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

MxPhenom 216

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I googled "abstract space 2k", I seem to have to one without watermark.
Ah, I managed to find the same one in 4k as soon as I asked
 
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work properly with dolby atmos for headphone (yes i buy it this one)
 

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zais

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this settings seems helps
 

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I will do a little more tweaking on the preset next update, stereo seems to be where its needed and spatial sounds clean and clear.
For 5.1 upmixing I am using E-APO, and have now set the LFE adjustment to -4.80 which I find better.

I found some settings that are directly for multichannel mode, hence some tweaks.

----

If you feel that any of the modes needs more improvements let me know, for example: Headphones - Movies, too much bass.
 

zais

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y or can it be 7.1 without reverb so easy to be stereo? small/large speaker settings? any update i can try? for e apo
 
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Slightly confused as to what you mean, I dont think E-APO has speaker size settings, the DTS preset does though.
You can use multichannel mode with stereo, but it will downmix the extra channels to 2.

You can edit the registry to tell Windows to process say 8 channels for stereo.
 
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I googled "abstract space 2k", I seem to have to one without watermark.
lol i got that same theme great minds think alike :)
 

zais

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pls allow me to share for wallaper quite nice on dark mode
 

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DTS DCH 6.0.9215.1 (Signed)

Features: DTS:X Ultra, DTS Headphones:X v2, DTS Interactive:X (APO4).

Main directory: https://www.mediafire.com/folder/9yrokjhyh2slx/DTS_DCH_Drivers
Apps: https://www.mediafire.com/folder/tk7ola8b5j6xt/DTS_UWP_Appx

To install-update the drivers, right click uninstall the device in 'device manager', tick 'delete driver', pnputil to remove the extension (see here).
In 'device manager' again, in 'system devices' disable 'High Definition Audio', I have two and its the first one, restart*, install, enable.

* Make sure you run CCleaner registry cleaner a few times, and remove any apps before restarting.

System Devices.png

----

See '\TOOLS\' for extra steps to unlock more features, settings, via the Realtek policy editor (RTK Device Tool.txt).
Enable 'Stereo Mix', mute the stream, then set it to play to the device, to keep the encoder always on.

----

Known issues: Some digital output devices are not detected properly with Ultra when in stereo output mode.
Workaround: Switch to speakers-headphones then back each startup (or use VB cable, other).

Some VPN's software may block the APO4 service, and need configuring.

----

https://ibb.co/ZG3cC4S | https://ibb.co/L0gD9Q7 | https://ibb.co/477T74G | https://ibb.co/MVgzT5s

----

DTS settings can be used to setup another device, or set SPDIF to stereo mode.

https://ibb.co/bW0y3cG | https://ibb.co/CmLK7KR | https://ibb.co/0QZFqbc

====

Update + Improvements for stereo.

Enjoy ALC Pro DTS:X Edition.
 
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So I am taking a short break, there is nothing to do but tune the preset.xml (feel free to do so your self).

The spatial modes for movies and games is not as good as it should be, so hopefully a DTS update fixes it. I will be tuning the movie and game modes further soon.
Normally the internal Ultra spatial engine is near enough turned off, forcing you to use Sound Unbound, which is a different engine.

The quality of the Sound Unbound engine is better, which is most likely the reason the internal is almost muted.
In some cases, on lower powered machines, Sound Unbound can be a problem.

----

Has anyone tried the DTS:X Home Theatre feature you get with the new Sound Unbound on Win11?
 
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So I am taking a short break, there is nothing to do but tune the preset.xml (feel free to do so your self).

The spatial modes for movies and games is not as good as it should be, so hopefully a DTS update fixes it. I will be tuning the movie and game modes further soon.
Normally the internal Ultra spatial engine is near enough turned off, forcing you to use Sound Unbound, which is a different engine.

The quality of the Sound Unbound engine is better, which is most likely the reason the internal is almost muted.
In some cases, on lower powered machines, Sound Unbound can be a problem.

----

Has anyone tried the DTS:X Home Theatre feature you get with the new Sound Unbound on Win11?
To answer to the last question, the Home Theatre feature still doesn't work and is, for the moment, only cosmetic.

