Automotive Industries

Issue: Jul 2003

Interior Noise Reduction

Attacking sound at the source.

by Brent Haight

Customers are beginning to make greater demands for quieter automobiles, and because of this, automakers have begun to attack sound inside the passenger compartment with greater ferocity. Thanks to advanced engineering capabilities and improvements in materials technologies, what used to be thought of as an uncontrollable source of unwanted sound is now fair game in the quest to reduce interior noise. From front and side windshields, to tire wells and the engine compartment itself, nothing has been left unexplored when it comes to finding new ways to ensure a quieter driving experience.

"There is an increased sensitivity toward noise, from a personal standpoint and a societal standpoint," says Daniel Maguire, technical director , active systems, at Cooper Standard. "You see increasing links between noise and vibration and fatigue, noise and hearing loss.

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