[emalen]

So I am burning my first DVD with my PB 15" (Panther)....

Unfortunately, the sound is completely out of sync.... It looks like one of those dubbed over Japanese Anime Videos!

Has anyone ever experienced this?
If so, does anyone have any suggestions..

Thanks in advance,

emalen

[k_munic]

to answer your question it needs a lil' more background info

was your input material some homebrewn iMovie project?

or was it an - let's say - "internet download stuff"?

if b), some/many/all these mpegs, divx and svcd' bins&cues have some very strange mix of video and audio encoding!

if the sampling of audio is non-standard (and, in some/many/most/all cases it is!), the result is an out of sync video after conversion (in your case into mpg2 for a dvd...). to correct these different timelines of audio and video, it needs some very tricky re-conversion, depending of what the sampling rates were. dozends of possibilties
sometime it works, to just de-muxx the original mpeg, to convert them into a .dv stream and a aiff and to re-import in qt pro the sound into the video, mode "scaled".

if a) (material was self-produced on camera/recorded video), edited in iMovie/FC(E) and then exported into iDVD - it SHOULD be in sync.- sorry, no idea....

[emalen]

The Movie was made using my Panasonic DV Camera....... It's really frustrating, as I've wasted about 3 dvd's trying to burn this (not to mention countless hours!) Could it be my upgrade to Panther.....?

emalen

[Uncle Skeleton]

I heard something somewhere like iMovie wants 16 khz audio and certain cameras only use 12 khz or something, so you have to export the audio and reimport it and iMovie will change everything the way it likes it, then when you send it to iDVD all will be well. it's worth a shot

[SeSawaya]

the first DVDs I burned did the same thing. Since I upgraded the imovie and idvd patches, everythings been fine. Make sure all your stuff is current.

I feel your pain

[dqk]

I'm pretty sure I have your answer. I agree with the 12 bit vs. 16 bit idea mentioned above. I had the same problem and called applecare who told me that you have to export from your camera while it is in 16bit audio mode or in longer movies the sound will be delayed from the movie. I tried it and it seems to work much better. That should solve the problem. Another thing he mentioned was that it was not necessary to record in 16 bit, just export, but just to be safe it might be a good idea to record from now on in 16bit. Anyone know if this will make a difference?

Darren

[emalen]

Dear Darren,

thanks for the advice.. how to i ensure i'm exporting in 16bit,.. on my Panasonic DV camera menu - it has a record option in 16bit or 12 bit, but nothing with regards to exporting.. is there something i can click in imovie to ensure this?

thanks,

emalen

[warnergt]

Hi emalen:

Sounds like you had the same problem I had. Don't count on the 12/16-bit thing fixing your problem.

The problem is that consumer digital video cameras almost always do not lock the audio with the video. Both are allowed to freerun. Everything seems fine in iMovie but it really isn't. The symptom doesn't exhibit itself until you write a DVD and the accumulated slippage becomes intolerable.

Here is what you need to do. Go back to your movie in iMovie. You need to go to each and every clip (especially after some time has progressed), extract the audio clips and lock them at the playhead. This will lock the audio clips to the video clips and prevent that accumulated slippage from occurring when you write a DVD with iDVD.

This is actually pretty easy; it just takes a little time. Do this:
1) View your clips in the timeline viewer.
2) For each and every clip, do this:
2a) Select the clip by clicking on it.
2b) Extract the audio with (Command-J).
This will make a copy of the audio
and mute the audio in the combined
video/audio clip.
2c?) Lock the audio clip at the playhead (Command-L).
The playhead should already be
positioned at the beginning of the
video clip after step 2a.

Step 2c may not be necessary. Step 2b may automatically do it. I forget -- it's been a couple months since I did it.

Anyway, I believe this will solve your problems. It cured mine. Let us know.

[dqk]

Warnergt-

Thanks for the extra info. It sounds like you have a better idea than the apple technician did. Does this only happen in iMovie, or in all applications when burning to a DVD from digital video?

Darren

Any way to get around going through every single clip?

[dqk]

Warnergt -

I have a quick question. In iMovie I just did a "select all" then I did extract audio and it went through the whole thing without having to go through each clip. Will that work the same or is it necessary to go clip by clip?

Thanks,
Darren

[warnergt]

I don't know the answer to your question.
I never tried it that way (although I did
try countless approaches before I figured it out).

That will work if the audio clips get correctly
locked to the beginning of the respective video clips.
I don't know if this is what happens or not.

My video projects have been sidelined for
a couple months while I work on some other
stuff so it is not fresh in my mind. But I
was pumping out a lot of videos over the
summer and the approach I provided worked
each and every time.

[stevesnj]

Did you seperate the audio and video track in iMovie? I had the same problem but discovered I moved my audio clip slightly by mistake and sometimes when I did overlapping audio it moved off synch a few times.