Anyway, thanks for keeping this project Always UP to date !

Rest well and do whatever you want ^^
 
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How to build-tune your own preset

Requirements: Notepad, or better still Programmers Notepad 2 or Notepad++ | DTS Preset Updater or DTS Preset [Ferather] (updated).

If you are using the preset updater, place all your chosen preset files into the 'APO4x' folder, inside the 'Updater' folder.
The installer will delete all pre-existing preset files, install the new ones, and clear the DTS data (reset).

You can edit the preset.xml to meet your needs, in my case I enable SFX, which by default I turn off, as it causes a delay with stereo.
With multichannel, and stereo with E-APO set as pre-mix (SFX), this is not an issue, no delay and with extra processing.

1.png

You can edit the xml as much as you like, and change files.

Channel config: Off, Any, Stereo, 5.1, 7.1, 11.1.

====

DTS_SFX_CLSID = "{07531B73-E4CA-4B94-9D0E-D3C9A7825FE5}"
DTS_MFX_CLSID = "{FCDD3010-BB3F-4B24-8074-A18FC7D558F7}"
DTS_EFX_CLSID = "{599C2638-CC15-4FFE-B16A-9246260D2DF7}"
DTS_EFX_51_CLSID = "{1AAB27FA-5B3E-4CB1-9312-C66BD74FE739}"
DTS_OSFX_CLSID = "{3B909255-8E8D-4997-8F8B-4C557F774D5F}"
DTS_OMFX_CLSID = "{27AFD1DB-3891-43EF-9888-CD558127FD42}"

Use FX Config if you want to re-program FX points.

====

Please note, I don't make DTS technology, DTS do, please buy a license.

====

SFX (Stream effects), pre-mixer: Usually channel data and channel changes, such as downmixing, upmixing, detection.
MFX (Mode effects), post-mixer: Usually audio enhancing, recovery, spatial, bass, treble, EQ's, and so on.
EFX (End effects), post-mfx: Additional enhancements and final formatting, such as DDL or DTS.

Most screen recorders and loopbacks will only record after SFX, no MFX or EFX.

If the screen recorder did EFX, it would end up with DTS Surround encoded audio and not work on SPDIF.
 
Last edited:
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How to build-tune your own preset

Requirements: Notepad, or better still Programmers Notepad 2 or Notepad++ | DTS Preset Updater or DTS Preset [Ferather] (updated).

If you are using the preset updater, place all your chosen preset files into the 'APO4x' folder, inside the 'Updater' folder.
The installer will delete all pre-existing preset files, install the new ones, and clear the DTS data (reset).

You can edit the preset.xml to meet your needs, in my case I enable SFX, which by default I turn off, as it causes a delay with stereo.
With multichannel, and stereo with E-APO set as pre-mix (SFX), this is not an issue, no delay and with extra processing.

View attachment 215265

You can edit the xml as much as you like, and change files.

Channel config: Off, Any, Stereo, 5.1, 7.1, 11.1.

====

DTS_SFX_CLSID = "{07531B73-E4CA-4B94-9D0E-D3C9A7825FE5}"
DTS_MFX_CLSID = "{FCDD3010-BB3F-4B24-8074-A18FC7D558F7}"
DTS_EFX_CLSID = "{599C2638-CC15-4FFE-B16A-9246260D2DF7}"
DTS_EFX_51_CLSID = "{1AAB27FA-5B3E-4CB1-9312-C66BD74FE739}"
DTS_OSFX_CLSID = "{3B909255-8E8D-4997-8F8B-4C557F774D5F}"
DTS_OMFX_CLSID = "{27AFD1DB-3891-43EF-9888-CD558127FD42}"

Use FX Config if you want to re-program FX points.

====

Please note, I don't make DTS technology, DTS do, please buy a license.

====

SFX (Stream effects), pre-mixer: Usually channel data and channel changes, such as downmixing, upmixing, detection.
MFX (Mode effects), post-mixer: Usually audio enhancing, recovery, spatial, bass, treble, EQ's, and so on.
EFX (End effects), post-mfx: Additional enhancements and final formatting, such as DDL or DTS.

