Audio Rip and conversion to WAV problems

[lcsneil]

Right, Newbie question and apologies if this is easy but here goes.

I am trying to rip the audio from a Classical DVD.

Having checked the DVD using VOBraptor (0.2 beta) I think I have established that along with the video there are two audio streams. A 24bit LPCM and a 6ch Digital DTS.

Now all I want is a WAV file for burning to CD for playing in the car.

So it seemed simple enough to use Smartripper (2.41) to rip the entire thing and set under 'Stream Processing' the [0xA0] Audio English LCPM 2ch 48KHz 24bit to demux to seperate file (rather than direct stream copy). ( also extracted full VOBs and used DVD2AVI with exactly the same result)

Sure enough I end up with a WAV file of about 1.1 GB on the hard drive.

(vts_01_([0xA0]_Audio_English_LPCM(2Ch)_48kHz_24bit__)_Delay_40ms .wav)

All well and good so far. Now the problem comes when I try to listen to it using something like real player or Windows Medi Player.
I get a file that is of duration 1h38mins (runnin gtime of DVD is approx 96mins) but the audio is like very loud 'white noise' and whenit starts, whirrs up like a vacuum cleaner! Oddly enough if I listen very closely in the background I can just about here some music but it IS a struggle to hear.

To check that it wasn't recorded like that I have played the track on my cheap and cheerfuul DVD player connected to 'telly' and select the LPCM track and its all fine.

In addition to make sure that I do have some idea what I'm doing I tried a different DVD which just had an AC3 track on it and extracted that and successfully converted it to a playable WAV file.

Has anyone any ideas please!

Ta.

Neil

(W2KSP3 - P600 BX440 chipset)

[dick_p_t]

Download a copy of DVD2AVI and then Rip the DVD to a VOB with both the video and the Audio track.

Open up the first VOB in DVD2AVI and you should see a list of all of the VOB's. now go into the AUDIO menu and select you preffes for decodeing the audio track and make sure you have 48 > 41 conversion ON. Low will do a fine job but if you can wait that extra time select Mid. Also make sure that you have it on Auto select the Type and set to Decode the tracks(PS: if the streem is Ex80 use "Track 1" in DVD2AVI, if the streem is Ex81 use "Track 2" ect ect)

now go into the FILE menu and select SAVE PROJECT this will run through and decode all you audo to a 44.1Khz Wav file ready for burning to CD.

Let me know how you get on with it.

Dick_p_t

[lcsneil]

OK tried that and got exactly the same result.

The only bit I wasnt sure about in your post was which track to select. You said "Also make sure that you have it on Auto select the Type and set to Decode the tracks(PS: if the streem is Ex80 use "Track 1" in DVD2AVI, if the streem is Ex81 use "Track 2" ect ect)
"

I set channel format to Auto and used track 1 (choices 1 -8) I'm not sure i understand where the Ex80 or Ex81 comes in.

The audio track I have labelled is 0xA0 (LPCM) and 0x89 (DTS)

If anyone wants to listen I have put a 10 second clip (converted to 128bit MP3 HERE its 140KB

So that didn't work :(

Neil

[dick_p_t]

OK try it again and make sure you rip the DTS track

in DVD2AVI you shouls select track 9 as the streem ID is 89
If you get a small wav file with no audio, try it on track 2 then track 3 untill you get it.

DVD2AVI should decode the DTS track and turn it into a wav for you

I hope =

[lcsneil]

OK the VOB contains both the DTS and the LPCM stream.

DVD2AVI only shows 8 possible tracks (no track 9) - tried all 8 tracks and only track 1 gives a file (PCM).

Now just a thought. This LPCM track is a 24bit track. Is Smartripper or DVD2AVI assumming it is a 16 it sample and repackaging it into 16 bits?

That would account for the white noise effect!

e.g. first sample bits 1-16, 2nd sample bits 17-24+1-8 etc

Any software that will output it in a .RAW format so that I can load it into something like CooleditPro in its extracted format rather than a repackaged 16 bit version

(Or am I barking up the wrong tree here?)

Neil

[dick_p_t]

Yes, i believe you may be right.

Grab youself a copy of "Cool Edit Pro v2"

That will open it up and convert it for you.

[lcsneil]

No that didn't work either

Cool Edit only seems to do 16 or 32 bit not 24

Any other ideas?