Jazz Tangcay Artisans Editor The voice of “Wall-E,” the lightsaber sounds from “Star Wars” and Darth Vader’s breathing are just a fraction of what sound mixer, designer and editor Ben Burtt has contributed to the world of cinema. This weekend, the Academy Museum of Motion Pictures will celebrate his body of work with a special conversation and installation titled “Behold.” Though the two-time Oscar winner has over 122 credits to his name, this will be the first time he’s going to be on stage alone. “Every time I’ve been on stage, it’s been to present something or I’ve been part of a team,” Burtt tells Variety over Zoom ahead of the conversation. 1977’s “Star Wars Episode IV: A New Hope” was one of the first films he worked on. It was Burtt who created the lightsaber’s famous hum, which he says came from a broken TV set and a film projector.