mpv version and platform

mpv-x86_64-20161120 (windows)

The great thing about the VLC player is its adjustable volume normalization feature. VLC appears to be able to even out loud noise, musical score, and spoken dialogue. I've tried the SMPLAYER (with MPV) volume normalization and it does not appear to even out the sound. Sometimes the musical score is louder than the spoken dialogue. So now I'm using MPV without SMPLAYER and everything is working great except I don't know how to turn ON volume normalization and how to key bind it (input.conf)? I'm hoping that MPV would be somewhat equivalent to VLC volume normalization.

Thanks