DTS:X APO4 + DTS Interactive for Most Devices

Ferather

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Staff member
DTS:X [APO4] + DTS Interactive

Download: https://www.mediafire.com/file/6y2xqutyfy1733u/DTS-X_Ultra.7z
Apps: https://www.mediafire.com/folder/tk7ola8b5j6xt/DTS+UWP+Appx

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1: Double click install. 2: Edit the .reg files in /SETUP/ to setup the each output.

To setup the .reg files (which are read-only and will ask you to save), open FX Config, and select the output you want, HDMI in my case, then copy its ID.
Paste the ID replacing {DEVICE-ID} on both lines, then save it, give it name. You will need to repeat this step each time a new driver is installed.

Disable the audio device using Windows settings, then restore the reg file you made (double click it), see this video for a better view.
For Interactive repeat all steps after selecting it. It will setup its self, but not as default, the repeat fixes that.

If you are using a custom driver with other APO's, you will need to enter the keys in 'Class ID's.txt' manually using FX Config.
Normally the standard DTS FX's go first (depends), and the encoder must always go last in the list for EFX.

Some devices might use LFX/GFX, delete or move these lines, LFX to SFX, GFX to MFX.

You will still need to use the .reg files, when setting up a custom, simply delete the 'FxProperties' section, enter the ID and restore.

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If you do not have an active Realtek device on the system, you will need to edit 'dtsapo4xext.inf' and disable driver signing.

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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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To uninstall, stop the APO4 service, delete "C:\Windows\System32\DTS\PC\APO4x\", run a registry cleaner.

Also backup the devices settings using FX Config, so you can restore them easily.
 

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Ferather

Administrator
Staff member
https://www.techpowerup.com/forums/threads/dts-dch-driver-for-realtek-dts-x.279972/post-4638174 < How to program virtual devices, and also USB.

If you don't have a Realtek device on the system, you can try another HDAUDIO device such as GPU, instead of speakers.
You will also still need to use the provided 'settings.reg' files, rather than the ones linked in the guide.

Setup is manual because the settings are not provided with the driver-device, and each setup is different.
Also note, any changes made in the guide will be removed on device driver uninstall (clean).

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Note: DTS Interactive is for bitstreaming form factors (SPDIF, HDMI).
 

Ferather

Administrator
Staff member
Updated, if you are directly updating (not fresh install), you can just run install, no need to setup the devices (.reg files).
Restart your computer once the update has finished, just to make sure its running correctly.
 

Ferather

Administrator
Staff member
Minor update, no file changes, if you want to enable SFX (preset .xml), set to "Any" "Stereo".
I prefer it on, but in some cases it might be an issue for some of you.

Use the 'replace all' feature of the editor.
 
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