NTSC to PAL framerate conversion

Tutorial video on converting NTSC to PAL using VirtualDub, Avisynth and Mvtools2. NOT FOR BEGINNER. Anyone interested in framerate conversion can use this (also film to video conversion can benefit)

Category:

Howto & Style

Tags:

• VirtualDub
• Avisynth
• Mvtools2
• concert framerate
• convert NTSC to PAL
• 30fps to 25fps

[titolala]

Thank you for tutorial, very well made and clear.

I hope to use it (morphing version) for conversion from a full HD NTSC file .mts (recorded at 60i with a Canon Vixia) to a PAL file, then editing it with Nero; in this case I need to change some parameter? Thanks again!

[JELmusic]

@titolala You need to add 2 more commands for interlaced video (60i). Right after 'DirectShowSource' you add 'SeparateFields()'. This turns the video from interlaced into progressive. Then after 'MFlowFPS' you add 'Weave()'. That should give you a good starting point, but since I don't know your video you may have to do further adjustments. Best thing is to open the help file for AviSynth and look under 'Core Filters' and sub-menu 'Interlace filters' for field-order settings (TFF vs BFF) etc.

[JELmusic]

@titolala and then use 50fps instead of 25 in the MFlowFPS num= setting since interlaced is 50 fields (the weave command makes it 25). Make some tests before trying to convert the whole video. Take a clip and experiment on until you find the settings that produce the picture you want. It can be a bit tricky to get correct. Good luck :)

[blahdelablah]

It seems to me that the frame drop and blend .avs scripts are identical. If this is correct, how do I select between these two methods?

[JELmusic]

@blahdelablah They're not identical. ChangeFPS is used for pulldown, while ConvertFPS is used for blend :)

[ab94a]

I have a dvd that has pictures on it and it worked when i tried it when i was on holiday, but after i brought it home the pictures said that they are 0 kb, i tried it in my dvd player and it also doesnt work. but space has been taken up on the dvd. Can anyone help. thanks

[JELmusic]

@dontnou3 Re-use this tutorial but use the value 29.97 instead of 25 (in the 3 scripts; where it says 25 in this tutorial you replace it with 29.97). That's the only difference when going the other way :)

[dontnou3]

@JELmusic ok i know this may be asking too much, but could you make a tutorial video explaining step by step on how to do it?

I´m sure it would help a lot of people :)

[JELmusic]

@dontnou3 Going from 25 to 30 fps will change quality. Run a few tests on your own video to see how it ends up looking. Whether you find it better or worse than no fps-conversion is a matter of personal taste. The same rules apply though; pulldown and blending will result in a more jerky video, while interpolation will produce more image-artifacts. I don't use Vegas myself but I believe that it can load the .avs script you create just as good as virtual-dub can. Hope that helps you onwards :)

[dontnou3]

@JELmusic ok,and umm will it reduce its quality?how can i use it with sony vegas?