Walter Murch and the “Law of Two-and-a-Half”
Recently, my good friend, Kubilay Uner, an amazing composer and engineer, wrote about how a certain mixing problem can sometimes be solved with simple panning, and I was reminded about what Walter Murch has to say on the subjects of panning and mixing in general.
In this interview, which is way too pithy to summarize here, Walter talks about the “Law of Two-and-a-Half”. He states that our brains are able to track only about 2.5 individual strains of something, but as soon as the number reaches 3, our brains no longer perceive them as 3 individual things, but instead as a singular, melded “group of things”.
He refers to his work in film as an example, like how when there’s one person walking, the sound of the footsteps needs to be in sync, and when there are two people walking, the footsteps need to match, too, but if there are three or more people walking, then none of the footsteps need to sync up. It’s as if the brain crosses a threshold and, instead of perceiving 3 individuals walking, it perceives a singular “group of people” walking, and as long as the sound is that of a “group of people” walking, the brain will accept it whether it’s in sync or not.
As other examples of this phenomenon, he talks about the how the Chinese symbol for “tree” looks like a tree (mu), the symbol for “woods” looks like two trees (lin), and the symbol for “forest” looks like three trees (sen). He mentions how Bach believed the listener could only handle three individual melody lines at a time, why Barnum had three rings in his circus, and even the “mysterious ‘mulitple singularity’ of the Christian Trinity”. He observes than many primitive languages only have words for “one”, “two” and “three”, beyond which anything more is simply called “many”. Although he doesn’t mention it specifically, I’m pretty sure he’s also referring to how three different notes are heard as a singular “chord” in our minds.
He talks about the way the brain decodes speech as opposed to music, why dialog is mono and music is stereo, and he describes them all in terms of colors, too, which is something I relate to as well. If my eyes are closed and I hear a loud sound, a certain pattern related to the nature of the sound will flash across my field of vision. Music to me has always been about colors, shapes, and textures, and now with the ubiquity of Pro Tools, the visualization is literal. Ultimately, what he’s presenting is some “conceptual and practical guidelines” for successfully navigating the crowded waters of modern mixing and production, and how to determine which sounds should dominate, which should play second fiddle, and which should be eliminated altogether. These are all extremely valuable insights to anyone who works in fields like ours, where creativity and technology intersect.
Walter Murch is amazing – A true Renaissance man and a great source of personal inspiration. The man has won multiple Oscars for both picture editing and sound mixing. He was the first person to be called a Sound Designer. One of the original Dirty Dozen filmmakers, his handiwork can be seen and heard on such seminal films as The Godfather series, Apocalypse Now, Cold Mountain and The English Patient. He and his colleagues actually invented the 5.1 surround sound format. He has lectured to neurosurgeons about picture editing, and to architects about Copernicus and the Pantheon. He’s even working on a new theory about Bode’s Law, which has to do with finding a mathematical pattern in the orbits of the planets. Basically he’s discovered that the ratio of the distance of the planets, and even moons around planets, match the ratios of intervals that make up a 7th chord in music. More about that and his observations on Copernicus can be read in this interview.
I connect with his desire to look beyond the boundaries of one specific field of expertise, like picture editing, and discover, explore and describe the underlying patterns that seem to repeat in what are otherwise disparate areas of study. This is something that I have touched on in previous blog posts and thought about extensively, although with nowhere near the depth and rigor of Mr. Murch. I continue questing to discover more about this Ur-philosophy, this Meta-Creativity. I used to call it “Fractillian Thinking”, but Mr. Murch calls it “Cross-Disciplinary Thinking”, which I think is a more accurate description.
Maybe someday I’ll be lucky enough to talk with him or even work with him, and then I’d barrage him with so many questions we’d never get any work done!
Additional recommended reading:
In The Blink of An Eye by Walter Murch
The Conversations: Walter Murch and the Art of Editing Film by Michael Ondaatje














