Multiplexing audio

DiscCoasterPro · Post by **DiscCoasterPro** » Tue Dec 19, 2006 2:34 am

Hi all. This is something I've never had to do before. My friend has an m2v home movie file and a WAV file that he said he created by encoding his miniDV capture to an elementary stream. He did it so they could fit on two DVDs for transporting purpose to my house.

He asked if I could put some chapters in the video. The m2v file came into Workshop just fine, but I'll admit, I don't know what to do with that WAV file to put it all back together and in sync.

Can DVDWS do this?

thanks,
dcp

sjj1805 · Post by **sjj1805** » Tue Dec 19, 2006 2:55 am

Whilst DVD Workshop can accept several alternative audio tracks, if you are concerned about audio/video synch you may find it easier to use a Video Editing program such as VideoStudio / MediaStudio.

To fine tune the audio/video synchronisation I have written an article here:
VS & MSP: Fix for Out of Synch Audio/Video

DiscCoasterPro · Post by **DiscCoasterPro** » Tue Dec 19, 2006 3:02 am

Thank you Steve, I thought that would be the case. Always value your help! Thanks much

Ya know, I never tried just adding the audio track. Is this a common thing to just do in DWS and usually expect no special problems, or do you specifically recommend against it in favor of using an NLE to resave.

thanks,

sjj1805 · Post by **sjj1805** » Tue Dec 19, 2006 3:13 am

Normally you wouldn't have a problem with the audio/video synch issue.
The 'Main' audio track would be the one that natively belongs to the video and "should" already be in synch.

The extra audio tracks would normally be used for dubbing a different language - think of a DVd from the shops where you can choose the language which may include English, French, Norwegian, German and so on.

The only time I have used an extra audio track is when I created a Charity DVD. We had these two guys reading a bit of shakespeare.
The organisers of the charity event thought it would be a good laugh to have a second audio track where we had them planning a mass murder!

In these circumstances the audio/video wouldn't fit each other anyway.

DiscCoasterPro · Post by **DiscCoasterPro** » Tue Dec 19, 2006 6:59 am

Steve, you were right on. I dropped the audio in and it synced perfectly. I don't know, I guess I'm so used to being "murphyized" that I was afraid to try.

thanks again!

skier-hughes · Post by **skier-hughes** » Tue Dec 19, 2006 11:14 am

I always create m2v and wav files from canopus procoder and import into WS2.
Only thing you have to watch is if you want to edit the m2v file you can't, as the audio remains the same.