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Sound Camera can Pinpoint Noise


Sound Camera

A faculty member at the Korea Advanced Instiute of Science and Technology has developed a “sound camera” that promises to help locate the source of a noise, which can help in diagnosing mechanical problems like a lifter tick or a rod knock. The 4-pound device uses 30 speakers in a spiral array to determine the source of a noise and displays a picture with a heat map that’s similar to an infrared thermal image. The image below shows noise radiating from the source, which is red.



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There was no mention of how the device would target specific sounds and ignore the normal mechanical noises an engine is supposed to make, or how much the sound camera would cost. It should have stiff competition in the marketplace, because the current go-to mechanical noise pin-pointer retails for about $15.





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Categories: Editorials