No audio while playing video in PotPlayer
I had a similar problem, my fix was:
Audio > Audio Effects > Voice Removal
It was enabled by unknowingly using a shortcut: [Shift]+[V]
PotPlayer menu, Audio, Output Mode was "Pass-through after AC3 re-encoding" instead of "PCM (Default) (Recommended)".
My fix was Audio>Audio Renderer>Waveout (instead of Directsound or Autoselect)