Source: PAL 25fps progressive Mpeg - Goal: NTSC DVD

CrazyRussian wrote on 4/15/2003, 2:16 AM

I guess subject says it all: I have bunch of files sent to me from Russia of home videos, they are 25fps, progressive with 44.1 Khz audio mpegs. I want to edit them and burn to NTSC dvd. My question is: do i start new project and set its properties as: video - PAL, 25 fps, progressive; Audio - 44.1 Khz, then do all my editing and then render using MainConcept encoder with NTSC DVD template? or do i set project's properits to NTSC to begin with?
TIA

Comments

RBartlett wrote on 4/15/2003, 3:46 AM

I would consider importing them into a 720x480 project, 24fps.
Thereby resizing the video by a crop not a scale. QA req'd.
Time stretch (expand) the video out 5%. So that 24 of the 25 frames fit into a second, so the film gets longer. Then frequency/pitch convert the audio up by the same 5%. So it sounds the same as the original but keeps lip sync. QA req'd, keep to 44.1KHz until the final render...

You could use smart resampling but you would lose the dynamics.
Then take the project into DVDA as 24fps (progressive) 48kHz NTSC.
Burn to disc or files and test that 2:3 pulldown inserted by a set top TV oriented player looks good.

This would follow how a 25fps cranked film camera is converted to work for both TV and cinema, and export to NTSC60i countries.

What'd'ya'think?

CrazyRussian wrote on 4/15/2003, 3:59 AM

Ohhhhhhhhh! Maaaan!!!!!!!!!
Dude!!! Thanks a lot, what a great info, so detailed, right to the point, saved me so much time!!! I almost figured out the audio/video sync, but couldnt put a number on it, but i wasnt even thinking about one more resizing - for the time loss caused by conversion... Ohhh so great!!!
Thank you.

CrazyRussian wrote on 4/15/2003, 8:11 PM

Marquat, I think problem is not in source or conversion but in techynology used in EU or US TVs. As far as i can remember from researching this issue couple of month ago: DVD player will play any disk in any format inserted into it and output signal of that DVD out to TV (NTSC DVD will result in signal going to TV in NTSC, PAL DVD will make player to send PAL signal to TV), it is up to TV to interpet the signal and draw it on the screen. Hence said, most, or majority of EU televisions are multi system, able to play NTSC signal just fine. In opposite of that, US for some stupid reason does not have that, they only have NTSC TVs, hence making playing PAL DVD's kinda not practical: you can hear but cant see.