DTS DCH Driver for Realtek HDA [DTS:X APO4 + DTS Interactive]

[Ferather]

It will be easy to see if he's using my files, I would download it to find out but it contains @*£!#
To be fair its not too hard to work out what I did if you know what to do.

 

[AudiophiIe]

i downloaded the latest apo driver and extracted the .dll's

APO4x

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[Ferather]

Originals, not unlocked.

 

[AudiophiIe]

It will be easy to see if he's using my files, I would download it to find out but it contains @*£!#
To be fair its not too hard to work out what I did if you know what to do.

wait oh do you already use this versions?
thought it would be an update , because its changed in apo driver 31/01/2022

 

[Ferather]

I get my source files from Asus directly, they throw out updates like there's no tomorrow, I always have the current DTS files

 

[AudiophiIe]

sorry didn't want to cause confusion
then everything is fine

 

[Ferather]

Nothing to apologize for, simple case of two angles on the subject, keep being helpful don't stop.

 

[AudiophiIe]

that's right hehe, with pleasure

 

[Gustavo Sicha]

that's right hehe, with pleasure

I came to see the spicy comments but it seems that it has calmed down xD

 

[AudiophiIe]

it wasn't meant badly at all

 

[Bryan Ü]

What do you guys think...

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[ajf64]

Currently I have Z906, which only supports 2 channel PCM, DTS Surround, Dolby Digital Live!, this has nothing to do with SPDIF hardware limits.
Directly, there is no upgrade, and my Realtek SPDIF can send all encoded formats (even ones Z906 doesn't support).

I only gain multichannel PCM, and only because OEM's are still catching up to SPDIF's full potential.

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HDMI audio is 37mbps max, SPDIF + TOSLink 2.0 is 125mbps max, optical is more responsive than conductive circuit, and immune to EMI RFI.
Even the distance TOSLink does 125mbps is futher than HDMI can do 37mbps, There is also optical SMI @ 250mbps.

For audio only, the video feed the GPU has to make is wasted overhead, no advantages to HDMI.

In terms of Windows, neither SPDIF nor HDMI are properly supported, and the EDID is unused mostly.

View attachment 234613

SMI Optical Interconnects | TTI, Inc.

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As a side note, now that OEM's now how to implement the hardware for HDMI to do it's max 8 x 192k (1,536k), 37mbps.
They can put the same PCM hardware on SPDIF, it can even be done via HDMI + TOSLink 2.0, no SPDIF.

I suggest SPDIF, because at the lowest level (consumer), it supports 15 channels.

I can send my Z906 6 channel PCM via HDMI to TOSLink, it plays the 2 channels it was programmed to just fine.

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Now in terms of Windows, my ALC supports quite a few different samples on SPDIF (not the full range though).
Windows fails to show various sample rates, and does not even have a playback test file for 192k.

Windows also has no way to configure the final number of channels on SPDIF.

View attachment 234616View attachment 234618

The G in image 1 is a typo. Here is a slightly older spec JIS F05 cable.

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@ajf64, I updated, changed the .inf files in the latest package, reducing file registrations and improving total response.
The current package has only 1 DTS bug (bass boost) for stereo, none for multichannel and Interactive.

On some devices you might get a power pop with 'Stereo Mix' after a shutdown, even when muted and volume 0.
I am using E-APO to upmix stereo, I also set 'Stereo Mix' to -80 dB, fixing the pop. This is driver related.

View attachment 234619

o this is cool what is the diffrence between dtsx:E1 and E2 and so DTSX:hometheater shows up but every time i select it it kicks back to interactive once i close the settings opens the store page every time i select hometheater even tho i have have the app and a licence i can test it fine it works just wont stick for some some reason might be somthing to do with sound unbound app still not seeing spdif as hdmi cuz you cant activate hometheater in the dts app only shows up in control panel you can set it test it and works great but then when you close settings it reverts back all the other formats seem to be working great and passthrough with no issues

 

[Ferather]

You will need to switch SPDIF to stereo using 'DTS Settings', in order to remove the Interactive APO.

1. Open 'FX Config' and select SPDIF, then on the right, press copy GUID.
2. Right click 'Stereo.reg', and replace BOTH {DEVICE-ID} with the copy.
3. Disable SPDIF, via sound settings, then apply the .reg.
4. Enable SPDIF via sound settings.

 

[ajf64]

You will need to switch SPDIF to stereo using 'DTS Settings', in order to remove the Interactive APO.

1. Open 'FX Config' and select SPDIF, then on the right, press copy GUID.
2. Right click 'Stereo.reg', and replace BOTH {DEVICE-ID} with the copy.
3. Disable SPDIF, via sound settings, then apply the .reg.
4. Enable SPDIF via sound settings.

do you have a link to that app again and ill try it now also so your saying i have to revert to stereo to get homtheater to work so is home theater true multichannel or just an upmix?

 

[Ferather]

Its inside the DTS DCH package, inside Tools. DTS Settings is in the settings folder of the driver download, post 1.

 

[ajf64]

Its inside the DTS DCH package, inside Tools. DTS Settings is in the settings folder of the driver download, post 1.

woops idk how i forgot that im sorry one other question so your saying i have to revert to stereo to get homtheater to work so is home theater true multichannel or just an upmix?

 

[Ferather]

When you select Interactive it sets SPDIF to multichannel processing, I would guess Atmos HT and DTS:X HT do the same.

