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

i am getting this. not sure whether this is right or wrong after applying the hdmi reg patch
 

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Its correct, great work. You can switch to multichannel if you setup the file then restart APO4 service and Windows audio. Once the reg files are setup and you have restarted 1 time.
Each time the driver (output device) is installed, it will get a new {DEVICE-ID}, so you will need to update your files.
 
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Driver reuploaded, if you have issues with SU and SPDIF, try this one, if still not working, you will need to wait for Realtek updates.
If you are not effected, you do not need to take any steps or re-install at this time.

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So my Toslink (SPDIF) cable is 125mbps, not sure what my 889 module is | PCM, 192Khz, 32bit (not float), 8 channels = ~50-51mbps
If it could do 125mbps, that almost enough for: PCM - 192khz, 32 bit (not float), 20 channels.

That's 20 channels, uncompressed, ultra high definition spec.

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Would love to mod one of these with a return turn channel, sync, and other features, + 250mbps.

Microsoft Word - FB2M5LVR Datasheet Revision E_.docx (firecomms.com)

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1.png

Stereo with 8D effects, I use an upmixer in multichannel mode.
 
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well darn no luck main and alternative both do same thing Ultra is shown to be set to multi channel but you can not select it from with in windows just reverts back to off for spacial sound and dts decoding is still broken :( question tho could a bad policy install be a cause for this by any chance?

@Ferather so i figured out turning off enable audio enhancements in windows audio settings for spidif allows the dts decoder within windows to work the dts x and headphone x video plays as intended and DTS-MA files play as intended as well still you can not enable dts ultra in spacial sound tho but getting closer idk if ultra still works with enhancements off but it still says its active for multi channel tho idk how to test if its really working
 
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Interesting. Spatial on SPDIF will only enable if Interactive and 6 channel setup is disabled, the Ultra and Headphones versions are for stereo 2 channel setups.


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Another option, in case you have an OEM lock, try removing the EFX_51 key from SPDIF, when in multichannel. Some more harsh locks may put you on stereo only.

1.png

DTS_EFX_51_CLSID = {1AAB27FA-5B3E-4CB1-9312-C66BD74FE739}

Refer to "Class ID's.txt" in \TOOLS\, of the main driver.

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In terms of policy, I did experiment with an option, but it caused BSOD with newer chips.

1623582230780.png
 
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Driver reuploaded, if you have issues with SU and SPDIF, try this one, if still not working, you will need to wait for Realtek updates.
If you are not effected, you do not need to take any steps or re-install at this time.

====

So my Toslink (SPDIF) cable is 125mbps, not sure what my 889 module is | PCM, 192Khz, 32bit (not float), 8 channels = ~50-51mbps
If it could do 125mbps, that almost enough for: PCM - 192khz, 32 bit (not float), 20 channels.

That's 20 channels, uncompressed, ultra high definition spec.

----

Would love to mod one of these with a return turn channel, sync, and other features, + 250mbps.

Microsoft Word - FB2M5LVR Datasheet Revision E_.docx (firecomms.com)

====

View attachment 203529

Stereo with 8D effects, I use an upmixer in multichannel mode.
Hey Ferather,

now I'm totally confused. With your work I got DTS Sound over Optical SPDIF to my Logitech THX System. My external Decoder shows dts interactive and the DTS:X told me that DTS:X Ultra is active - I've installed now the UnboundApp and I got the Ultra and Headphone Options in Spatial Sound but I can't select it. Now My Logitech Decoder shows dts digital - without the unbound App it 2was dts interactive
My final question: What is better one in relationship to Digital SPDIF. Thanks in advance
 
Spatial on SPDIF will only enable if Interactive and 6 channel setup is disabled, the Ultra and Headphones versions are for stereo 2 channel setups.

The second one, lossless to lossy with X, or should be.
 
Hell why I need to touch a running system. Stupid - thanks to the Outbound App It looks like something messed up with dts:x - It would not recognized anymore by the THX Speaker System. I hope a restart helps out.

Edit: ok working again. Using MPC:BE
Maybe I will the player you've mentioned because in MPC:BE it takes a couple of clicks to get all infos for audio-processes
 

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I decided the purchase the Retail edition of Sound Unbound (2021.2.6.0), I can see they moved things, but the Ultra mode is still there and working with the preset.
The Ultra:X option is removed, however I simply enable the Headphones:X (same engine), and turn off headphones, all Ultra modes work.

1623596913840.png

For me the new version is much better.
 
I decided the purchase the Retail edition of Sound Unbound (2021.2.6.0), I can see they moved things, but the Ultra mode is still there and working with the preset.
The Ultra:X option is removed, however I simply enable the Headphones:X (same engine), and turn off headphones, all Ultra modes work.

View attachment 203726

For me the new version is much better.
So, from no on, you will mod the new version ?
 
Interesting. Spatial on SPDIF will only enable if Interactive and 6 channel setup is disabled, the Ultra and Headphones versions are for stereo 2 channel setups.


----

Another option, in case you have an OEM lock, try removing the EFX_51 key from SPDIF, when in multichannel. Some more harsh locks may put you on stereo only.

View attachment 203712

DTS_EFX_51_CLSID = {1AAB27FA-5B3E-4CB1-9312-C66BD74FE739}

Refer to "Class ID's.txt" in \TOOLS\, of the main driver.

----

In terms of policy, I did experiment with an option, but it caused BSOD with newer chips.

