Authors:

A lot of people forget that today. They come to the point where you walk on a set and the first thing you know you're looking at the sound man and you're saying to yourself, "How the hell can they get any sound when nobody is talking!" They get all mumbly. You can't make out what they're saying! And you're 6 feet away from them! Whereas in the old-time movies, you hear them, you understand every word they're saying, and you didn't have to put on your loudspeaker.

Source: film.avclub.com
A lot of people forget that today. They come to the point where you walk on a set and the first thing you know you're looking at the sound man and you're saying to yourself, How the hell can they get any sound when