Quantcast KVCD: 29.97 fps vs 23.976 fps? - digitalFAQ.com Forums [Archives]
  #1  
11-01-2004, 01:04 AM
shgr shgr is offline
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Hi everybody!

Im from Peru, so here we have NTSC as a standard.

my question is how can PAL be a standard if it has a low framerate? when I watch NTSC videos I can see it so smooth, but when I watch videos with framerates of 23 or 25fps I can notice that the fluidity is not the same.

does people from europe has "slower" eyes? , so ignorant; plz forgive me.

well, another question.
I tried to recode a 23fps video to 29fps using Tmpgenc, but what I got was a video with lack of fluidity.
can I make a real 29fps video?
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  #2  
11-01-2004, 01:53 AM
jorel jorel is offline
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with horrible english(excuse me in advance) let me trry to explain what i know:

NTSC and PAL are color systems and not standards.
wrong informations came from guides and tutors from the whole world.

then, PAL is know as standard G and NTSC as standadrd M......wrong!
PAL is the color system in europe(not all countries) and NTSC the color system in USA (and other countries)
when the whole guides and tutors show that differences they forget to explain that the big difference is the standard G from europe and the standard M in USA.

for example:
in Brasil is PAL-M!

the difference from NTSC-M is only the color system but the standard M is equal (of course)
when you take one NTSC tv from USA to BRASIL, you see everything in BLACK & WHITE because the standard is the same M and verical frequence,horizontlal frequence, the tunner and size of his bands, frequences inside the IF channel and audio are equals...you only change to trancode the COLOR SYSTEM form NTSC to PAL to watch everything in color.

but if you take one tv PAL-G from europe to Brasil, you can't see anything because the color system PAL is the same but the standar G is completely different of the standard M and have a big difference between tvs PAL-G from tvs PAL-M.
you don't need to change the color system to use that europeans tvs in Brasil but the whole structure of the standards like (again), vertical frequence,horizontal frequence, the tunner and the sizes of his bands, frequences of the IF channel, audio channel frequences, the color(sub) frequences, etc.
then, better is forget to use that europeans tvs in Brasil.....the whole standard G give big troubles for that changes because they are really differents of standars M!

i wish that i could help you more in my explanations shgr (excuse my poor english again )!

your doubts have more weight and deserve better explanations
...are more complex that is visible!
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  #3  
11-01-2004, 03:44 AM
shgr shgr is offline
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muito abrigado

however as you said, my question isnt answered at all.
muchisimas gracias, de todos modos.
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  #4  
11-01-2004, 07:13 AM
kwag kwag is offline
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Quote:
Originally Posted by shgr

my question is how can PAL be a standard if it has a low framerate
I'll add this to Rui's explanation
PAL is 25fps.
NTSC (Film) is 23.976fps
NTSC telecined is 29.97fps

In reality, PAL looks better than NTSC, because of it's higher resolution, and other things.
Maybe your DVD player doesn't reproduce PAL correctly, and that's why your results are not as good as NTSC.
If you play a PAL DVD on a DVD player that is capable of correct conversion, you will definitely see a better picture from a PAL DVD

-kwag
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  #5  
11-01-2004, 09:21 AM
rds_correia rds_correia is offline
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It was Jorge's explanations
But I take it as a compliment
Cheers
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  #6  
11-01-2004, 09:29 AM
kwag kwag is offline
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Quote:
Originally Posted by rds_correia
It was Jorge's explanations
But I take it as a compliment
Cheers

Sorry Rui



-kwag
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  #7  
11-01-2004, 09:32 AM
rds_correia rds_correia is offline
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No prob, as I said I took it as a compliment
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11-01-2004, 10:28 AM
Boulder Boulder is offline
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@shgr: Compare a film-origin (23.976fps pulldowned to 29.97fps) NTSC clip and a truly interlaced PAL clip and tell me which one looks smoother
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  #9  
11-01-2004, 01:37 PM
shgr shgr is offline
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Quote:
Maybe your DVD player doesn't reproduce PAL correctly, and that's why your results are not as good as NTSC.
YEs!! my dvd player is NTSC...
But... I dont know if PC monitors works with this standards, because when I watched that video in its original framerate I noticed the "lack" of frames. sorry if I insist on this.

Quote:
If you play a PAL DVD on a DVD player that is capable of correct conversion, you will definitely see a better picture from a PAL DVD
How can PAL looks smoother than NTSC if it has less frames per second to show?
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  #10  
11-01-2004, 02:00 PM
Boulder Boulder is offline
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Actually NTSC Film material is shot at 23.976fps, so your theory doesn't apply But the difference in the smoothness doesn't result from that (at least not in the simple way that 23.976<25).. I can't explain it in a few words so I suggest you read some stuff about interlaced and progressive video.
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