We Engineer Quiet®

1001 State St
Chicago Heights, IL  60411
​United States



​+1 248 227 7258


NVH Specialists

Made in America
​for over 30 years.

Applied Acoustics International® (AAI) is a Tier 1 supplier of noise, vibration, and harshness (NVH) solutions to the North American automotive industry.  


Our products keep cars, trucks, SUVs and other vehicles quiet.