Editing audio from dvd and back

[subba]

Hello, I have a dvd (concert) with terrible audio on it and my plan is to edit the audio in, for instance audacity, lower the bass and etc. I have already extracted the video from the DVD using Vob2Mpeg. The next step should be to demux the audio from the mpeg file but I just can't figure it out. I suppose I should add the mpeg file to Virtualdub Mod? And then what?
1. Could someone help out from where I add the file to virtualdub mod, please?

2. I use dvdLab pro but how do I work it out later on when it's time to re-author the dvd, I mean, of course I will add the mpeg and then the re-authored audio file, but will the old bad audio still be there in the background or can I author it with the new audio only?

Thanks in advance!

S//

[Soopafresh]

I'd use DGIndex to Demux the audio

[guns1inger]

Or Rejig

[Harpreet]

Sorry for hijacking this thread, but this is exactly what I am trying to do as well - editing a live concert DVD with terrible camera mike audio. Thanks for telling me the tools to use to start this process.

OK, so I'm going to extract the audio using the tools described here and edit it using some software like Wavelab. I have a question regarding the next step. After I'm done, what tools would I use to mux it back into a VOB and a DVD? Thanks.

[hech54]

The easiest way is to rip the footage as one giant lump of video(with something like DVDDecrypter - file splitting NONE)...and at the same time demuxing the audio from the video.
Convert the audio to a workable format, edit/enhance it, re-author the DVD.

[Harpreet]

Thanks Hech54. DvdDecrypter sounds great but how do I demux using it? I can't seem to figure that out.

Regarding the reauthoring, is there no simple way to put the DVD back together the same original way without re-authoring/recreating the menu's etc.?

[manono]

Regarding the reauthoring, is there no simple way to put the DVD back together the same original way without re-authoring/recreating the menu's etc.?

Put the entire DVD on the hard drive (DVD Decrypter in File Mode). Demux the video in question to get the audio (PGCDemux). Do whatever you plan on doing with the audio. Remux the video, edited audio, chapters (in the celltimes.txt file provided by PGCDemux), and subs, if any (Muxman). After that you'll have a "mini-DVD" of the concert only. Stick it back into the original DVD, getting back the menus and any extras, using the "Replace" button in VobBlanker.

[hech54]

Thanks Hech54. DvdDecrypter sounds great but how do I demux using it? I can't seem to figure that out.

Regarding the reauthoring, is there no simple way to put the DVD back together the same original way without re-authoring/recreating the menu's etc.?

You can find demuxing in IFO mode - Stream Processing. Highlight the video - check demux, highlight the audio - check demux. When the output is completed you will have one piece of video and one piece of audio to play with....you won't have the issues of multiple pieces of both to deal with...and the inherent audio sync issues that sometimes go along with editing across several .VOB's.
I'm sure there is software out there that can do all you want from a straight RIP of a DVD with multiple VOB's but I'm afraid that is for someone else to talk about....I stick to what works for me....and I don't deal with menus all that much...I've made some really cool ones with TDA but menus are not that important to me.