monks19 said:

Hi, does anybody here how to convert a DTS-HD MA 7.1 audio file into 8 WAVS (channels) files ? I tryed with eac3to and HD-DVD/Blu-Ray Stream Extractor as a GUI, but withtout success. All it does is only output 6 audio files instead of 8 (which is to total amount contained in a DTS-HD MA 7.1 audio file, if I'm not wrong).

Anyone can help me with this, please ?

Thanks to answer

Eac3to is probably the ideal decoder/encoder at this point.

Nero7 and Libav / ffmpeg are limited to 5.1 channel decoding.

Sonic may or may not output 6.1 channels depending on the source track. ArcSoft doesn't have any limitation, therefore it is the default decoder used.

So if you really need 7.1 you'll need a piece of commercial software called ArcSoft TotalMedia Theater.

Command line:  eac3to Input.dtshd Output.wavs

I'm not sure what your ultimate destination is, converting DTS-HD MA is probably best achieved by extracting the 'core' which is a DVD compatible DTS track (but 5.1).

Mind you if you are looking to turn this into Dolby Digital, you will need a Dolby Digital Plus encoder.  I'm sure they exist, but I haven't actually seen one yet.

A few options for Dolby Digital Plus ..... 2 of them are not cheap far as I can tell. 

:(

http://www.mainconcept.com/products/sdks/audio/dolby-digital-plus-pro.html

http://aften.sourceforge.net/

http://www.proharmonicinc.com/store/product.php?productid=16399