Acoustic imager makes sound visible

Image: Acoustic image

A color-coded image of an industrial site pinpoints sound coming from a passing truck as well as from equipment on the other side of a buildling. (Credit: Signal Interface Group)

Not even the click of a pen or the rustle of a shirt goes undetected by Signal Interface Group’s acoustic imager. But how about a person’s, um, rude noises?

“We don’t record those,” the company’s president, Neil Fenichel, says with a smile.

The gizmo that Fenichel demonstrated this week at Signal Interface Group’s office in Bellevue, Wash., is designed for higher purposes: to find out why an elevator is whining, where an air-conditioning system is leaking, which fluorescent light is buzzing, why a car’s engine is making a funny sound, or even how a hummingbird does its buzz.

The imaging system, developed in cooperation with Bellevue-based OptiNav, combines several tricks of the acoustic trade.

Get the full story on GeekWire.

About Alan Boyle

Aerospace and science editor for GeekWire, creator of Cosmic Log, author of "The Case for Pluto: How a Little Planet Made a Big Difference," president of the Council for the Advancement of Science Writing. Check out "About Alan Boyle" for more fun facts.
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