Since the 6.0.9251.1 WHQL drivers, there has been a major change made by Realtek regarding the drivers package type dedicated to your motherboard (probably to overcome the APO services conflict that generates DTS service errors that you are currently experiencing), which fact that DTS APO4x Core Sofware Component & DTS APO4x Service Sofware Component are no longer used by the new drivers package type architecture.
So if you have installed the drivers package from your motherboard support page, it still uses the old problematic architecture. The drivers package that I offer in my thread uses the new fixed architecture.
You have an ASUS ROG SS3|DTS Sound Unbound motherboard, so :
You need Realtek Audio Drivers (UAD - ASUS ROG SS3-DTS MB) from the first post of this thread : [DRIVERS] Realtek Audio (MB | Intel 2xx/3xx/4xx/5xx/6xx & AMD 3xx/4xx/5xx/6xx).
Follow scrupulously your CLEANUP process then your INSTALL process, for the next drivers packages that I would release, you will can directly follow your UPDATE process.
Thank you for your reply. Do I NEED to install these: - Install Sonic Studio III and Install DTS Sound Unbound?
It is not imperative to install them, it is up to you to choose according to your needs.