Lip synch Problem

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Vincej

Lip synch Problem

Post by Vincej »

Looking at my previous post - I did not adequately frame my question - Given the below situation what can I do within VS9 to convert my Mpegs to NTSC without a lip synch problem - please advise / help:

I have a backlog of 30 home video tapes recorded on an analogue PAL Sony camera.

GOAL: is to achive all of these off onto DVD without any cute special affects of any kind. Now I live in Canada so I want to convert the tapes to NTSC. I have read the sticky on success DVD creation and followed the steps.

PROBLEM DEFINED: I create a video file from the PAL source adn convert to NTSC at this stage. The final burned DVD with NTSC conversion show no lip synch problems at the beginning of the video. By the end of 40 minutes there is a 5 second seperation between lips and voice.

PROPERTIES of orginal PAL video:
MPEG 2, Upper Field First
24 bits, 720x576, 4:3
25.00 frames / sec
variable bit rate 8000kbps

MPEG Audio layer 2 files
48khz 16 bit, stereo


PROPERTIES of NTSC Converted video:
MPEG 2, Upper Field First
24 bits, 720x480, 4:3
29.970 frames / sec
variable bit rate 8000kbps

LPCM audio
48khz 16 bit, stereo

capture device: ADS cap wiz


INCONSITENT ANALYSIS: Many posts on this forum say that PAL to NTSC conversion is hard - near impossible. I have a Samsung multistand vhs and this hardware device will convert PAL DVD's to NTSC in *real time* without any loss of quality or lip synch probelms.

Idea: I have read that there is a new ADS device DX2 with lip synch lock - could this help ?
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Post by lancecarr »

If you capture the PAL footage to your computer as DV AVI then convert to NTSC DVD AVI using VS you will get a reasonable result.
If you convert MPEG to MPEG using VS you will accentuate the jerkyness caused by the frame rate conversion due to the compression of the MPEGs.
If you convert DV AVI to MPEG again you will accentuate the jerky movement.
If you want perfect then spend about $150 for the Pure Motion DV Converter. It does nothing else, just converts PAL DV AVI to NTSC DV AVI and the result is amazing. Capture to PAL DV avi, convert to NTSC DV AVI then render to DVD compliant MPEG file, then burn.
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Post by skier-hughes »

I'd second the above.

Get a proper standards converter, VS will not convert the frame size/rate/chrominace/luminance for you.

I use canopus procoder, and capture as PAL dv-avi. WIth Procoder I can convert from this to NTSC MPEG2 in one go, but otherwise always work in dv-avi until you are ready to reach the final stage, so PAL>NTSC>Mpeg.
dazzler

Post by dazzler »

Check out a program called DVDate

It converts DV Type 1 to DV Type 2 and vice-versa and
It converts PAL to NTSC and vice-versa and
It has other features as well and
It is free

Don
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