Article: Lossless TrueHD Atmos Just Got Much Easier

[The Computer Audiophile]

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[The Computer Audiophile]

Just now, mlknez1 said:

Why is the Dolby Reference Player still required?  What is it doing?

It's the only way to decode TrueHD Atmos. MMH uses it int he background.

[The Computer Audiophile]

4 minutes ago, ted_b said:

Chris,

Great update, and thanks for giving Garry his props.  He's amazing with this stuff.

 

Question: what happens when you choose a layout that is greater (or less) than the source layout (i.e choosing 9.1.6 on a 7.1.4 recording; or choosing 5.1 on a 7.1.4 recording).  Does the latter have a fold-down done, and where are the rules of the fold-down happening?  Does the former simply have silent wide channels?

 

With Atmos there is no source or destination format. The decoder uses the speakers selction and creates the mix, exactly as it does using the decoder in a processor.  If sound is in the side channels in the original mix, but the playback is on a 5.1.4 system, the side channel sound is place on the side by using the front and rear channels, the same way items are placed between the front two channels in stereo.

 

 

[The Computer Audiophile]

Just now, jhwalker said:

I may be overlooking it, but is there a link to download this software?  Looking forward to giving it a try :)

 

 

https://reva.blob.core.windows.net/mmh/publish.htm

 

[The Computer Audiophile]

6 minutes ago, mlknez1 said:

What about http://cavern.sbence.hu/cavern/

 

That product cleverly uses terms, but only supports lossy Dolby Digital Plus. 

 

It says, "True Dolby Atmos with only a PC" but doesn't decode TrueHD.

[The Computer Audiophile]

@jrobbins50 you need to tell Garry to add 5.1.2 :~)

[The Computer Audiophile]

7 minutes ago, jrobbins50 said:

Oh my goodness, this would be a substantial time savings.  Yes, as you know, I do Dolby Atmos in 5.1.2 (which thus allows use of Roon for playback) and that isn't on Garry's list in the MMH update.  How do I contact him, Chris?

 

Also, I have MMH on my PC and the DRP on my Mac.  I don't recall, but will the DRP run on PC, as I assume the Mac alone doesn't have the horsepower for the decoding?  JCR

Just install DRP on your PC, then you're good. You don't even touch it. 

 

I'll tell Garry about your needs :~)

[The Computer Audiophile]

4 minutes ago, loop7 said:

I'm really curious where Atmos, in the home, will be in a decade.

It has been around for a decade now. 

[The Computer Audiophile]

1 minute ago, DigiPete said:

@The Computer Audiophile

Will MMH trick streaming services, or are we still stuck with disks & downloaded files?

I don’t understand the question. 

[The Computer Audiophile]

3 minutes ago, ted_b said:

I'm confused by this.  What can you do in Apple Music on the MAC? 

Play Atmos and output to DAC. All the other apps only play Atmos on mobile apps. 

[The Computer Audiophile]

2 minutes ago, ted_b said:

? If I have my projector on I play Atmos directly via the ATV4K box (and onscreen GUI).  Not a mobile app (although I can do same, without projector, using my iPhone as remote).  I'm not sure, again, what you mean.  Sorry for being dense.

Apple Music is the only app for desktops that plays Atmos.

[The Computer Audiophile]

1 hour ago, ted_b said:

I have no issue with Apple Music; I use it.  I am asking what is unique about it on the MAC platform.  @El Guapodescribed what he is doing, so I assume that this work flow is only available on the Apple Music app on MAC, not Apple Music on, say, Windows or elsewhere?

 

Apple Music only plays Atmos on Mac. The new WIndows version of the app can see the Atmos content but can't play it. 

 

I route it through Hang Loose Convolver for 65,000 tap convolution, then on to my Merging DAC. 

[The Computer Audiophile]

2 minutes ago, ted_b said:

For those few examples that could be included in all four tiers, could you rate an Atmos mix from:

- compressed DD+ version on Apple Music

- upsampled above example, via Mac and work flow, to your DAC

- TrueHD version

- raw DXD version

 

I don't care, use a 1-100 rating.  Nothing serious here, but would be great to understand nuances vs striking differences. 🙂

 

Nothing comes closed to a DXD 12 channel album. I don’t think it’s all about the fact that it’s DXD, but the fact that it isn’t “encoded” is huge. There are no changes to the audio. 
 

TrueHD is still fantastic and better than DD+ of course. I’ve yet to run it through HQP though. Guapo can comment on that. 

[The Computer Audiophile]

5 minutes ago, Frans Keylard said:

I have been using DVD Audio Extractor to rip Stereo/5.1/ATMOS tracks directly into my library. Looking at the cumbersome method(s) described above (with the MKV step) I am wondering if I did this wrong.

 

You’ve only got 8 channels. 

[The Computer Audiophile]

4 minutes ago, jrobbins50 said:

And I’m not sure that those eight channels correspond to Dolby Atmos 5.1.2. I made the same early mistake as well, thinking that such a rip would pull the Atmos metadata. I am nowadays believing that it does not, with DVDAE. JCR 

If they do correspond to 5.1.2, it would be by miracle only. The extraction tool has no clue about the speaker layout, and the height channels are in metadata. the extraction is likely a 7.1 FLAC extraction. 

[The Computer Audiophile]

9 minutes ago, Wine Doctor said:

As I understand it, the computer using MMH has to have a Dolby Atmos converter also on the same computer.  How does one obtain the Dolby Atmos converter?  Dolby indicates that the will only license their decoding software to professionals.

Thanks.

You need to purchase the Dolby Media Encoder, which includes the Reference Player. 

 

I purchased mine here - https://daleproaudio.com/products/dolby-media-encoder-client-processing-software-1-year-license