[QuadList] 525 PAL & 4.43MHz (was 'Re: DVD vs Blu-Ray')
James Snyder
snyder at dtvexpress.net
Mon Dec 23 12:43:38 CST 2013
...and for those of you not familiar with TQ's reference: Brazil, in
its infinite wisdom, used 525 line analog TV, but with PAL color
encoding (YUV) on a 4.43 MHz color subcarrier.
NTSC, for those of you who don't remember that ancient art, used YIQ
color components on a 3.58 MHz color subcarrier....
AND: let's not forget those not-at-all-confusing monitors that used
"NTSC 4.43", which was a monitor that allowed NTSC color to be input
to a monitor on 4.43 MHz instead of 3.58 MHz. It was used in PAL
/SECAMcountries so you could play back NTSC in PAL/SECAM countries
without requiring a 3.58-capable circuit in your monitors. No, that
wasn't confusing for folks at all....
James
------------------------------------------------
James Snyder
Senior Systems Administrator
Library of Congress -
National Audio Visual Conservation Center (NAVCC)
Motion Picture, Broadcasting & Recorded Sound Division (MBRS)
Packard Campus for Audio Visual Conservation
http://www.loc.gov/avconservation/packard/
> > On 23 December 2013 at 17:48 Robert McCormick
>> <rmccormick174 at gmail.com> wrote:
>
>>Sometimes the NTSC label simple means 30 fps, and PAL 25fps
>
>I bet that the Brazilians would be a bit confused by that :)
>
>--
>TQ via webmail
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