Again audio file problem.

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Hi,

I demuxed a DVD in order to convert to NTSC. Everything is OK with the video but the audio file is rather big (793 MB) and has a delay of 16 ms and caused audiosynch problem.

I put it through DelayCut. The resulting file is of the same size. I tried to use ffmpeggui in order to make it 384 kb (or 224) instead of 448 and thus to make the file smaller. But instead I've got a file of 1,6 GB.

What am I doing wrong? Thank you!

P.S. Just found out that the initial audio file has no sound. It is dead silent. It looks I've donу something wrong.

Is it possible to correct it and get sound of those 793 MB? Thank you!

[guns1inger]

What will be the target for this file ?

If you don't need to edit it, then you can sort sync out at the end. You know the delay, so it is pretty easy to adjust it later.

I am also curious as to what tools and processes you are using that this causes you issues. Many discs have delays in the audio, but I have never had a problem processing them and having the audio go out of sync.

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It will be ac3 if I understood your question right.

I use regular stuff like DGIndex to demuxe. Procoder to convert to NTSC.

The audio had progressive audiosynch and I used delaycut.

But how to get back the sound from the file? Thanks.

[guns1inger]

So the end result will be DVD, converted from PAL to NTSC ?

My advice - don't screw with the audio. Demux it, and put it to one side.

Encode your video at 25 fps, use DGPulldown 25 -> 29.97 fps, then, when you are authoring, tell your authoring tool about the delay. Let it take care of it for you. I know that DVD Lab Pro can do this, as can others.

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Yes, I've laready got m2v (pulldown - NTSC).

I actually did it exactly that way but something went wrong. Now I have a dead silent audio file.

I cannot redo it and had to find how to get the sound of it.

[guns1inger]

If you screwed the audio then you will have to go back and demux the it again from the original.

The size would suggest that it is in fact a DTS file, not an AC3 file, which might explain why it is proving difficult.

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Thank you!