 

[ajf64]

When you select Interactive it sets SPDIF to multichannel processing, I would guess Atmos HT and DTS:X HT do the same.

ah ok where is stereo.reg i have not seen that one

 

[Ferather]

DTS Settings

MediaFire is a simple to use free service that lets you put all your photos, documents, music, and video in a single place so you can access them anywhere and share them everywhere.

www.mediafire.com

 

[ajf64]

DTS Settings

MediaFire is a simple to use free service that lets you put all your photos, documents, music, and video in a single place so you can access them anywhere and share them everywhere.

www.mediafire.com

ok so i did all that but home theater still wont stick everytime i close it kicks back to 2 channel store page also still comes up every time i try to activate it

 

[Ferather]

I don't have Win11, but on Win10, on SPDIF, if I select Atmos it sticks. So there must be an issue somewhere.

Do you have time for TeamViewer? in say 20 minutes?

 

[ajf64]

I don't have Win11, but on Win10, on SPDIF, if I select Atmos it sticks. So there must be an issue somewhere.

Do you have time for TeamViewer? in say 20 minutes

ya we can do that do you have discord

 

[Ferather]

Of course, message sent.

 

[ajf64]

Of course, message sent.

great i responed

 

[Ferather]

Update on above (sorry a little late):

The issue is unresolved, however I will be investigating and possibly will be sending emails to certain companies.
However, instead I delivered the next best thing, a fully working Interactive:X, with E-APO upmixing.

If you have a SPDIF or HDMI receiver that supports 'DTS Audio' or 'DTS-HD', you can use this package.
If you have HDMI that supports DTS:X, make sure the receiver is set to passthrough.

Interactive:X - A combination of DTS:X Ultra multichannel + DTS Interactive (5.1 HW, 7.1 Virtual).

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Windows 10 Atmos test, note there is no DTS:X HT on Win10:

Dolby Atmos - SPDIF

Watch "Dolby Atmos - SPDIF" on Streamable.

streamable.com

On Win11, ajf64 got format not supported with Atmos.

====

Here is something I have sat on for a while, but have not said anything until now.

Either Microsoft is very dumb with SPDIF, and even HDMI for that matter when it comes to DirectSound, or companies like DTS-Dolby don't like the fact it pretty much takes them out.
Given that SPDIF is capable of 15 PCM channels @ 192k, at the lowest end (consumer), with TOSLink 2.0 @ 125Mbit/s max. Currently you only need 25Mbit/s.

The slowest TOSLink 2.0 module is 20Mbit/s, which covers all formats, including most of DTS-HD MA (24.5mbps), which is rarely that size.


Wikipedia claim that: "IEC 61937-3: defines how to transmit Dolby Digital (AC-3) and Dolby Digital Plus (E-AC-3) bitstreams via an IEC 60958/61937 (S/PDIF) interface".
And then later: "However, the S/PDIF interface has insufficient bandwidth to transport Dolby Digital Plus (E-AC-3) bitstreams at the 3.0Mbit/s data rate specified by HD DVD".

According to Wikipedia, HD-DVD was released in 2006, and yet I can find info on TOSLink @ 125mbps from 2008, only 2 years later (here and here).
HDMI ARC, which came out in 2009, has a maximum bitrate of 1Mbit/s, eARC (2018) and HDMI-DiplayPort are 37Mbit/s.

Also note, SPDIF has no set bitrate, and its set by the hardware that is used, 125Mbit/s is roughly equal to 27 x 192k.

Can anyone name an operating system, HDMI version and GPU that does 11.1 PCM @ 192k?

Realtek 889 PCM is capable of the following:

PCM bitrate: 9.216 Mbit/s @ 192 kHz
Audio channels: 2
Number of audio programs per bitstream: 2
Sample rate: 32, 44.1, 48, 88.2, 96 or 192 kHz

Dolby Digital Plus is capable of the following:

Coded bitrate: 0.032 to 6.144 Mbit/s
Audio channels: 1.0 to 15.1
Number of audio programs per bitstream: 8
Sample rate: 32, 44.1 or 48 kHz



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A man walks into an AV shop, and asks for a good SPDIF device to go along with his TOSLink cable that specifies all formats supported and runs at 125 Mbps, that he just purchased.

Sales man: No sorry sir, I dictate you cannot use SPDIF, because I quote "It does have the bitrate for lossless formats." I can sell you HDMI which runs at 37 Mbps.
Customer: WTF! How am I meant to get 12 channels (11.1) in PCM @ 192k (55.3 Mbps) with only 37 Mbps?
Sales man: I can sell you some multichannel spatial tech, which requires specific hardware and a license, or you can use digital encoding + license.
Customer: Double WTF!

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@ajf64, with Win11 on SPDIF, with the added formats, if I select either DTS:X HT or Atmos HT, in both cases the store opens on the app.
I don't get the 'format not supported' error that you do, so I believe there is an issue with Windows it's self.

I have forgotten if the install was an update from 10, a fresh Win11 might be needed.
I will continue to look into DTS:X HT on SPDIF, another few posts here.

You can tell the license based restriction has been intentionally programmed, because SPDIF does not have DTS-HD normally, and will not show DTS:X HT.
The same can be said for DTS:X Ultra, and if I remember correctly, the Sound Unbound decoders, they don't work on SPDIF, by programming.

Again you can tell the programming is intentional, as any driver with DTS:X Ultra, never has it on SPDIF, and its denied if you try.
The PCM portion of SPDIF is no different to Speakers or HDMI, PCM is PCM, APO's are PCM processors.