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Old 7 Jun 2005, 07:58 PM   #1
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Default 23fps to PAL/NTSC

I have an avi that I would like to convert to PAL (or NTSC) MPEG, prior to burning to DVD.

The avi is film rate, 23.whatever fps. Audio is AC3 2 channel, in perfect sync

What would be the best way to convert

I typically use Mainconcept to convert avi to elementary video (mpv), and vdubmod to demux AC3, then assemble everything in DVDLab

If I do that in this case, I will end up with sync problems. Any advice on converting from film to PAL/NTSC and maintaining audio sync appreciated?
I dont have Canopus, so cant use that tool.

Had a brief look through the forum (I'm sure there used to be many many more threads on here a few months ago!) and the closest Ican find is a thread from BlackPearl.. but not sure if that will help in this case)

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Old 7 Jun 2005, 08:22 PM   #2
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Check this out. It is not an easy job and as you have already highlighted, audio sync is a real problem.

Easiest thing to do is buy a player that can handle both formats.

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Old 8 Jun 2005, 12:06 AM   #3
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Hmmm... why not just use the "match audio and video lengths in Vdubmod?

I have a player that can handle both PAL and NTSC, the problem is the frame rate - I'm pretty sure 23.9fps will cause a hiccup somewhere. And almost certainly when transcoding the audio to 48KHz.
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Old 9 Jun 2005, 05:36 AM   #4
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I believe you can accomplish the conversion from 23.976 to 29.97 (NTSC DVD standard) by using "TMPGEnc" (Different than "TMPGEnc DVD Author") and selecting the "3:2 pulldown" filter from under the Settings>>Advanced tab...


If you have more questions, always feel free to ask them...
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Old 9 Jun 2005, 06:48 AM   #5
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Default setarip, alewis

"I believe you can accomplish the conversion from 23.976 to 29.97 (NTSC DVD standard) by using "TMPGEnc" (Different than "TMPGEnc DVD Author") and selecting the "3:2 pulldown" filter from under the Settings>>Advanced tab..."

yes this works very well and happens to be the method i use.

with the ac3 acm decompressor installed, virtualdub can be used to save the ac3 audio to .wav, then use this as the audio source before tmpgenc encodes.with this method i never have audio/video synch issues...
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