Scott Wilkinson is featured in this month's Popular Science, talking about the high dynamic audio range and how it's constantly needing to be adjusted when watching a movie at home. Scott ways that movies in the theaters are loud, but the spec is 85dBa, with peaks of 120dBa. The acoustic makes up the loudness, though. But when you get home, you don't have that luxury unless you've built it in. So you're constantly turning it up for dialog, and turning it down for things like explosions. Commercials are even worse because, while not really louder, the dynamic range is narrow and everything is turned up to the max level. Scott recommends people use "night mode" which uses dynamic range compression to make the audio easier to hear by evening out all the sound.