Umbuzo: Ngingarekhoda yini i-DVD ku-Progressive Scan?
Impendulo: Amarekhoda eDVD akwenzeki ukurekhoda ngokuqhubekayo; ukuskena okuqhubekayo kuyindlela engasetshenziswa ngesikhathi sokudlala uma irekhodi le-DVD liqhubeka nokukhipha imiphumela. Nakuba amanye ama-DVD aqoshiwe anezimpendulo zengxenye yevidyo (ikakhulukazi eyenziwa yi-Philips), lezi zimpendulo azikho ukuthuthukiswa kokufakwayo.
Wonke ama-DVD alotshwe ku-480i standard uma usebenzisa i-DVD recorder.
Uma umdlali we-DVD noma umrekhoda edlala i-DVD, yi-processor yokuhlunga okuqhubekayo namathandabuli womugqa asetshenziselwa indlela yokudlala engaqondisa ukuthi ividiyo engu-480i erekhodiwe eDVD igcinwe kanjani kwithelevishini noma kwesikrini sokubukwa. Ukuguqulwa kwe-scan okuqhubekela phambili kungenziwa ngokusebenzisa i-DVD yokudlala noma nge-TV eqhubekayo, kodwa-ke, kuphumelela kakhulu ukuba umrekhoda we-DVD noma umdlali akwenze. Kulesi simo, noma kunjalo, umdlali we-DVD kanye nethelevishini noma iphrojekti kudingeka ihambisane nokuskena okuqhubekayo ukuze uyibonise.
Isizathu sokuthi ama-DVD wonke alotshwe kumgangatho we-480i yilokho i-DVD engayifunda ngabo bonke abadlali beDVD (njengama-scan asekudala angenawo amaphuzu askena) futhi aboniswe kuthelevishini ejwayelekile ye-analog. Ngisho noma ungabhala i-DVD ngo-480p noma ngaphezulu, i-DVD ngeke ikwazi ukudlala kumdlali we-DVD ongeyena oqhubekayo. Noma yikuphi ukuguqulwa kwe-upscale kwenziwa ohlangothini lokudlala. Ngokuyinhloko, umdlali we-DVD (noma umrekhoda - kumodi yokudlala) ifakwe ukuskena okuqhubekayo kuguqula i-480i kuya ku-480p ukuze kuboniswe kuthelevishini ebonakalayo ekhishwayo, uma ufuna ukwenza okuqhubekayo, ungakwenza lokho nge-double-line noma i-HD upscaler lokho kungaphakamisa ku-720p noma ku-1080i.
Ukubeka le nqubo yonke ngemibandela eyisisekelo, i-DVD oyenzayo ibhalwe ku-480i. Kodwa-ke, uma udlala i-DVD yakho ukuze ubuke kumbukiso wethelevishini noma wekhompiyutha, yindlela abacubungula ngayo i-DVD player, i-double line double, noma olunye uhlobo lweproscaling processor elikhomba ukuthi isithombe siboniswa kanjani esikrinini sakho. Wonke umrekhoda we-DVD angakwenza ukurekhoda i-VHS, i-Laserdisc, noma umthombo wamakhamera njengoba ifika, ividiyo engenayo kufanele ibe (uma kwenzeka nge-US isibonelo) umthombo we-NTSC ojwayelekile ophakathi. Lesi siginali sevidiyo esithintekayo sibhalwa kwi-DVD. I-DVD eqoshiwe ingadlalwa kwenye i-DVD player (kuye ngokuthi ifomethi yokurekhoda isetshenzisiwe - njenge-DVD-R, njll.). Uma ufisa ukubuka ukudlala kwe-DVD ngendlela ephakanyisiwe, ngokusebenzisa i-line kabili, noma ngabe i-DVD player kufanele ifakwe umkhiqizo oqhubekayo wokuskena noma i-double double line kufanele isetshenziswe.
Ekuphetheni, uma ubona umrekhodi we-DVD ekhangiswa njenge-DVD Recorder nge-Progressive Scan, lokho abakushoyo ukuthi i-DVD irekhodi inezinkampani zokudlala zokudlala okuqhubekayo, hhayi ukuthi izorekhoda ekuphenyweni okuqhubekayo.