NTSC vs PAL - katoa e pā ana ki NTSC me PAL

Ko tonu i te paerewa taupatupatu mo nga hua te ao, me te TV kahore he okotahi. I te iti rawa i teie nei to tatou toru anake paerewa matua TV i roto i te ao: PAL (Wāhanga tauutuutu Raina), NTSC (National Komiti Whakaata Paerewa) me SECAM (Séquentiel couleur à mémoire, French mō "Tae Raupapa ki te Pūmahara"). Ka kite i tēnei tuhinga he aha te rerekētanga i waenga i PAL me NTSC.

He aha te NTSC me PAL

NTSC Ko te pūnaha pouaka whakaata tairitenga e te nuinga whakamahia i roto i te Amerika Te Tai Tokerau. I roto i te Maehe 1941, i whakaputaina i te Whakaata Komiti Paerewa National o United States i te paerewa hangarau mō te pouaka whakaata pango-a-ma. I te tau 1950, i te Komiti paerewa tae pouaka, a huaina iho e NTSC i 1953. I roto i te paerewa NTSC, kua tuku tohu i roto i te 30 papa ia te rua, me te 525 rārangi scan takitahi mō ia anga.

Kei te muri whakawhanakehia PAL atu NTSC mō te pouaka whakaata tae i te timatanga. Hangaia PAL ki te kia hototahi ki te auautanga pikitia Pākehā o mara 50 ia te rua (50 hertz), me te ki te karo e rave rahi drawbacks o NTSC, tae tae reo neke raro i ngā tikanga tuku rawakore. SECAM whakawhanakehia te kupu i muri mai. I roto i te paerewa PAL, e tuku 25 papa ia tuarua, me te papa kotahi whakaturia e 625 rārangi scan takitahi.

Na he aha te rerekētanga i waenga i PAL me NTSC? Ko te rerekētanga matua he auau anga me taumira. Ka whakamahia e te paerewa NTSC 30 fps, i PAL 25 fps. Na reira, NTSC roto i te ariā whakarato nekehanga paku Maeneene atu PAL. No te taumira,

PAL DVD NTSC DVD ranei

Ahakoa he iti te rerekētanga o te PAL me NTSC, i reira e te oti◊ao nui mō kōpae DVD. Ka taea te penapena te teata ataata ranei i runga i te DVD i roto i te kotahi o rua fakapapau: 720 x 576 pika (PAL DVD), ranei 720 x 480 pika (NTSC DVD), a ki te ngā reiti anga rite 24, 25, me te 30 fps. Ko te kaitākaro DVD pānui te raraunga i runga i kōpae DVD me ngā hōputu reira tika ki te tapaea runga rānei PAL NTSC TV huinga ranei. PAL DVD i te painga mālohi mo NTSC DVD no te mea kua pika rahi o te taumira (720x576 vs 720x480) PAL DVD.

Ko te tikanga, ka taea e NTSC kaitākaro DVD anake tākaro kōpae DVD NTSC. Ko reira te hunga ano kaitākaro DVD e tautoko pūnaha pouaka maha, tae atu ki PAL, NTSC me te SECAM. Kōwhiria te DVD PAL tika NTSC DVD i te aroaro o tuu i to outou tikanga, te whakamahi i te nui ranei kaitahuri ataata ki te tahuri DVD PAL ki NTSC DVD , ki te tika.

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No te tauira, DVD katoa i Europa i roto i te whānui mai i te hōputu PAL me rohe 2 0. ranei Ki te hiahia tākaro ratou i roto i te United States (rohe 1), e hiahia ana koe ki te tango i te waehere rohe me te tākaro i te reira ki te kaitākaro DVD hototahi koe (tautoko NTSC paerewa, nui atu i PAL).

Whenua PAL a NTSC

Tirohia te te PAL me NTSC mahere mo te ariā whānui o ratou tohatoha i roto i te ao nei.

Na i raro ko te rārangi o whenua te whakamahi i PAL, NTSC me SECAM. Ki te hiahia koe ki te hoko i tetahi kiriata DVD, tirohia ki te paerewa TV whakamahia e koe whenua.