The latest drivers are utter crap. My HDMI to HDMI in with soundbar connected to ARC. The audio went from 3-5 seconds to initialize to an incredible 10-15 seconds. This is a lot of missed audio and sometimes if you skip in the video it takes that long to re-initialize and many times fails to initialize at all.
Fix: Delete the AMD drivers..
1. Device Manager
3. Select checkbox Uninstall Drivers
Use the working Microsoft Drivers for AMD.
I use Dolby Access for Dolby Atmos Audio out to soundbar.
Yes it worked fine before the update.
VIZIO SB36512-F6 36” 5.1.2 Channel Home Theater Surround Sound Bar with Dolby Atmos
Dolby Access app installed for Dobly Atmos Audio. The audio would not start 90% of the time and when it did start it took around 15-20 seconds to initialize. Atmos should not take more than 3 seconds to initialize and the default drivers from Microsoft are working properly.
Went into device manager > right clicked on the AMD HD Audio > deleted and used the uninstall driver option.