How to AOB [DTS] -> DTS [WAV] ?

[GaBBa-Gandalf]

Hello guys...

I have some DVD-Audio discs .. They're AOB files on it...
I would like to back this things up on my htpc...

The only way what works is by using the tool "DVD Audio Extractor" with the option "Direct Demux"...
So I got *.dts files. They work perfectly and my receiver shows the dts light ;-)
The only thing what I don't understand is that the size of this files is kind of small... Is that normal?

I'm now looking for the way to create a wav file with that dts sound.
It should be the "digital" solution (maybe it is the LPCM version?). I mean the kind of file which u get from a normal player - just noise (signal)...

Unfortunately I don't know how I can create this kind of file...

Could u help me.... ?

GaBBa

[Midzuki]

If you want to get "the real thing", you'll need DVDAExplorer:

http://www.videohelp.com/tools/DVD-Audio_Explorer

Also:

ShaPLAY
( http://www.videohelp.com/tools/ShaPLAY )

and manisiutkin's DVDA plugin for foobar2000
( http://sourceforge.net/projects/dvdadecoder/ )

HTH.

[GaBBa-Gandalf]

Thank you for this information...
I tried "DVD A Explorer" and it works pretty good so far.
I'm just wondering why the size of the wav file is about 300 - 400 mb and the *.dts file is about 30 mb...
The quality sounds the same... Is it because the dts file is extremly compressed?

And which program should I use for the wav file... I always get stereo out...

[Midzuki]

Are you sure you have read the file named

"DVD-Audio Explorer User Manual.html" ???

Anyway, DVD-Audio has nothing to do with DTS
(except for the contents in the VIDEO_TS folder, perhaps).
And yes, DTS is a type of lossy compression, which means it
always will sound worse than the original lossless audio source
(even if you ears cannot notice the difference).

At last, what are your plans for the DTS files created by "DVD Audio Extractor" ??? :confused:

[GaBBa-Gandalf]

I have some DVD-Audio dics where I can not covert to wav...
It shows the message: MLP decoder failed during extraction...
So I just used the option "store" and got the MLP files.
But how can I play them?

[Midzuki]

I have some DVD-Audio dics where I can not covert to wav...
It shows the message: MLP decoder failed during extraction...

:(

So I just used the option "store" and got the MLP files.
But how can I play them?

Foobar2000 +

http://sourceforge.net/projects/dvdadecoder/

OR

Winamp + its MLP plugin

Hope this helps.

[GaBBa-Gandalf]

With foorbar I get the message:
INFO (CORE) : startup time: 19563 ms
ERROR (CORE) : Failed to load DLL: foo_input_dvda.dll, reason: Unable to load DLL.

And with Winamp + MLP plugin it doesn't work :(

Now 2 of all my dvd-audio from REM don't work...

Edit:

Now It works with foorbar + plugin.
I converted the dvd-audio to a wav + cue. Now i can't mount that cue, because DD-tools shows the message can't bind cause the file is not in pcm format ?!

[Blue_MiSfit]

I'd suggest transcoding the MLP to something easier / more widely supported, like FLAC, or LC-AAC at high bitrate.

eac3to is a great tool for this task

~MiSfit

[GaBBa-Gandalf]

Thank u for that information...
I create a 5.1flac file from MLP with eac3to

The only thing is that every player plays it on my htpc but at my receiver (spdif) just comes stereo out, instead of 5.1 sound...

I will become crazy with all that stuff....

[NanoBot]

Hi,

SPDIF can only transfer ac3, dts or LPCM stereo signals. Everything else like multichannel flac, TrueHD, DTS-MA etc. can't be transfered through a spdif connection, because the bandwidth of the spdif connection is to small for those newer formats. There are four possible solutions:

If your receiver has at least one analog 5.1 input ( via six RCA jacks ) and your computer has a 5.1 capable sound card, you may connect the PC to your receiver using three cables with a 3,5mm stereo plug on one side ( PC ) and two RCA connectors on the other side. In this case the PC will decode the 5.1 flac to six seperate channels, and the receiver will play them via the analog connection.

The second solution would be to use ffdshow. It is able to decode the 5.1 flac and to reencode it on-the-fly into a 5.1 ac3 signal, which can be transfered through your spdif connection. The disadvantage in this solution is that ac3 is a lossy compression format, so you would loose quality when using this method.

The third solution is possible if your PCs graphic card is equipped with a HDMI output which is capable to transfer at least six LPCM channels through HDMI, like the newest ATI or NVidia cards, and the receiver has an HDMI input. In this case the PC will decode the flac to seperate LPCM channels, which are then transfered to the receiver through the HDMI connection. This method is lossless.

The last solution is only available on very few motherboards and soundcards. Some motherboards, like my Gigabyte P35-DS4, are equipped with a Realtek soundchip which is able to do a realtime DTS encode. This feature is called "DTS connect" or "DTS interactive". In this case the PC will decode the 5.1 flac to six seperate LPCM channels, which are on-the-fly reencoded to DTS 1536. Due to the patent fees involved if such solution is used, only a few mainboards provide this feature. Nevertheless, since DTS is also a lossy compression, you will also loose quality when using this method.

C.U. NanoBot

[GaBBa-Gandalf]

Thanks for that information... I didn't know that yet..

I could use it through HDMI - I have a nvidia9400 and a denon AVR-2309...

So, it seems to be there isn't a good solution to get all my REM DVD-Audio on my HTPC.. So that I don't always have to use the discs... The only way which worked good for me was to use DVD Audio Extractor to create *.dts files...

Unfortunately 2 discs don't work with that method...

But thanks for helping me...

[NanoBot]

Hi again,

as far as I can see on the website of denon, the AVR-2309 has HDMI inputs, so everything should be fine on the receivers side. But I don't know if you own a discrete graphics adapter with a 9400 GPU, or if you have a mainboard with an onboard 9400 GPU ?

I know for sure that the onboard version of the 9400 offers 2, 6 or 8 channel LPCM sound through the HDMI output. Contrariwise the 9400 variant used on discrete graphic cards is afaik not able to transfer LPCM signals via DVI / HDMI. Instead, depending on the manufactorer of the card, there might be the possibility to passthrough the spdif signal from the soundcard / soundchip used in the computer to the DVI output, but this would not help you.

The "smallest" discrete Nvidia card with is able to output 2, 6 or 8 channel LPCM via HDMI is the Geforce 210. But if you are thinking about replacing the graphics card, I would recommend to get at least a GT220. The GT220 has IIRC 48 shader units while the the 210 only has 16 shaders. And the number of shader units would be important to get a good temporal adaptive deinterlacing on HD videos if you want to playback such videos on your PC.

C.U. NanoBot