Fri May 25, 2018 8:11 pm
Just throwing things against a wall, but for those having ac3 codec problems after 1803 upgrade (Thankfully I just set my upgrade deferral to 365 days) try opening up an admin command prompt and run the command: regsvr32 msauddecmft.dll
This re-registers the ac3 codec. I have no idea if this will help, but it's worth a shot. I issued the command on my non upgraded Windows 10 with no ill effects.
Microsoft Windows 10 Pro x64
Intel(R) Core(TM) i7-6700, 3.40GHz, 32.0 GB
MB: MSI, BIOS: American Megatrends Inc. A.60, 12/17/2015
NVIDIA GeForce GTX 960, 2Gb
Resolve 19.1.3(Free)