PAL to NTSC and keep 5.1 sound

[nwg]

I have converted PAL to NTSC just fine using 2 channel sound.

On another project, I have converted the video to NTSC. The sound is DD 5.1.

How do i keep the DD 5.1 as 5.1 but speed it up to 29.97 f/ps. I have used AC3 machine and it comes out speeded up from going from 25 f/ps to 29.97 f/ps.

I am using TMPGEnc DVD source crreator but that doesn't recognises AC3 like TNPGEnc doesn't.

I am creating the DVD files with DVD Author.

[nwg]

OK, progress made.

I thought what the hell.

I just put the unaltered AC3 audio file with the new NTSC mpeg (thanks to TMPGEnc DVD Source Creator). The audio is in sync with the video on the computer.

I will burn a disc tommorow and check on the DVD player.

[nwg]

Does anyone know why the picture is juddery and stutters. This is going from NTSC to PAL. What can be done to sort it out.

[Quality's Proof]

Alas, the ever elusive (or so it seems) PAL to NTSC / NTSC to PAL freeware. There have been some success stories, but by using much processes, etc.. TMPEG seems not to deliver on the DVD format conversion, though some say the SVCD format conversion is okay.

It doth seem we need a G.K. type solution (G.U.I.) to this problem. It is very frustrating.

[ashy]

Does anyone know why the picture is juddery and stutters. This is going from NTSC to PAL. What can be done to sort it out.

I take it you have used TMPG to do the format conversion?

TMPG cannot do proper frame rate conversion, you will have jerky playback as you have discovered.

There are 2 ways you can do it successfully.
One is to simply slow down the framerate of MPEG to 23.976 with Restream and then add 2:3 pulldown to make it 29.97.
You will then have to stretch the audio to match the video and then multiplex together.
Most PAL DVD's use a 4% speed up from 24 fps anyway so all you are doing is reverting back to the original frame rate.

The second way is to use AVIsyth, much better than TMPG, but not as good as the slow down method.

AVIsynth is free. Just simply use the command CONVERT FPS(23.97) or CHANGEFPS(23.97) in a script.

I would recommend the slow down method for ultimate quality preservation, but if you choose to do it the AVIsynth way (this way the length of the movie doesn't change) then I would use CHANGEFPS as this seems to give better results when converting PAL to NTSC.

A simple script such as below would work when using DVD2AVI to create a project file from the VOBS:

LoadPlugin("D:\Avisynth\MPEG2DEC.dll")
mpeg2source("D:\Vobs\test0.d2v")
ConvertToYUY2()
Changefps(23.97)
BilinearResize(720,480)

[megamachine]

I've had this problem, too, and would like to try the slow down method. Ashy, could you explain what you mean by Restream? Is that something I can do with TMPGEnc? In advanced settings, there is something for 3:2 pulldown, but how do I restream? Also, what method do you recommend for adjusting the audio? Should I demultiplex before restreaming and pulling down? Much obliged.

[nwg]

Thanks for the replies. I have given up on it for the moment. It is not worth the effort.

I can do PAL to NTSC ok, but NTSC to PAL is what I wanted most.

Restream -

http://shh.dvdboard.de/restream.html

[megamachine]

Thanks, NWG, for the link to Restream. Got that. Now, Ashy, I presume once I slow down the frame rate with Restream, then I use TMPGEnc for 3:2 pulldown? And for the audio, how would I "stretch the audio"? I'm curious to give this method a shot.

[ashy]

I can do PAL to NTSC ok, but NTSC to PAL is what I wanted most.

In your original posts you asked how to convert PAL to NTSC with out juddering problems not NTSC to PAL.

NTSC to PAL is just as simple, I do it all the time.
If your source is NTSC DVD then use the FORCEfilm option in DVD2AVI when creating a .d2v this will return the DVD back to it's progressive state at 23.976 fps.

Then just use the speed up method with Restream and then use the procedure below for shrinking the audio length to match the video.

@ megamachine

You will need COOLEDIT or GOLDWAVE to do the stretching. I recommend GOLDWAVE5.

Once you have used restream and created the video only MPEG with TMPG using the '3:2 pulldown when playback' option under the 'VIDEO' tab then you will need to find out the exact length of the video.
The easiest way to do this I find is to just load it into Virtualdub mod then copy the total length from the bottom of the window.

Start goldwave then load your audio, select effects then timewarp. Paste the time length you got from Virtualdubmod into the TIME box and then and then click OK.

After processing just save it as a wav.

[megamachine]

Great, ashy, I'll give that a whirl. Much obliged!

[MITCH1302]

I also have a audio problem

When i burn a DVD with shrink 3.16, the sound through my home cinema sytem playing 5.1 is excellent, as it is through my pc two speaker system, however.

through my tv there is virtually no sound

Any theories

TVM

[sfheath]

Mitch1302, adding new questions to threads is misleading and confusing for others. I've posted a reply in your own thread.