Sup. Thought I should share with these...especially cause I didn't fint it on guru3d and they can be potentially better than default Realtek HD Audio drivers. Feel free to try it anyways...should be compatible with x64-86 Vista/7/8/8.1 and any other onboard Realtek HD audio or built-in Nvidia/ ATI HD audio...maybe with some others built-in HD audio drivers - try for yourself and let us know Dolby® Advanced Audio v2/ Home Theater v4 Drivers (download link) DOLBY.rar contents: Dolby PCEE Drivers x64.msi Dolby PCEE Drivers x86.msi Dolby Home Theater v4.msi Dolby Advanced Audio v2.msi Installation: 1. Uninstall Realtek HD Audio drivers or NVIDIA or ATI HD Audio drivers. Reboot. NOTE: For Win 8/8.1, Disable Driver Signature Enforcement 2. Install "Dolby PCEE Drivers". During installation process, choose either "DAA(release)" for Advanced Audio v2 OR "DHT(release)" for Home Theater v4. 3. Install either "Dolby Advanced Audio v2" OR "Dolby Home Theater v4" depending on the chosen settings previously installed "Dolby PCEE Drivers". Reboot. 4. Enjoy. Dolby Home Theater v4 Overview (official site page) Dolby Advanced Audio v2 Overview (official site page) Dolby PC Entertainment Experience v4 Overview (PDF) PC Postprocessing Technologies: A Competitive Analysis (PDF) Dolby Profile Selector/ EQ settings screenshots: Spoiler Home Theater v4/ Advanced Audio v2 features comparison: PS. Feel free to comment about your listening experience and your thoughts about these drivers.