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

@Megatron, stereo headphones, stereo or multichannel speakers, all included.

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Anyone looking to donate, not happening, please test the driver, then buy Sound Unbound.
I am only an OEM, the files are enhancers are made by DTS, not me.

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@antonkaz, APO Driver is someone else's driver, ask them.
 
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Either broken Windows, or OEM locks and I can see its stereo only, with 3 ports. Cant fix a PC with a driver, don't exactly know what you want me to do.
Everything works for me, so from a debugging perspective, I have nothing to fix, or work on, and cannot reproduce your issue.
 
What Windows are you using 32 bit or 64 bit? the driver you linked is HDA, not DCH UAD, it's dated 2017. DTS DCH does support your device, but not the extra Waves.
In terms of detection, make sure the 'APO4 Service' is running, if it's not running you will only ever see 'Please connect', some VPN's block it.

I dont do 32 bit or HDA, I am sorry, best people to talk to is @ador250 or @Alan Finotty.

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Note, some users mentioned installing the mobo driver, then installing DTS DCH as an update helps, it depends.

@antonkaz, if you had taken my offer with Teamviewer, I could have added Ultra to your mobo driver.
 
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The Ultra pack solution is not all that easy to work with on a general level, to be fair, this is why I offered Teamviewer, the end settings will vary with driver and OEM, hence no guide.
If you are interested in me showing how to install and use it, please message me, otherwise there is not much else I can do, and you're annoying customers.

@Hearick, thanks for messaging me about the new special edition of Sound Unbound you have, looks good.

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Edit: I have been informed the driver is working on Windows 11 (yes 11), and all features are working, including the HDMI-DP.reg setup.

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To install the Potplayer Preset I have provided, open Potplayer go to 'preferences', then reset, close it then double click the preset.
Digital compressed audio will be sent directly as passthrough to SPDIF-HDMI, with format support checks.

Unsupported multichannel audio will be transcoded to DTS-HD HRA, or Interactive:X if PCM is output.
For example, Dolby TrueHD is uncompressed, then encoded to HRA.
 
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@goaway, you will need to turn off multichannel Interactive:X, here are the files, here is a video. I am tempted to make an app to better control the driver, not got around to it yet.
@antonkaz, as I said I can make it work with your OEM driver once it's installed, using the Ultra pack I made, its because you have a custom driver.

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Apps updated: https://www.mediafire.com/folder/tk7ola8b5j6xt/DTS_UWP_Appx

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Sound Unbound - Retail [2021.2.6.0]
 
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@goaway, you will need to turn off multichannel Interactive:X, here are the files, here is a video. I am tempted to make an app to better control the driver, not got around to it yet.
@antonkaz, as I said I can make it work with your OEM driver once it's installed, using the Ultra pack I made, its because you have a custom driver.
You can make driver for me? Please. DTS on my mobo worked well. On my notebook - no DTS only Waves. Fix this for my notebook not my mobo please. Thanks. Goodbye....
 
If you download Sound Unbound from the store, you get a weird stereo version. The provided retail version installs the full package with your license. Edit: Was EAPO set to 6 channels.
HDMI and eARC gets a new 'Home Theatre' feature soon, its free and will be included with your purchase (needs eARC receiver).

Also note, if you buy Sound Unbound, you can apply it to 10 devices with the same Windows account.


The screen recorder downmixes to stereo.
 
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I'm curious to know if the purchased sound unbound installs APO4 or is it built into the app.
thanks for any info.
 
I'm curious to know if the purchased sound unbound installs APO4 or is it built into the app.
thanks for any info.
It's built into the app ^^ (At least it works without the mod)
 
Sound Unbound is mainly a spatial engine (DTS spatial engine if you like), @Hearick is indeed correct, both use APO4, and can be combined or separate.
Its a single system overall, with two apps and methods, for example, the retail Sound Unbound does not require a special driver.

If you have Ultra as part of the driver, it will combine with SU as normal, and your license.

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After the Potplayer preset, you can scan codecs on the system, if needed.

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I will add it to the collection at some point, most of them require some edits (performance), but they all will work.
 
DTS DCH 6.0.9175.1 (Signed)

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

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

Here is a clean way to install-update the drivers, right click uninstall the device in 'device manager', tick 'delete driver', pnputil to remove the extension (see post 1).
In 'device manager' again, in 'system devices' disable 'High Definition Audio Controller', 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.

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See '\APPS\' for the Ultra app inf, and '\TOOLS\' for extra steps to unlock more features (RTK Device Tool.txt).
Enable 'Stereo Mix', mute the stream, then set it to play to SPDIF, to keep the encoder on.

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

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

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If you are happy with the driver please purchase a full license via Sound Unbound.

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E-APO Stereo Upmixer: https://www.techpowerup.com/forums/threads/equaliser-apo-stereo-surround-upmixer.276608/

Sound Unbound: https://www.microsoft.com/en-us/p/dts-sound-unbound/9pj0nkl8mcsj?activetab=pivot:overviewtab
Ultra: https://www.microsoft.com/en-us/p/dts-x-ultra/9n0h1m8j1308?activetab=pivot:overviewtab

https://streamable.com/legpm6 | https://streamable.com/2f5plf | https://streamable.com/i7brq7
https://streamable.com/sqhf43 | https://streamable.com/y0y9iz | https://streamable.com/lnkdzc

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Changes-updates for DTS Interactive, and Bluetooth, includes Realtek update.

