u already had an older version (7.2.7000.4) that is registered in ur system which is conflicting with the new version 7.2.8000.13 (mine)..u have to uninstall all previously installed driver by cmd pnputil.
Open CMD as administrator, type this -
This will show all installed...
I'm sorry that u have to go through some trial and errors which should be done by me. But my pc and tv in a different room that's why I can't troubleshoot properly to give u a final solution. I updated the driver .inf in github and did some things differently than last time. If u r still...
I updated the nvidia hdaudio to latest v22.214.171.124 > Download (restart pc with disable driver signature enforcement mode then install, vdo instruction)
See the changes that needed to support dolby pcee4 in .inf file > original vs mod (if u can figure things out u can make updated mod for urself...
Any kind of self made executable file signed with a self made certificate will detect as a threat because there is no info about that file in virus database. Anti-virus softs don't know if a file is actually virus or not, they just know that if that file comes from a trusted source or not.
Any kind of software rendered or enhancement will create latency. The reason why Realtek default and Nvidia hdmi default don't have latency bcoz the sound processing (specially enhancements) is done by their own chip, something like hardware acceleration.
My realtek audio chip is ALC892 too. That error specifically means that u r not in disable driver signature enforcement mode. Did u revert the group policy edit before going into test mode ? Just follow this installation method