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Kristijan1 · 30.03.2014., 23:31

Prebaci u PAL 25 fps and 720x576

NTSC delivers a frame rate of 30 fps at an aspect ratio of 720x480, and is used in North America, Japan and South Korea. PAL is a different video standard that is incompatible with NTSC; it uses a fame rate of 25 fps and 720x576 aspect ratio, and is used in most of Europe, Australia and large parts of Africa and Asia. The differences between NTSC and PAL are the reason why some DVDs or VHS tapes from Europe may not play in the United States and vice versa. Most European DVD players can read NTSC and most PAL TVs can display NTSC video. But NTSC DVD players usually cannot read PAL.

PAL vs. NTSC

PAL usually has 576 visible lines compared with 480 lines with NTSC, meaning that PAL has a 20% higher resolution. Both PAL and NTSC have a higher frame rate than film, 24 frames per second, offering flicker-free motion. Most TV output for PAL and NTSC use interlaced frames meaning that even lines update on one frame and odd lines update on the next frame. Interlacing frames gives a smoother motion with half the frame rate, the downside is with scene changes. NTSC is used with a fps of 60i or 30p whereas PAL generally uses 50i or 25p; both use a high enough frame rate to give the illusion of fluid motion. This is due to the fact that NTSC is generally used in countries with a Utility frequency of 60 Hz and PAL in countries with 50 Hz, although there are many exceptions. PAL has a closer frame rate to that of film and is less likely to suffer from issues caused during frame rate conversion. Artefacts caused by frame rate conversion required when video has been recorded at the wrong rate for the display can be severe.

NTSC receivers have a tint control to perform colour correction manually. If this is not adjusted correctly, the colours may be faulty. The PAL standard automatically cancels hue errors by phase reversal, so a tint control is unnecessary. Chrominance phase errors in the PAL system are cancelled out using a 1H delay line resulting in lower saturation, which is much less noticeable to the eye than NTSC hue errors.

30.03.2014., 23:31	#11
Kristijan1 Premium Moj komp Datum registracije: Jun 2006 Lokacija: Čepin Postovi: 1,503	Prebaci u PAL 25 fps and 720x576 NTSC delivers a frame rate of 30 fps at an aspect ratio of 720x480, and is used in North America, Japan and South Korea. PAL is a different video standard that is incompatible with NTSC; it uses a fame rate of 25 fps and 720x576 aspect ratio, and is used in most of Europe, Australia and large parts of Africa and Asia. The differences between NTSC and PAL are the reason why some DVDs or VHS tapes from Europe may not play in the United States and vice versa. Most European DVD players can read NTSC and most PAL TVs can display NTSC video. But NTSC DVD players usually cannot read PAL. PAL vs. NTSC PAL usually has 576 visible lines compared with 480 lines with NTSC, meaning that PAL has a 20% higher resolution. Both PAL and NTSC have a higher frame rate than film, 24 frames per second, offering flicker-free motion. Most TV output for PAL and NTSC use interlaced frames meaning that even lines update on one frame and odd lines update on the next frame. Interlacing frames gives a smoother motion with half the frame rate, the downside is with scene changes. NTSC is used with a fps of 60i or 30p whereas PAL generally uses 50i or 25p; both use a high enough frame rate to give the illusion of fluid motion. This is due to the fact that NTSC is generally used in countries with a Utility frequency of 60 Hz and PAL in countries with 50 Hz, although there are many exceptions. PAL has a closer frame rate to that of film and is less likely to suffer from issues caused during frame rate conversion. Artefacts caused by frame rate conversion required when video has been recorded at the wrong rate for the display can be severe. NTSC receivers have a tint control to perform colour correction manually. If this is not adjusted correctly, the colours may be faulty. The PAL standard automatically cancels hue errors by phase reversal, so a tint control is unnecessary. Chrominance phase errors in the PAL system are cancelled out using a 1H delay line resulting in lower saturation, which is much less noticeable to the eye than NTSC hue errors.