Used guide here:
https://community.acer.com/t5/Windows-10/Dolby-Home-Theater-Dolby-Digital-Plus-not-working/td-p/372803
Worked great however when the mic gets turned on by something the dolby gets turned off and I have to turn it back on every time.
Work around I leave teamspeak up and I only have to turn in back on every time I reboot.
Had the same issue when I win 7 but I turn off enhaments like echo reductsion and it fixed it but that does not work in win 10.
please help me, If no one knows how to fix than I will try contacting dolby directly my self because the default realtek driver does that have that issue.
Thank You,
Corey