xvid 23fps

[gges]

xvid files that are 23fps - how do i convert them and avoid jitter & stutter on playback? Using TMPG and have no problems unless video is 23fps. Can convert to NTSC film - 23.976fps and plays back fine on a Tosh DVD player but crap on others (Naiko etc.) Jitters & stutters constantly.

Help please guys!!

[setarip]

Are you in the PAL "world" or NTSC "world"?

[gges]

PAL.

Cheers pal!!!

[setarip]

Your Toshiba probably has the ability to internally convert NTSC (29.970fps)/NTSC Film (23.976fps) to PAL (25.000fps) - whereas the others you refer to probably don't.

Use TMPGEnc with all PAL settings.

Let su knwo of your success ;>}

[Ndb]

DON'T encode a 23.976fps movie as PAL in TMPGenc or all you will get is a choppy movie on all motion scenes.

You can convert a 23 Film to 25 PAL beforehand then stick it in TMPGenc as a PAL movie by timewarping. Here is a guide from King John on VCDeasy:

http://www.vcdhelp.com/forum/userguides/138106.php

Also if your TV supports NTSC playback (most do these days), then set your DVD Players to "auto" instead of PAL (check your manual) then they will playback in pure NTSC.

The other thing which a lot of people overlook is it can also be down to your DVD media, as not all media is compatible with all players.

I hope this helps Ndb)

As always this is IMHO

[setarip]

Contrary to what Ndb has posted, if you use the following procedures under TMPGEnc, you should obtain satisfactory results:

23.976Fps (Xvid-compressed, DivX-compressed, or otherwise).AVI to 25Fps VCD

1) Load the 23.976Fps (NTSC Film) .AVI into TMPGEnc
2) Set the "System" tab to "MPEG1-VideoCD"
3) Under the "Advanced" tab, set "Source Aspect Ratio" to "4:3 625 line (PAL)" and "Video Arrange Method" to "Center (custom size)" and 352x288
4) Under the "Video" tab, set "Size" to 352x288 and "Aspect Ratio" to "4:3 625 line (PAL)". Set "Framerate" to "25Fps". Set "Rate Control Mode" to "Automatic VBR (CQ_VBR)

[Ndb]

Well I never thought I would see the day that setarip got so much wrong

But sorry a 23.970fps movie encoded at 25fps is not gonna be smooth no matter how you look at it. You may get away with it if your movie contains no motion, but as soon as you get a camera pan or driving scene etc - hello jerkiness!!!

A 23fps movie contains 96% (95.904%) less frames than a 25fps movie, so TMPGenc will add duplicate frames to convert 23 to 25 and this will create pauses i.e. elongated frames.

Sorry, but I am 100% correct on this one

[setarip]

I guess I'll simply agree to disagree...

[setarip]

By the way, it's possible that you overlooked the very last setting that I suggested:Automatic VBR (CQ_VBR)

"Single pass encoding is used which automatically adjusts the video bitrate up during high motion sequences and down during low motion sequences."

You might want to experiment with the procedures I've suggested, "just to see if they work" ;>}

[Ndb]

CBR, 2-pass VBR or even a single pass Automatic VBR (CQ_VBR) will not effect the framerate.

bitrate is not framerate it is still a movie that only has 23.976 frames for every second of video and when encoded as 25fps TMPGenc will add 1.024 frames for every 25 frames each second.

This will be done by duplicating the previous or preceeding frame to pad out the missing frames, which in turn will will cause what will look like paused frames in high motion scenes and camera pans no matter how high a bitrate you use for the scenes.

Still and low motion scenes will seem fine until the camera pans or the action increases.

bitrate effects quality of video
framerate effects smoothness of video

Ndb)

[setarip]

To Ndb

Not to be argumentative (nor am I questioning your logic or definitions but, since I've successfully done several such conversions (which include panning and other action)with satisfactory results, I'd simply repeat:


You might want to experiment with the procedures I've suggested, "just to see if they work" ;>}

After all, nothing ventured, nothing gained...

[Ndb]

Well I will always agree that you are more knowledgeble than me setarip and fully agree with "After all, nothing ventured, nothing gained..."



Ndb)

[setarip]

To Ndb

Glad to see you've got a smile on your (green) face ;>}


Seriously though - gges (Let's not forget the person who started this thread) and you should give it a try...

[gges]

Calm down guys!!

Thanks for all the replies on this post, will be trying them out and will post a follow up with my results.

Thanks again.

[gges]

Setarip,

Have been trying your method but am unable to change settings under the video tab - the boxes are grey.

Any help is greatly appreciated.

Cheers.