PAL VCD help........PLEASE!!!

[toto691]

i am familiar with converting various movies to VCD, my only question is how to get rid of the 'slight jerk' every second throughout the movie.

I am pretty sure its because of the difference in frame-rates from the film i download (usually NTSC) then converting it to a higher frame-rate such as PAL (25fps)

The 'slight jerk/pause' is very slight, but because it is there.....I NOTICE IT MORE!!!! Its more noticable when a section of a film scans from left to right, or follows a smooth pan, and its almost EXACTLY to the second?!!!

Is there a way of getting rid of this? The films i download are such good quality, it seems ashame to lessen the quality to be able to watch them on my DVD player.

PLEASE HELP.................

[antoniosgubba]

Does the jerkyness appear AFTER you've converted from NTSCfilm (23.976fps) to PAL (25fps)??
If I encode an NTSCfilm movie as NTSCfilm then I get exactly the same jerkyness you describe...BUT, if I convert it to 25fps first with virtualdub (and timestretch the audio to match with Goldwave) it plays nice and smooth.

[toto691]

YES IT DOES.........AFTER i encode it!!!

I am NOT familiar however with using anything else to change frame rates. I use VirtualDub to extract a .WAV file for various audio...........but not what you have mentioned.

What does this do, and how do i do it (dont be afraid of telling it like you would to a child!!!!!)

Thanks for the help.............

[bugster]

First thing, are you sure you really need to convert these films to PAL. Your DVD player WILL play NTSC format videos (or at least I have never heard of one that wont!), the question is will your TV handle what your DVD player outputs. In these case DVD player will output either NTSC signals or PAL-60 (sometimes you can select either). Most modern European TV's will handle at least one of these formats and if yours can, don't bother changing framerate.

If you are sure you can't play NTSC VCD's, then there is a proper framerate conversion guides in the HOWTOS section of the site.

Hope this helps.

[snorkel64]

you can use tmpeg with the donotframerate convert option ticked in the advance tab

That'll break audio video sync and allow 25frames of the NTScFilm footage (1.04 seconds) to be used as 25 frames of PAL footage (1 second) once movie has been converted like that it'll be perfectly smooth BUT you'll need to redo the audio by time compressing it (avoid soundforge for that no matter which filter is used its not accurate and you'll get tiny drift towards the end, I tend to use besweet to do it)

best method is to do the audio conversion first (to a wav file) then encode the PAL version using the new wav fle as the audio source (saves manually muxing the audio in afterwards)

snorkel64

[antoniosgubba]

I agree with not using Soundforge...it only produces a resulting WAV accurate in length to within 0.01%...which doesn't sound a lot, but over the course of a two hour movie can be around one second..plenty enough to cause lip sync problems...I use Goldwave for timestretching, which tends to produce a resulting WAV accurate to within around 1/25th second for a typical 2 hour movie, hence giving no noticable lip sync problems.