when installing the DTS Studio Sound application on supported Conexant/IDT/Realtek audio devices, the "DTS preset file" may be different. [ex. on my dad's Toshiba laptop, HKR,"EP\\0","{7A8B74C8-FA66-4460-8542-D6119C59E9D4},2",0x00000000,%16419%\SRS Labs\APO\slconfig.xml is changed to HKR,"EP\\0","{7A8B74C8-FA66-4460-8542-D6119C59E9D4},2",0x00000000,%16419%\SRS Labs\APO\presets_1179fa22_81.xml (for Win8.1 & Win10) or HKR,"EP\\0","{7A8B74C8-FA66-4460-8542-D6119C59E9D4},2",0x00000000,%16419%\SRS Labs\APO\presets_1179fa22.xml (for Vista/Win7); the DTS Studio Sound app installs its own "preset" files onto the "ProgramData\SRS Labs\APO" folder, changing & overwriting the default preset file].
Btw, DTS studio sound is also featured on some ASUS and LG laptops as well (hence preset XML files beginning with "1043" & "1854" - those are vendor IDs for asus and lg).