PDA

View Full Version : Audio Sync With Progressive Film


old-hack
19th November 2002, 15:51
I've used TMPGEnc for both mixed film/video and 99% film and gotten great video quality. I've also used it to IVTC Jason X with exceptional results. There are only 4 options for encode mode with TMPGEnc - non-interlace, interlace, reverse 3:2 pulldown, and 3:2 pulldown during playback. I selected 3:2 pulldown during playback for the progressive film (DVD2AVI forced film). When I author the encoded progressive film, the audio refuses to sync up correctly. I've tried AC3Fix and DVD Maestro's audio synching option but couldn't get the kind of synchronization I get with a CCE encoded progressive film using Pulldown.

I do not have audio sync problems when encoding using the non-interlace mode on mixed film/video and "de-interlacing" the movie.

Anyone encoded a progressive film with TMPGEnc using "3:2 pulldown during playback" encode mode?

What encode mode would be appropriate if I wanted to use Pulldown instead of TMPGenc's integrated pulldown encode mode?

Right now I can only trust CCE for progressive material and TMPGenc for mixed film/video and to IVTC NTSC material.

The encode mode option is on the video tab of the MPEG setting page.

old-hack
20th November 2002, 15:56
Since I'm only getting looks, I'll throw this out.

TMPGenc's 3:2 pulldown is what throws the audio sync off. If I encode my progressive video with TMPGEnc, don't select 3:2 pulldown, and use the well known Pulldown program, I get perfectly synched audio.

Thanks for looking.

Stabmaster-Arson
29th November 2002, 23:30
1) Use pulldown.exe OR,
2) Load NTSCFILM.mcf then load Unlock.mcf

Tgis has the same effect as using puldown, without neeeding pulldown, and will remain in sync.. You will after doing this have to finish configuring your settings of course.

atreides93
3rd December 2002, 00:12
I was looking at the help screen for 3:2 pulldown when playback and it says the outputted mpeg2 file will be 29.x interlaced! why would you want that for your output if the source is progressive? just curious

atreides93
3rd December 2002, 18:06
I think you're on to something.
I encoded some video with tmpgenc using progressive with 2:3pulldown when playback.
Spruceup says the video is 1 hour 11 minutes and 5 seconds.
but the AC3 file is 1 hour 11 minutes 9 seconds according to soft encode. damn! i know its only 4 seconds but that can throw the whole sync off.

i'm going to try using tmpgenc with just progressive and non-interlace. then use pulldown and see if there's any difference.

old-hack
3rd December 2002, 21:01
Decided to search the help file in TMPGenc for the "other" 3:2 Pulldown option on the advanced tab of the settings page. The help file says this filter raises the framerate to 29.97 and leaves the film as non-interlaced. Maybe that's the filter to be checked during encoding while leaving the encode mode field on the video page as non-interlaced.

atreides93
3rd December 2002, 22:41
hmmm,
you going to try it out? :)

i'm going to try out cce

dannyv
10th December 2002, 22:45
Originally posted by bweeston
Since I'm only getting looks, I'll throw this out.

TMPGenc's 3:2 pulldown is what throws the audio sync off. If I encode my progressive video with TMPGEnc, don't select 3:2 pulldown, and use the well known Pulldown program, I get perfectly synched audio.

Thanks for looking.

Intresting bweeston,

I'm intrested in trying your method, I have a few questions.
What are your settings in tmpgenc on the video tab? Are you setting your frame rate to 29.97 or 23.97 and what encode mode do you use for mixed video/film?

Also I have never used pulldown.exe so excuse my ignorance to this next question. Do you use it on the resulting m2v file that tmpgenc creates?

old-hack
12th December 2002, 16:46
I'm at work, so I only have one answer for you now. Anytime you use DVD2AVI, "forced film", and re-encode, you will have to run Pulldown.exe on the re-encoded video file. There are guides in the guide section that spell out the details regarding the use of Pulldown.exe after encoding.

However, if you are using TMPGenc, do not select the "3:2 pulldown during playback" encoding mode. This is supposed to be the built in "pulldown" for TMPGenc which, as I said earlier, causes synching problems when re-authoring your video and audio.

If you use DVD2AVI with "none" selected (vs. "forced film"), then your video material is usually mixed film/video (as TMPGenc calls it). There is a drop-down field that allows you to identify the source video material as mixed film/video in TMPGenc. In this case, you want to identify the output as de-interlaced and I usually put a checkmark in the box beside "de-interlace" on the advanced tab. You can double-click on the de-interlace item and another window pops up that allows you to ensure whether the video is Top-Field first or Bottom-field first. Don't recall the exact instructions on doing this, but one of the guides covers it.

dannyv
12th December 2002, 17:22
Originally posted by bweeston
I'm at work, so I only have one answer for you now. Anytime you use DVD2AVI, "forced film", and re-encode, you will have to run Pulldown.exe on the re-encoded video file. There are guides in the guide section that spell out the details regarding the use of Pulldown.exe after encoding.


I figured out how to use pulldown but had no luck with the sync problem. This I think was because I added a few unnessessary switches to the command line when I ran it. Also I did not setup tmpgenc as you did but I did encode it without 2:3 pulldown selected. I'm going to try what you outlined and see if it helps. I'll report back my results.

dannyv
13th December 2002, 15:24
I still had no luck with the audio sync issue even after trying the suggested settings. I gave up on tmpgenc and am now using cce and my audio sync problems are gone.