Need help creating DTS-ES Matrix or Discrete from DTS-HD MA tracks

[OldiesManiac]

After searching this section I could not find an answer to my problem, thus creating this thread with the hope to get the answer for this :

I have 8 speaker setup on a DENON AVR 3808 AMP with a popcorn hour C200 player. What I want to do is convert the DTS-HD MA to DTS-ES Matrix or Discrete and mux it wit the original video m2ts file so that I can enjoy sound from all 8 speakers.

I have a DTS-HD MA 5.1 audio source ripped from a Blu-ray.

Here is what I have done upto now:

Extract 6 waves from the DTSHD using eac3to.
eac3to input.dtshd out.wavs

Open the 6 waves files in DTS PRO Series encoder version 2.5.

The encode button does not get active as I think it requires a 7th audio file, which should be the Cs track.

Here is a screen capture from the soft:

DTS-ES Matrix
http://leetleech.org/images/84971797170224571304.png

DTS-ES Discrete
http://leetleech.org/images/58558390430092453140.png

My questions are:

How do I get this Cs track from the SR & SL tracks?

Is it enought to just mux these 2 tracks and extract the central channel and use it as the Cs track?

Warm thanks in advance for you help.

Kind regards

OM

[Gser]

6.1 wont give you 8 channels. If you mux SR & SL you will get stereo(or mono) not 3 channel hence it wont have a central channel. If your AMP can't convert it to 8 channel using it's own multi channel internal processing then I'd say forget it. Simply duplicating channels and/or dumb muxing 5.1 into 8 will only distort the surround effect - not enhance it (not to mention waste bit-rate).

[Skelsgard]

How do I get this Cs track from the SR & SL tracks?

Is it enought to just mux these 2 tracks and extract the central channel and use it as the Cs track?

That would be the only option.
At least for that program. IIRC, DTS Pro Series Encoder can encode just 6 channels to DTS-ES MAtrix (it ssumes you did the matrixing yourself) but DTS-HD Master Audio can't.
You can take SL and SR, mux them into a stereo file, then use CenterCutGUI to extract create a center-channel mono track and a side-channels stereo track.
But the receiver will duplicate this mono BC into RL and RR, as you can only put 7-ch in DTS-ES.
If you are gonna do this, then go Discrete. Matrix would be pointless as most receivers with DTS-ES also have DTS:NEO which can upmix to 6.1.

Edit: updating
Checking the specs for both products, the Denon is a DTS-HD decoder and the C200 can do DTS-HD audio passthrough.
So why use DTS-ES Discrete and not just create a new DTS-HD track with 7.1 channels?
Or why not just leave the track alone and use some of the many upmixing features the Denon has?

[OldiesManiac]

@Gser & Skelsgard

Thanks so much for your kind replies.
I've tested by CenterCutting a Cs channel and making a Matrix and a Discrete audio samples. Then Compared it to the native upmixing option of the DENON Amp. You are right, the best option to me is the native upmixing in the DENON which gives a clearer surround image, compare to the 2 DTS-ES "hand-made" options.

Regards

[ACrowley]

I use sony vegas or audacity to create a discrete Back Center Channel from SL,SR

Simply copy/mix both Channels into one Channel and export it to a mono wave. Then encode it to discrete 6.1