For VLC, should I use Windows Loudness Equalization, VLC dynamic range compressor, or both? For MPC-HC's, should I use Normalizer, Loudness Equalization, or both? - Quora
How to Use the Equalizer in VLC Media Player
Dialogues Too Quiet, Action Too Loud? Use VLC Media Player to Fix it
Dialogues Too Quiet, Action Too Loud? Use VLC Media Player to Fix it
Adjusting Audio Dynamics in VLC
Adjustment & Effects — VLC User Documentation 3.0 documentation
How To Normalize Volume in VLC
Official download of VLC media player, the best Open Source player - VideoLAN