Comments on: DVD Audio Extraction

By: Carlton Bale

Carlton Bale — Fri, 24 Apr 2009 14:25:09 +0000

Phil, this method works for de-muxing the audio file from the DVD video. You'll need a different program to convert the ac3 audio to a standard format, and I'm not sure what software supports that.

By: Phil

Phil — Wed, 22 Apr 2009 20:43:46 +0000

Carlton, Does this method work with DVD's that have AC3 2 channel audio rather than the LPCM

By: Phil

Phil — Fri, 03 Apr 2009 14:14:36 +0000

That's what I've been doing as well. It would be nice if someone could develop a nice GUI or work with the multifrontend program to add this program to it. Thanks for the quick response.

By: Carlton Bale

Carlton Bale — Fri, 03 Apr 2009 13:43:11 +0000

Phil, unfortunately, I've haven't found a way to automate the process. I just hit the "up arrow" key to bring up the previous command in the command prompt, edit it, and hit enter to get it to run again.

It is possible to drag a file and drop it on an executable from within Windows File Explorer, but lpcm24.exe requires that an output file name be specified, so I don't believe this method works in this case.

By: Phil

Phil — Fri, 03 Apr 2009 02:46:13 +0000

Carlton I've been using the lpcm24 program. It's been working great. The one issue I have is the command line for multiple files. I convert a file, then type in the next file, etc. What is the best way to convert multiple files from raw to wav instead of having to type each file name after each conversion. Is there a batch mode syntax for the command line? As always thanks so much for your help.

By: Carlton Bale

Carlton Bale — Mon, 19 Jan 2009 14:11:43 +0000

Phil: You have 2 options. If you want a standard file that is playable by any music application, convert it to a 16-bit, 44.1 kHz wav file. If you want to play by the high-definition original, you'll need a software player that can send the original 24-bit, 96 kHz file out the digital output of your computer to a receiver that can decode at that bit rate.

For simplicity, I think the down-conversion to a lower fidelity is worth more than the hassles of trying to play back the original audio stream.

By: Phil

Phil — Sun, 18 Jan 2009 21:07:02 +0000

I should probably mention that I ripped the VOB files using DVDfab5.

By: Phil

Phil — Sun, 18 Jan 2009 21:05:38 +0000

Thanks Carlton, that did the trick. My next question is now that I have converted the raw files to wav using the following command:

lpcm24.exe "home2_V01C02.raw" "home2_V01C02.wav"

I get a 24bit/96KHz file. The playback is very fast (unrecognizable). If I use the following command:

lpcm24.exe -44.1 "home2_V01C02.raw" "home2_V01C02.wav"

I get a 24 bit/48KHz file. The playback is still fast, but it is inteligible. What should I be troubleshooting? I've ripped the VOB files correctly. I followed the directions very closely above. I've tried to use the following command but it gave me an invalid argument error.

lpcm24.exe -44.1 "home2_V01C02.raw" "home23_V01C02.wav"

Again, thanks for your help so far.

By: Carlton Bale

Carlton Bale — Sun, 18 Jan 2009 17:38:27 +0000

Phil, you use the cd (change directory) command to change directories. Put quotes around the file/directory name if it contains spaces. So for example:

cd "cd:\documents and settings\username\desktop\dvd audio"
lpcm24.exe "input file name.raw" "output file name.wav"

It's much easier if you put the lpcm24.exe in the same directory as the music files being converted.

By: Phil

Phil — Sun, 18 Jan 2009 01:56:26 +0000

This site is great. I have a question about step 4. I'm new to using the command line. Can you walk me through this. I have my LPCM tracks in a folder on my desktop. I'm having some issues with this step:

* Open a Command Prompt window and change to that directory.

I'm not sure how to do that. I can open the command line, but I'm not sure how to change directories. If I type in the file path to the folder with my LPCM tracks I get something like not a recognized command. I'm not sure how to run prgrams using the command line so the next step stumps me as well. If I I type the command line below with my file name inserted i get the same message as above….not recognized command. Any help you can provide would be great.

* Run LPCM24 by entering:

lpcm24.exe input_file_name.raw output_file_name.wav

Do I have to enter all of the file names manually, or is there a better way. By the way the CD Audio extraction is fantastic. I've been using this for some time since I found your instructions.

By: Carlton Bale

Carlton Bale — Sun, 02 Dec 2007 22:15:10 +0000

I posted about this on their forum. Their RAW codec does not support the RAW data from a DVD. I should have updated this page but have not. You'll need to use the LPCM24 24-bit raw stream processor from http://www.rarewares.org/others.html . It's a command-line program, but it will properly perform the conversion.

By: Alan

Alan — Sun, 02 Dec 2007 21:00:04 +0000

Great set of instructions but: I have been able to follow them up to step 4. Even though I have downloaded and installed the .raw decoder, dbPower does not seem to recognize the .raw format. I got the .raw decoder from the legacy codec page, is there a newer version that I should have found. Thanks in Advance

By: Roberto

Roberto — Sat, 25 Aug 2007 17:06:25 +0000

i hope it works!!!