeraha halkii labaad (50 Hertz), iyo sidoo kale in ay ka fogaadaan dhaca dhowr ah oo NTSC, oo ay ku jiraan midab midabka wareegaayo ku hoos jira xaalad gudbinta saboolka ah. SECAM sidan ka dib horumariyo. In caadiga ah Pal, 25 looxyada waa la kala qaado labaad kasta, oo loox kasta waa la dhisay by 625 khadadka scan shaqsi.

Sidaas waxa faraqa u dhexeeya, kumuunayaasha iyo NTSC? Faraqa ugu weyn tahay heerka jir iyo xallinta. Heerka NTSC isticmaalaa 30 fps, halka heesaaga 25 fps. Sidaa darteed, NTSC in aragtida bixisaa mooshin wax yar ka sii macaan yahay, kumuunayaasha. Wixii xallinta,

Pal DVD ama NTSC DVD

In kasta oo ay kala duwan ee Pal iyo NTSC yar yar yihiin, waxaa jira aan ku haboonayn weyn u DVD cajalladaha. The filimada ama videos lagu kaydin karaa on DVD in mid ka mid ah laba qaraarada: 720 x 576 pixels (Pal DVDs), ama 720 x 480 pixels (NTSC DVDs), iyo iyadoo heerarka jir kala duwan sida 24, 25, iyo 30 fps. DVD ayaa akhriyo macluumaadka ku saabsan disc iyo qaabab waxaa haboon in ay soo bandhigaan labada Pal ama NTSC TV set DVD. DVD-Pal leeyihiin faa'iido ah kalifaya in ka badan DVDs NTSC sababtoo ah Pal DVD ayaa pixels weyn ee qaraarka (720x576 vs 720x480).

Guud ahaan, DVD ciyaaryahan NTSC ciyaari karaan oo keliya DVD cajalladaha NTSC. Laakiin waxaa kale oo jira ciyaartoyda DVD oo taageera nidaamka television badan, oo ay ku jiraan Pal, NTSC iyo SECAM. Dooro DVD ah Pal midig ama NTSC DVD hor meel aad si, ama isticmaal weyn video Converter si loogu badalo DVD Pal in NTSC DVD , haddii loo baahdo.

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Tusaale ahaan, dhammaan DVD-ka Europe ee guud yimaadaan qaab iyo gobolka 2 ama 0. Pal Haddii aad rabto in aad iyaga u ciyaaro United States (gobolka 1), waxaad u baahan tahay in meesha laga saaro xeerka gobolka iyo waxa la ciyaaro ciyaaryahan DVD socon (taageertaa NTSC caadiga ah halkii ay Pal.)

Pal iyo NTSC Wadamada

Fiiri Pal iyo map NTSC u hayo fikirka guud ee ay qaybinta adduunka.

Hadda hoose waa liiska wadamada isticmaalaya Pal, NTSC iyo SECAM. Haddii aad rabto in aad soo iibsato movie DVD ah, tixraac heerka TV aad dalka isticmaalaa.