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VanJay2 · Posted: Tue Dec 02, 2003 3:57 pm Post subject: extract audio from DVD

Hi,

Is it possible to extract the audio from a DVD?

If so, how will the audio fare to the audio on the DVD? Will I get an exact replica?

Cheers,

Chris

frankm · Joined: 2003-04-01 Posts: 3396 Location: Wisconsin

You can try one of these links. It is much easier than it appears. Since this is ripping the audio NOT recording it through the soundcard the results should be right on. I've done it a few times and have had some remarkable results.

http://www.glump.net/archive/000049.php

http://www.glump.net/content/audio_dvd_rip/

This should only be done for personal listening and not for trading or EBay, but that should go without saying. I've ripped a couple DVDs to listen to the audio in my car or at work or what not but none of it is on my trade list.

This failed only once on me and then I recorded straight through my soundcard, which still turned out really pretty good.

I did not use their spreadsheet for the track markers I did those myself via EAC but can also be done with CDWave (I think it is CDWave).

VanJay2 · Posted: Tue Dec 02, 2003 5:34 pm Post subject: Re: extract audio from DVD

What software is it?

Looking at the page it appears to be a help guide.

Thanks for the help.

frankm · Joined: 2003-04-01 Posts: 3396 Location: Wisconsin

If I recall correctly there are two pieces of software, first, SmartRipper and then second HeadAChe. But the guide should have links to download both of those. Like I said it is a lot easier than it first appears.

guitard · Joined: 2001-12-01 Posts: 3412 Location: Seoul, South Korea

Keep in mind - the audio that you rip from a DVD using SmartRipper of DVD Decrypter is the .ac3 audio. .ac3 is a highly compresses format - not much different in size than an mp3 file.

As an example: I recently ripped the video and audio from a DVD so that I could reauthor it with menus.

The video portion was 3.177 gigs and the audio (.ac3) file was 90 megs.

Just as .wav files produced using .mp3 files are inherently inferior, so are .wav files sourced from .ac3 files.

Randy

frankm · Joined: 2003-04-01 Posts: 3396 Location: Wisconsin

Randy - You are absolutely correct but wouldn't the same issue arise regardless of how you ripped the audio ? I'm using the term rip loosely here, I mean even if you have a DVD Player with a digital out which you could run to the digital in of a stand alone CD Recorder . . . wouldn't that have the same issue ? I guess I'm assuming that the AC3 audio track is the only audio track.

ect5150 · Joined: 2002-08-04 Posts: 514 Location: Charlotte, NC

Quote: Originally posted by frankm:
Randy - You are absolutely correct but wouldn't the same issue arise regardless of how you ripped the audio ? I'm using the term rip loosely here, I mean even if you have a DVD Player with a digital out which you could run to the digital in of a stand alone CD Recorder . . . wouldn't that have the same issue ? I guess I'm assuming that the AC3 audio track is the only audio track. The thing to keep in mind is the original audio is not available on the DVD. Only a lossy compressed version of the original. That said, there is nothing that can ever be done to get past that fact, regardless of how it was ripped.

Speaking of ripping, I use SmartRipper, its great. And then there are a variety of programs that will yank the audio out.

Oh yeah... you shouldn't trade the audio portion of the show. Find the CD's that were made from the soundboard or from the original copy, and trade those. No one wants an imperfect copy. DVD's are only compressed because it'd be impossible to have that much video without MPEG. (although it is possible to make a DVD with lossless audio, the standard does support PCM data)

guitard · Joined: 2001-12-01 Posts: 3412 Location: Seoul, South Korea

Frank,

You got me on that one.

Having said that, I've never seen a DVD player with a digital out. Do you have one? I only have a low-end DVD player.

Randy

frankm · Joined: 2003-04-01 Posts: 3396 Location: Wisconsin

>I've never seen a DVD player with a digital out. Do you have one?

To be honest I'm not certain, I've never done it that way. I've always just thrown my DVD in my PC and ripped the audio that way. I know my Lazerdisc player has Optical Out, remember Lazerdiscs ?

