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For viewing native PAL or SECAM material (such as European television series and some European movies) on NTSC equipment, a standards conversion has to take place. There are basically two ways to accomplish this: The framerate can be slowed from 25 to 23.976 frames per second (a slowdown of about 4%) to subsequently apply 3:2 pulldown .
When transferred to NTSC television, the rate is effectively slowed to 23.976 FPS (24×1000÷1001 to be exact), and when transferred to PAL or SECAM it is sped up to 25 FPS. 35 mm movie cameras use a standard exposure rate of 24 FPS, though many cameras offer rates of 23.976 FPS for NTSC television and 25 FPS for PAL/SECAM.
When operating in this mode most of them do not output a true (625/50) PAL signal, but rather a hybrid consisting of the original NTSC line standard (525/60), with colour converted to PAL 4.43 MHz (instead of 3.58 as with NTSC and South American PAL variants and with the PAL-specific phase alternation of colour difference signal between the ...
A video standards converter is a video device that converts NTSC to PAL and/or PAL to NTSC. [1] The PAL TV signals may be transcoded to or from SECAM. Video standards converters are primarily used so television shows can be viewed in nations with different video standards. With the use of high-definition television, new digital video standards ...
NTSC 4.43 is a pseudo-system that transmits a NTSC color subcarrier of 4.43 MHz instead of 3.58 MHz [49] The resulting output is only viewable by TVs that support the resulting pseudo-system (such as most PAL TVs). [50] Using a native NTSC TV to decode the signal yields no color, while using an incompatible PAL TV to decode the system yields ...
Use of RSC bypasses the generation of the artefacts that would be introduced in a normal NTSC-to-PAL conversion, and actually reverses the early standards conversion method used to create the NTSC copies. RSC is the result of reverse engineering the method of conversion inherent in the old traditional BBC PAL to NTSC converter.
NTSC and PAL image sizes are smallest, with a width of 720 (or 704) and a height of 480 or 576 lines. The third size is HDTV images that have 720 scan lines in height and are 1280 pixels wide. The largest size has 1080 lines high and 1920 pixels wide. 1080-line video is actually encoded with 1920×1088 pixel frames, but the last eight lines are ...
In NTSC, its frequency is exactly 315/88 = 3.579 54 [a] MHz with a phase of 180°. PAL uses a frequency of exactly 4.43361875 MHz, with its phase alternating between 135° and 225° from line to line. Since the colorburst signal has a known amplitude, it is sometimes used as a reference level when compensating for amplitude variations in the ...
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