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Please stop spamming this thread with requests to make a driver. I have deleted the last 3 PAGES worth of single sentence asks.
DTS DCH 6.0.9175.1 (Signed)

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

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

Here is a clean way to install-update the drivers, right click uninstall the device in 'device manager', tick 'delete driver', pnputil to remove the extension (see post 1).
In 'device manager' again, in 'system devices' disable 'High Definition Audio Controller', 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.

----

See '\APPS\' for the Ultra app inf, and '\TOOLS\' for extra steps to unlock more features (RTK Device Tool.txt).
Enable 'Stereo Mix', mute the stream, then set it to play to SPDIF, to keep the encoder on.

----

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

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

----

If you are happy with the driver please purchase a full license via Sound Unbound.

----

E-APO Stereo Upmixer: https://www.techpowerup.com/forums/threads/equaliser-apo-stereo-surround-upmixer.276608/

Sound Unbound: https://www.microsoft.com/en-us/p/dts-sound-unbound/9pj0nkl8mcsj?activetab=pivot:overviewtab
Ultra: https://www.microsoft.com/en-us/p/dts-x-ultra/9n0h1m8j1308?activetab=pivot:overviewtab

https://streamable.com/legpm6 | https://streamable.com/2f5plf | https://streamable.com/i7brq7
https://streamable.com/sqhf43 | https://streamable.com/y0y9iz | https://streamable.com/lnkdzc

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Changes-updates for DTS Interactive, includes Realtek update.
Fix tommorow please Your Driver Pack to add SST mode support and Waves Pro Audio VST and APO drivers. Thanks
 
I've tried to help you several times, I even sent you messages where you totally ignore the information given.
I have offered Teamviewer several times, so I can add Ultra to your custom, but you ignore.

Stop posting, and stop saying fix your driver as if its broken, it's offensive.


Angry Lilo And Stitch GIF
 
Fix tommorow please Your Driver Pack to add SST mode support and Waves Pro Audio VST and APO drivers. Thanks

Please stop spamming this thread with requests to make a driver. I have deleted the last 3 PAGES worth of single sentence asks.

Please attempt to understand the difficulty in making these work for a myriad of devices.
 
@Solaris17 thankyou.

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So I did some digging into Windows, to get lossless digital compressed audio out from SPDIF. It turns out I would need to break and rebuild portions of Windows.
It seems there is an audio format check, and Windows will check the format to the interface capabilities (listed), and then allow or stop audio.

For example, if I play TrueHD via the photos app, Windows will see TrueHD, and the SPDIF interface, and disallow audio.
The strange part is there is no such restriction in terms of lossless analogue, as I have tested.

I also tested a self encoded file, 6 channel DTS-HD MA, 192khz, with 96khz-24bit core.

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Ignore the 16-bit 2 channel readout, its a bug or for compatibility.

 
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Interestingly, my 889 on SPDIF will send up to 8 channels PCM (192khz 32bit), but the extractor only sends 2 channels (same spec), regardless of input.
On 889, and 8 channels, the unit (Z906) essentially turns off, 6 channels is played as 2, 8 from extractor results in 2 only.

Tested using WASAPI exclusive mode (no Interactive), and Potplayer.

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I clearly see the issue, In terms of audio, HDMI 2.0b-2.1 carries a max of 37mbps, the same for DisplayPort. However interestingly, modern Toslink supports all modern formats @125mpbs.
Based on 192khz, 32bit 8 channels @ ~51mbps, 125mpbs is almost enough for 20 channels @ 192khz 32 bit, or, roughly 108 channels @ 48khz 24bit (125 / 37 * 32).

The problem is, Toshiba did not add revision numbers to their modules (which vary in speed), Windows just see's SPDIF, and no revision to work with.
If Windows, or other hardware-software could detect the revision or specs of the SPDIF module, it would work like HDMI.

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DTS Settings, updated, added 2 personal configurations, one for HDMI-DP stereo (monitor, no digital), and the other for my HDMI extractor (multichannel with Interactive).

If you are using the HDMI-DP.reg settings, using 'FX Configurator', copy the key from SFX processing modes, to EFX processing modes (middle column).
Not all devices accept EFX processing, and may end up with no audio, reverse the change if so, else SU will fully unlock for you.

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anyone tested on windows 11??
 
New brand laptop (and wait dts ultra preset from this laptop)
 
Indeed, as @Hearick has posted, the driver is ready for Win11, along side APO4 and all its features, in fact there are more features with Win11 and the new test SU.
If we are lucky perhaps something can be done with SPDIF, I have emailed DTS about it, but i'm not sure what they can do, unless there is bitrate detection.

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The new AMD audio bus driver also works on Realtek devices, in my case I have an AMD chipset, AMD CPU and AMD GPU.

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Indeed, as @Hearick has posted, the driver is ready for Win11, along side APO4 and all its features, in fact there are more features with Win11 and the new test SU.
If we are lucky perhaps something can be done with SPDIF, I have emailed DTS about it, but i'm not sure what they can do, unless there is bitrate detection.

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The new AMD audio bus driver also works on Realtek devices, in my case I have an AMD chipset, AMD CPU and AMD GPU.

View attachment 205157

That means realtek effects will work with AMD audio device?
 
Yes, in the same way, but uncontrolled, as it does not appear in the panel. You do get defaults and protection.

Edit: Updated 'DTS Settings', fixed empty keys instead of remove, now removed.
 
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