1. I saw got new bios update so I go and update it.

2. My laptop is i5-12500h + 3060

3. I just aquire my laptop 3 week ago

4. Try with few external speaker & headphones like bose ,steelseries & razer product still the same.

5.Here are the screen shot~

hi,

I download and try still the same~

Microsoft store had a new update of the DTS:X Ultra~

Update the latest version but still the same problem~

I try uninstall and reisntall back.

Still same.

I also reinstall the whole DTS from the acer website but still no luck~

Thank for the all answer

Finally,
My DTS UNBOUND license and DTS:X Ultra is back after a lot try and error~

Here is what I do ~

1. Uninstall the DTS® Sound Unbound & DTS:X Ultra by using xxx uninstaller app~

2. Restart PC

3. Install Setup_APP from these 2 file that is download from acer driver website based on the laptop that I had~

• XPERI DTS Utility_XPERI_1.11.3.0_W11x64_A
• XPERI DTS Utility_XPERI_2021.4.13.0_W11x64_A

4. I recheck by click on the 2 file of all the ppx extension installation file just in case had any file that is not being installed ~

5. Then I restart my laptop.

6. Next in Audio_Realtek_6.0.9309.1_W11x64_(ALC287) driver folder ,I go to Audio_Realtek_6.0.9309.1_W11x64_(ALC287)\Win64\Thirdparty.

I INSTALL THE FOLLOWING ITEM

• DTS INSTALL

7. Go to DTSXUltra_UWP_APO4x_HSA_MSFT_SIGNED_1_11_1_0_21H1_21H2_beta and click install

• dtsapo4xultrahsa

8.Go to DTS_UWP_APO4x_RPCService_MSFT_SIGNED_1_10_9_0_21H1_21H2_beta and click install

• dtsapo4xservice

9.Go to DTS_UWP_APO4x_MSFT_SIGNED_Acer_EXT_1_10_13_0_beta and click install

• dtsapo4Acerextensionpkg

10.Go to DTS_UWP_APO4x_Core_MSFT_SIGNED_1_10_12_0_21H1_21H2_beta and click install

• dtsapo4x64

11. Then I Restart my PC.

Here is result

ya~

After install and uninstall over 30+ time and google a lot method to try~
Still no working then I do some combination of some of the tutorial info that I get from online and try my luck~

Then to my surprise ,It work out~