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Old 30. May 2009, 12:30 AM   #1 (permalink)
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Default Extracts audio from a DVD disc or .VOB file.

I tried an application from Jodix but the sound quality was unlistenable. I have a few concert DVDs that I would like to listen to while I am gaming sometimes. But I don't want to use the resources that a video player needs while I am gaming and I see no reason I should have to repurchase the same music on a CD just because I don't want to watch the video.
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Old 30. May 2009, 05:14 AM   #2 (permalink)
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Extracting audio from a video file can be achieved by means of converting from a video to an audio file. You might want to try out some freeware mentioned in Best Free Audio / Video Format Conversion Program".

Hope this will help.
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Old 31. May 2009, 12:55 AM   #3 (permalink)
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Get DVD-Decrypter. In IFO mode, under the Stream Processing tab, you can demux (separate the audio from video), giving you the original AC3, DTS, or LPCM audio completely untouched quality-wise. Plus, it's super easy to use.

I used it recently with the new Black Sabbath "Paranoid" Deluxe Edition DVD that has a surround sound mix of the entire album. Playing it as a DVD is overkill since there is no real video content to speak of.
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Old 31. May 2009, 04:01 PM   #4 (permalink)
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Default VobEdit

That's a good idea. Try also another small tool VobEdit (88 KB only), for joining, cutting and demuxing DVD VOB files.
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Old 05. Jun 2009, 08:09 AM   #5 (permalink)
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Three good ones to try once you have the dvd decrypted and ripped to your hard-drive (DVDFab is a good one to do that, freeware version has basic features only. Find it at http://www.dvdfab.com/free.htm or http://www.videohelp.com/tools/DVDFab_Decrypter )

Rejig -- using IFO mode
http://www.videohelp.com/tools/ReJig

PgcDemux --
http://download.videohelp.com/jsoto/dvdtools.htm
or
http://www.videohelp.com/tools/PgcDemux

DGIndex --
http://neuron2.net/dgmpgdec/dgmpgdec.html
or
http://www.videohelp.com/tools/DGMPGDec


All of these can pull out just the audio tracks if that is all you want, or they can split out and save the video and audio as separate files. DGIndex has the option to automatically re-encode the AC3 audio to WAV format while it demuxes, but now that Audacity v 1.37 has support for AC3, I'm using this option less and less.


I use all of these, and find them all easy to use, but PgcDemux has the simplest interface.

DGIndex and Rejig can work with vob files that have been ripped as one single long file, but PgcDemux MUST have vob's that are in 1-GB chunks.


Rejig seems fastest, but none of them take much more than 15 ~ 20 minutes to process a 2-hour dvd on my Dual-core 3 ghz machine.

DGIndex documentation is very thorough, to the point that it makes usage sound more complex than it really is.

Overall, I like Rejig best for just quickly pulling out an audio track. (if that is all you do with it, make sure to UN-check option to correct audio delay, that correction doubles processing time.)

Last edited by grannyGrump; 05. Jun 2009 at 08:12 AM.
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Old 05. Jun 2009, 11:13 AM   #6 (permalink)
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Great post.
"Halves processing time", perhaps?
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Old 08. Jun 2009, 07:16 AM   #7 (permalink)
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Whoops. Murky description there, wasn't it.
I guess the forum software doesn't allow me to go back and edit the post now. (is it a time limit, or the fact that there has been a reply to the post?)

That should have been something on the order of " Using the option to correct audio delay doubles the processing time."

I also should have included the following notes:

With DGIndex, you can set begin and end points, and process just that section. Good if you only want a 5-minute sequence. But doesn't play audio in preview mode.

With Rejig, you can select individual chapters (one or more) and process just those.
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Old 08. Jun 2009, 07:51 AM   #8 (permalink)
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I'd call it a toyp (!) rather than murkiness. You write very well.
Editing old posts is actually something that is rather controversial around here. (You can see what small lives we have.) I've argued strongly that writers should always have the write to edit or delete their own posts.
However, the MODS disagree because it spoils the thread (they say) and since they contain beautifully-sequenced posts which never stray off-topic ... they say "it will spoil them". I say they don't read the threads.
Nevermind. You can edit your own posts for a limited time, 20 mins? 60 mins? They keep changing the limit.
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