I've had issues with distorted audio played via HDMI since Sept. 2019 on 3 different computers.  

You can make out speech played via HDMI, but it is really distorted.  After a time it sounds normal, ie undistorted.   It used to occur the every time when a computer was booted.   Now it seems to occur after it comes out of sleep mode.

Analog audio plays fine.   These machines have a variety of sound adapters in them and all of them act the same.

Is anyone else experiencing this ?

LG