The other interesting thing about sound quality is that it is the most often overlooked part of production. Most directors don't care about it and figure it can be fixed later, and the cinematography directors give absolute zero shit about placement of mics since they are only concerned with camera placement and the shot. So mics get placed further and further away from actors.

Then there is only so much that can be done in post to fix this and then the sound engineers after a certain point don't realize you can't hear it because they listened to it dozens of times already where they know what it is being said anyway.

This is why so many modern productions have terrible sound to the point where you need subtitles to actually know what the hell is being said.