Comment by mikepurvis
10 hours ago
It's reasonable for the 5.1 mix to have louder atmosphere and be more dependent on directionality for the viewer to pick the dialog out of the center channel. However, all media should also be supplying a stereo mix where the dialog is appropriately boosted.
My PS4 Slim was not capable of this at the device level. An individual app could choose to expose the choice of audio format, but many do not :(