I have primarily only done this with official releases and just for personal listening, none of it has ever been listed or traded. I have had some really nice results.

VHND · Joined: 2001-11-15 Posts: 15 Location: Melbourne, Australia

There are plenty of different ways to do this. Personally I used to use method 1 (below), but it was time consuming. Then a more automated method (dedicated software) came along.

Method 1
* Rip DVD with Smartripper (in "Movie mode), splitting by chapter so each song is its own file.
* Load each of these vob files one by one into DVD2AVI. This extracts the sound file (ac3 or pcm) and converts it to wav.
* Resample wav to 44.1 KHz and burn to CD!

Method 2
* Use dedicated software - DVD Audio Ripper! DVD AUdio Ripper

VanJay2 · Posted: Fri Dec 05, 2003 4:19 pm Post subject: Re: extract audio from DVD

Ok, maybe I need to clarify.

I'm looking for a perfect reproduction of the audio from a DVD. I don't want anything compressed or lossy. Is this possible?

If the audio is compressed on the DVD then that is fine. However, I don't want to compress it from the DVD to the audio.

The reason I am asking is I want to convert some DVD bootlegs I have to audio for future trading. These are rare and I have not been able to find them anywhere.

No VH, so don't get too excited, its just the following:

LA GUNS Banana Joes/Pittsburgh,Pa 6/21/00 80mins MAS/HI-8 EX+
SEBASTIAN BACH Grafitti Club/Pittsburgh,Pa 2/8/00 35mins MAS/HI-8 EX+(right balcony)
SEBASTIAN BACH Grafitti Club/Pittsburgh,Pa 2/8/00 85mins AUD EX+(left balcony)
UNION w Bruce Kulick and John Corabi/Banana Joes,Pittsburgh Pa 2000 70mins MAS/HI-8 EX+

These are all shows from Pittsburgh that I attended and they are from the master filmer. The left balcony Sebastian Bach show has been floating around for a while but I've not been able to get a copy from anyone who has it. Again, all the others are masters from the person I'm getting them from and I've never seen them anywhere else.

Thanks for the suggestions!

VanJay2 · Posted: Fri Dec 05, 2003 4:22 pm Post subject: Re: extract audio from DVD

Quote: Originally posted by VHND:
Method 2
* Use dedicated software - DVD Audio Ripper! DVD AUdio Ripper How does the wav compare to the audio of the DVD? Is it a lossless reproduction?

ron · Joined: 2001-11-06 Posts: 2981 Location: Wisconsin

Most DVD Audio is stored on disc using AC3 (Dolby Digital) compression. This is a lossy compression. (think about WAV->MP3)

When you extract the audio from the DVD, you end up with an AC3 file. You will need to convert this to WAV (program to so this unknown, just talking theory here).

Once in WAV format, I believe the audio is sampled at 48khz. If you want to put this onto CD, you will need to re-sample the audio to 44.1khz.

That's about as much as I know.... Good luck.

VanJay2 · Posted: Fri Dec 05, 2003 4:50 pm Post subject: Re: extract audio from DVD

Quote: Originally posted by Ron:
Most DVD Audio is stored on disc using AC3 (Dolby Digital) compression. This is a lossy compression. (think about WAV->MP3)
If thats the case, what is the big deal about DVD audio releases? :confused:

frankm · Joined: 2003-04-01 Posts: 3396 Location: Wisconsin

The big deal is this . . .

The audio is often available from more than one source. Think of it this way. A concert is broadcast on PayPerView with an accompanying radio broadcast. Someone could capture that PayPerView and encode it to DVD, at the same time someone could record the radio broadcast onto DAT. The person who captured the video encode to DVD is using a lossy audio compression. The person recording to DAT is not. The audio from the DAT to CDR would be better than the audio ripped from the DVD. What is being recommended for trading is getting the best possible copy. If the DVD extract is the best possible then so be it but often there is better out there.

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