This is a major hassle for me because I like watching movies late at night and I live in a city row house where neighbors sometimes complain of noise. When I have the volume set to something reasonable during the regular conversation parts of the movie, that same system volume level outputs a significantly louder sound when some violence kicks in or the soundtrack to the extent of having to rush to my remote to turn it down. Then I have to turn it back up when it's over because I can't hear conversations at the same volume level at which this increased input volume was tolerable. I also have some delicate sensory sensitivities (I can't handle very loud or certain sounds) so this is a problem.
I have never experienced this situation where I actually found the drastic variation in the sound volume something justified, which made the movie more enjoyable. IOW, I always find it a hassle.
Why are some movie parts much louder than others?
My entertainment setup consists of a projector, DVD player, Roku box for streaming, Sony receiver, and a 5+sub Harman Kardon speakers. You could say it is a fairly sophisticated setup and I wouldn't mind, if possible, to configure some setting to make the sound level more uniform coming out of the receiver regardless of how the input is encoded.