Most screen recorders and loopbacks will only record after SFX, no MFX or EFX.

If the screen recorder did EFX, it would end up with DTS Surround encoded audio and not work on SPDIF.
How to configure 11.1
 
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Should be:

input="11.1 Surround" output="11.1 Surround">

====

{DEVICE-ID}\Properties

Stereo:

"{1da5d803-d492-4edd-8c23-e0c0ffee7f0e},3"=dword:00000003
"{1da5d803-d492-4edd-8c23-e0c0ffee7f0e},6"=dword:00000003

5.1:

"{1da5d803-d492-4edd-8c23-e0c0ffee7f0e},3"=dword:0000003f
"{1da5d803-d492-4edd-8c23-e0c0ffee7f0e},6"=dword:0000003f

7.1:

"{1da5d803-d492-4edd-8c23-e0c0ffee7f0e},3"=dword:0000063f
"{1da5d803-d492-4edd-8c23-e0c0ffee7f0e},6"=dword:0000063f

5.1 + virtual side:

"{1da5d803-d492-4edd-8c23-e0c0ffee7f0e},3"=dword:0000003f
"{1da5d803-d492-4edd-8c23-e0c0ffee7f0e},6"=dword:0000063f

Special stereo:

"{1da5d803-d492-4edd-8c23-e0c0ffee7f0e},3"=dword:00000003
"{1da5d803-d492-4edd-8c23-e0c0ffee7f0e},6"=dword:0000063f
 
Last edited:

TheMonkeyKing

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I'm sorry to be a pain in the butt...
I am following your first time installation instructions [AMD x470 MSi Gaming Pro Carbon - ALC1220] with your latest build, DTS DCH 6.0.9215.1. And I've come to the step to install the *.inf files from WIN10\APPS\UWP_Store\ subdirectory, except there isn't an APPS sub or a UWP_Store.
There is an ..\DTS DCH 6.0.9215.1\APPS directory with two files, dtsapo4xultrahsa.inf and dtsapo4xultrahsa.cat

Any advice?
Thank you for reading.
 

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The installer now installs the UWP .inf files, sorry the original post is a little out of date, I have to request edit rights.
Simply double click 'Install', all files and cleanups are included when it runs.

I now post an updated guide with each update, sorry again.
 

TheMonkeyKing

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Thank you! I just had to reboot and all was working. Crazy how you can't update the original post..

The installer now installs the UWP .inf files, sorry the original post is a little out of date, I have to request edit rights.
Simply double click 'Install', all files and cleanups are included when it runs.

I now post an updated guide with each update, sorry again.
 

TheMonkeyKing

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Just a thought...
If you have a github page, you could always point it and have the instructions and files there. (Or just instructions and keep the files on mediafire.) So that way you can keep this topic updated just by linking to new/updates.

Thanks again!

BTW... I use this song on youtube to judge the audio highs/lows/quality output:
 

TheMonkeyKing

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I am working on DTS DCH 6.0.9228.1, I have already made the pack but are working on the new DTS APO (just came out), home theatre is working, multichannel has more 3D-multichannel spatial.
So far I have spend about 10 hours re-tuning my preset to the new APO, the multichannel changes are the biggest change, although all delay caused by SFX and EFX has gone.

I have noticed 1 extra bug, when changing modes in stereo, there is a volume increase then ducking for 1 second, nothing major.
Custom mode and spatial selection, has a bug, although I believe it was already there previously.

I have reduced the bass and balanced bass and treble on all modes, I have an LFE and I still find it a little powerful. No delay when using Sound Unbound.

1631049195654.png

============================================

DTS DCH 6.0.9228.1 (Signed)

Features: DTS:X Ultra, DTS Headphones:X v2, DTS Interactive:X (APO4).

Main directory: https://www.mediafire.com/folder/9yrokjhyh2slx/DTS_DCH_Drivers
Apps: https://www.mediafire.com/folder/tk7ola8b5j6xt/DTS_UWP_Appx

To install-update the drivers, right click uninstall the device in 'device manager', tick 'delete driver', pnputil to remove the extension (see here).
In 'device manager' again, in 'system devices' disable 'High Definition Audio', I have two and its the first one, restart*, install, enable.

