In Hitchcock's eyes the movement was dramatic, not the acting. When he wanted the audience to be moved, he moved the camera. He was a subtle human being, and he was also the best director I have ever worked with. ↗
I think one thing that helped the sound change, it's a real subtle thing; it's just one switch on my bass, it has three positions, and I usually boost the mid-range frequency, I lowered the frequency that I boost, and that goes out to the sound system, too. ↗
Be extremely subtle, even to the point of formlessness. Be extremely mysterious, even to the point of soundlessness. Thereby you can be the director of the opponent's fate. ↗