Jerky video when sound is added.

[chhansen]

Hello all,

I am in the process of making a photo montage for my mother-in-law before I would also put the on VHS but I decided to start making DVDs. I created the slide show in After Effects 7.0 and I have it slowly zooming in on the pictures. I then converted it to a .m2v file with TMPGEnc Plus then I converted a couple of MP3 files to AC3 files with ffmpeggui03c. Finally I put it all together with DVDLab Pro.

After burning it to a DVD-RW for testing in my dvd player I noticed that some of the pictures would jerk suddently and then the following photo would shake. This would happen randomly throughout the slide show. I did some research and converted everything the NTSC safe colors thinking that was the problem however I had the same results. I also tried using a DVD+RW since this was the first time I ever used a -RW in my player but that didn't work. Finally I went through every step of making the project testing the video through every step and it resulted the same. So I made one without the sound it the video works great. I also tested it with the sound in other DVD Players to see if it was just mine and it did the samething in two other players.

Thanks for any help you can give me
Chris

[chhansen]

Hello again...


I'm still not sure what the problem was but I decided to pull the video for After Effects and the MP3 files into Adobe Premiere and use the Adobe media encoder to make the .m2v and .ac3 file and the video and audio work perfectly. Must be a setting in TMPGEnc that I'm not setting that I need to.

Thanks,
to everyone that was trying to think of a solution for me.

Chris

[guns1inger]

It could be that the video was encoded with too high a bitrate, and adding the audio pushed it over the top. Re-encoding in Premiere Pro probably used a lower bitrate, resolving the issue.

[chhansen]

Thanks, for the tip I'll have to try that...

I still have a lot to learn about DVD since I've just started.

Chris

[chhansen]

Hello again,

I tried lowering the bitrate for TMPGEnc and ran into the same problem. I did notice however the .m2v file that the adobe media encoder created shows up in DVDLab as NTSC[DF] system type and the .m2v file that TMPGEnc creates DVDLab as a NTSC system type.

I was wondering what the difference is and why the NTSC[DF] doesn't have the problem that the NTSC file does. The only other difference is the one that works bitrate is 7002 and the one with the problem is 7018.

Thanks again.
Chris