* Make sure you run CCleaner registry cleaner a few times, and remove any apps before restarting.

System Devices.png

----

See '\TOOLS\' for extra steps to unlock more features, settings, via the Realtek policy editor (RTK Device Tool.txt).
Enable 'Stereo Mix', mute the stream, then set it to play to the device, to keep the encoder always on.

----

Known issues: Some digital output devices are not detected properly with Ultra when in stereo output mode.
Workaround: Switch to speakers-headphones then back each startup (or use VB cable, other).

Some VPN's software may block the APO4 service, and need configuring.

----

https://ibb.co/ZG3cC4S | https://ibb.co/L0gD9Q7 | https://ibb.co/477T74G | https://ibb.co/MVgzT5s

----

DTS settings can be used to setup another device, or set SPDIF to stereo mode.

https://ibb.co/bW0y3cG | https://ibb.co/CmLK7KR | https://ibb.co/0QZFqbc

====

Enjoy ALC Pro DTS:X Edition.
 
Last edited:
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I updated my E-APO upmixer preset config, with the driver I find -4.8 on LFE comfortable and deep. I set everything by default to 0, not everyone is using this driver with the preset.
The latest DTS preset (6.0.9228.1), I added crossover and gain to multichannel, so by default, even without E-APO, multichannel audio gains bass enhancement.

I still prefer SFX "Any" "Any", with multichannel, for me it increases audio quality, but unfortunately limits SFX to 6 channels.
SFX has been set as "Any" "Stereo", this is the default, and allows SFX to work with 8 channels as normal.

1631255724122.png

InputChannelCount == 6, is to upmix youtube, normally its set to 0, else true 6+ channels is wrong.

1631256051632.png

Multichannel > Home theatre.
 
Last edited:
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I am working on DTS DCH 6.0.9228.1, I have already made the pack but are working on the new DTS APO (just came out), home theatre is working, multichannel has more 3D-multichannel spatial.
So far I have spend about 10 hours re-tuning my preset to the new APO, the multichannel changes are the biggest change, although all delay caused by SFX and EFX has gone.

I have noticed 1 extra bug, when changing modes in stereo, there is a volume increase then ducking for 1 second, nothing major.
Custom mode and spatial selection, has a bug, although I believe it was already there previously.

I have reduced the bass and balanced bass and treble on all modes, I have an LFE and I still find it a little powerful. No delay when using Sound Unbound.

View attachment 215943

============================================

DTS DCH 6.0.9228.1 (Signed)

Features: DTS:X Ultra, DTS Headphones:X v2, DTS Interactive:X (APO4).

Main directory: https://www.mediafire.com/folder/9yrokjhyh2slx/DTS_DCH_Drivers
Apps: https://www.mediafire.com/folder/tk7ola8b5j6xt/DTS_UWP_Appx

To install-update the drivers, right click uninstall the device in 'device manager', tick 'delete driver', pnputil to remove the extension (see here).
In 'device manager' again, in 'system devices' disable 'High Definition Audio', I have two and its the first one, restart*, install, enable.

* Make sure you run CCleaner registry cleaner a few times, and remove any apps before restarting.

System Devices.png

----

See '\TOOLS\' for extra steps to unlock more features, settings, via the Realtek policy editor (RTK Device Tool.txt).
Enable 'Stereo Mix', mute the stream, then set it to play to the device, to keep the encoder always on.

----

Known issues: Some digital output devices are not detected properly with Ultra when in stereo output mode.
Workaround: Switch to speakers-headphones then back each startup (or use VB cable, other).

Some VPN's software may block the APO4 service, and need configuring.

----

https://ibb.co/ZG3cC4S | https://ibb.co/L0gD9Q7 | https://ibb.co/477T74G | https://ibb.co/MVgzT5s

----

DTS settings can be used to setup another device, or set SPDIF to stereo mode.

https://ibb.co/bW0y3cG | https://ibb.co/CmLK7KR | https://ibb.co/0QZFqbc

====

Enjoy ALC Pro DTS:X Edition.
I can't seem to have Home Theatre working (which is a shame), but as ever great update :)
 
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