Ripping separate audio channels from a DVD - please help

[LeftHandedGuitarist]

Okay, I would really, really appreciate it if someone could help me here. I've been trying in vain for at least 2 weeks now to do this, and no matter what I try, or what advice I seek, I can't get it to work.

I have some DVD-A music discs which contain a few audio tracks - a PCM stereo one, a DTS 5.1 track and a DVD-Audio MLP 5.1 track. What I want to do is extract the separate channels from the DTS 5.1 track to separate WAV files, and then convert them to MP3. I am doing this for the purpose of transcribing the music.

For the life of me, I cannot figure out how to go about this. I have tried using Smartripper and DVDecrypter and some other programs, but none of them do what I want. When I try to extract (what I believe to be) just the DTS track for a song, I usually end up with a VOB file on my hard disk. I then have a go on the VOB file with BeSweet and try to extract it to 6 separate WAVs, but all I end up with are corrupted, unplayable files.

Now, in various posts here I have read that you are meant to end up with an AC3 file from which you extract the WAV files, but no program I have used so far has given me this result.

Could somebody here, please, PLEASE, give me a detailed step-by-step guide to getting this to work for me? Nobody else seems to have any trouble, why am I?!
Thank you in advance.

[Vejita-sama]

The VOB files are multiplex MPEG2 files containing: video (m2v), audio (ac3 or PCM) and subtitles. You want to de-mux (de-multiplex) them to generate a seperate audio file:

1. Run Smartripper
2. Click on the VTS of interest
3. Click on "Stream Processes"
4. Click on "Enable Stream Process"
5. Click on the audio stream of interest, then click demux
6. Optional - repeat for each stream of interest
7. Hit Run

This will demux the the audio stream. Remember you have to select the stream then hit demux for EACH stream, one at a time, it won't demux a stream unless you set it to.

[LeftHandedGuitarist]

I tried it again with my DVD-A disc, and it didn't work. When I tried the DTS track, I ended up with a DTS file that BeSweet wouldn't do anything with. When I tried the 2-channel PCM track, I ended up with a WAV file that contained only static.

Then I had a thought, and had a go at extracting the 5.1 track from one chapter of my Two Towers R2 DVD, and it worked fine! So I guess the problem is with the DVDs I've been trying up to this point. They've all had DTS tracks that I've been trying with, while the Two Towers DVD had a DD5.1 track. I guess the problem could lie there.

[andydd]

I think that you wont get any program to work coz Smartripper, etc breaks the CSS encryption used on DVD-VIDEO discs, DVD AUDIO uses a new type of encyption (they spent a long time developing it after CSS was broken so easily) and is at the moment unbroken, what this basically means is you cant copy a DVD-A disc, although of course you could play it n use something like Total Recorder to record the audio but you only get CD quality not DVD-A quality.

[LeftHandedGuitarist]

Can Total Recorder save a multi-channel audio track then? I've looked at the website and it doesn't mention anything about that. Is there any other way to do this through analogue and choose which speaker I want to record sound from?

I know it's possible to do it digitally through DVD-A discs because I've downloaded files from other people who have done it. There's a guide to the process they used here, but it doesn't make much sense to me.

[SaSi]

I'm doing some guesswork here, but:

There are some multi-channel sound cards that can record multiple tracks at the same time - instead of the plain stereo the normal ones can. If you could get hold of one of these, you could use a program like Cooledit PRO (now called Adobe Audition) to record a multi-track session.

Another option could be - if your sound card or on-board audio has it - to use an SPDIF fibre cable to connect the DVD-Audio player with the sound card and record. Again you need a program that can record multi-tracks.

If you are able to receive multi-tracks on the PC one way or another, and you don't have a multi-track enabled recording application, perhaps you could record two channels at a time until you get what you want.

A final guesswork is: Is there a program that can play DVD-Audio on a PC? If there is, it might offer the flexibility to decide which channels to playback. In that case you end up with an easier setup to record the audio.

By the way, CoolEdit Pro is able to record at a high sampling rate so if the sound card also allows it, you can record at pretty high quality - although your plans to convert to MP3 make the ultra high quality irrelevant.

Perhaps it's time for me, also, to start experimenting with DVD-Audio.

[andydd]

Well..First of all the guide you linked to is about DTS-CDs they are not DVD Audio discs, they are just CDs but using DTS audio. DTS CDs dont have encryption, DVD audio discs do.

No Total Recorder cant record multi channel sound only stereo.

I guess you could record your multi-channel sound by.....

Playing through a DVD player or decoder amp that has a built in decoder. (ie splits it into 6 phonos) and then feeding the channel(s) individually into your PC and then recording them. A bit fiddly but eventually you would have the six seperate channels,.

[LeftHandedGuitarist]

I believe the problem here is that I can't rip any DTS track. I've tried it on both DVD-A and normal DVDs - I can rip and convert DD5.1, but not DTS. I'm using Azid to do the conversion to WAV, but it brings up an error message saying that it doesn't have the right filter and there's DLL files missing? What's that all about then?

[Dr_Layne]

AFAIK there's no DTS to WAV software available. Only Dolby Digital to Wav.

Steve

[LeftHandedGuitarist]

Well, there is DTS2WAV! Unless that does something else entirely.