View attachment 203714
ah ok buddy i thought that might be the case i just was not sure so what dose ultra do in multi channel config? Sound is amazing btw really great job on this driver pack i have a z906 set that i connected to a onyko integra DTR 9.1U2 and the sound is incredible was expecting to take a huge hit moveing from analoge to spidif just wish it would matrix stereo feeds like youtube and music like pandora but that i can live with. Im just to lazy to do the swaping back and forth from 2ch to dts interactive lol.
 
What does Ultra do in multi channel config? - the same as it does for stereo but for multi-speakers, where rear-side centre exist, different processing too.

@Hearick, unfortunately not. I felt DTS deserved the money, given then driver. Its purchase only, but you do get ultra.
 
What does Ultra do in multi channel config? - the same as it does for stereo but for multi-speakers, where rear-side centre exist, different processing too.

@Hearick, unfortunately not. I felt DTS deserved the money, given then driver. Its purchase only, but you do get ultra.
is the effect applied if ultra is not selected for spacial or enhancements are off sorry just cant tell if i hear any effect from it
 
What does Ultra do in multi channel config? - the same as it does for stereo but for multi-speakers, where rear-side centre exist, different processing too.

@Hearick, unfortunately not. I felt DTS deserved the money, given then driver. Its purchase only, but you do get ultra.
I bought it too ^^

Could you give me the link if the new DTS X Ultra app, please ?
 
@ajf64, enhancements need to be on. @Hearick, if you own it, uninstall the older free one, open the store and download the current one (you can also turn on auto-updates).

1.png
 
And if I start the DTS X Ultra app, I Will have the same settings than in your screenshots ? (Spatial ones)
I think, because in my case, when you start the Unbound App you get the Spatial Ultra Settings. It is a little bit confusing
 
Each mode has its own spatial setting, the one I showed is the custom mode (make your own).
Edit: Yes it can be confusing, even more so if they move features.

Also note, if you are unable to do multichannel on SPDIF (test files here), disable Interactive.
You will get lossless to lossless PCM 2 channel, in my case up to 192khz 32 bit.

If you have Z906, you can clone or expand the spatial lossless stereo.

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1623611727191.png

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Here are two options in the preset. xml (Windows\System32\DTS\APO4x\), for any future changes.
You will need to copy the file, edit, then replace the original.

<control name="APO4-Auto Content Mode Enable">0</control>
<control name="APO4-Spatial Enable">0</control>

They are both at the top, set to 1, then restart PC, not needed at the moment.

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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


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Since the alternative was meant to address SPDIF, but likely is an OEM issue, I can change it so it has no Interactive.
 
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So my GA-990FXA-UD3 (rev. 4.0) with ALC889, based on testing should do 50+mbps, currently I am working on some registry hacks, to see what I can do.
The second image is Dolby TrueHD fully decompressed, ending at just under 7mbps, in this setup its lossless to lossy Interactive:X.

On analogue, you will get the fully decompressed lossless played through, but still sounds worse.

1623750481227.png
1623750684836.png

1623758526402.png

====

DTS DCH 6.0.9172.1 (Signed, OEM) - Main (SPDIF): Interactive on [Multichannel] | Alternative (SPDIF): Interactive off [Stereo]
Both drivers can be changed to on-off with 'DTS Settings', the alternative will also need EFX added.

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

Updates will be for fixes, improved quality and-or performance, and less frequent than Realtek releases.

----

If you prefer an older version of the Realtek or DTS driver, you can disable driver signing and replace any files.
If you like to write your own .inf files, or are learning to, you should find the inf's easy to read.

----

DTS:X Ultra, DTS DCH 6.0.9172.1, and the Retail Sound Unbound app ('Stereo Mix' recording):


Each mode has its own spatial setting (one of the three you see).
 
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So my GA-990FXA-UD3 (rev. 4.0) with ALC889, based on testing should do 50+mbps, currently I am working on some registry hacks, to see what I can do.
The second image is Dolby TrueHD fully decompressed, ending at just under 7mbps, in this setup its lossless to lossy Interactive:X.

On analogue, you will get the fully decompressed lossless played through, but still sounds worse.

View attachment 203965
View attachment 203966

View attachment 203973

====

DTS DCH 6.0.9172.1 (Signed, OEM) - Main (SPDIF): Interactive on [Multichannel] | Alternative (SPDIF): Interactive off [Stereo]
Both drivers can be changed to on-off with 'DTS Settings', the alternative will also need EFX added.

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

Updates will be for fixes, improved quality and-or performance, and less frequent than Realtek releases.

----

If you prefer an older version of the Realtek or DTS driver, you can disable driver signing and replace any files.
If you like to write your own .inf files, or are learning to, you should find the inf's easy to read.

----

DTS:X Ultra, DTS DCH 6.0.9172.1, and the Retail Sound Unbound app ('Stereo Mix' recording):


Each mode has its own spatial setting (one of the three you see).
Do I need Equalizer APO to add EFX ?
 
No, here is a video for the DTS Interactive pack, you only need to do the EFX part near the end, the rest is included and done.
In some cases starting with stereo, then enabling and adding Interactive, might work with some ALCs.

Multichannel 7.1 and 5.1 Wav Test Files (jensign.com)

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ALC 889, with custom policy (see 'RTK Device Tool.txt' in \TOOLS\, and this video),

1623836560640.png

More features than shown here, varies with OEM.
 
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Will this work with a MSI B550 Tomahawk?
 
[MSI B550 Tomahawk] Audio Ports (Rear): 5+ Optical S/PDIF (Realtek® ALC1200 / ALC1220P Codec). Source.
If Windows is healthy, yes it should work on all ALCs (Ignoring OEM changes).

Make a restore point, just to be safe, you can delete it later.
 
Sorry I should have put it in the above post but I just use stereo headphones atm.
 
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