by ABD Engineering and Design | Noise and Vibration
It is common belief that a series of elbows near an air handling unit (AHU) can accomplish the same insertion loss as a manufactured duct sound attenuator. It's true that elbows are less expensive than sound attenuators, but what acoustical performance is really...
by ABD Engineering and Design | Acoustics
This past Saturday night we attended the 2009 AIA Grand Valley Honor Awards program at the Urban Institute of Contemporary Arts (UICA) in downtown Grand Rapids. As a Professional Affiliate Member of the AIA, our firm serves as consultants to architects. Although we...
by ABD Engineering and Design | Noise and Vibration
Over the years as an acoustical consultant I've seen a lot of architectural firms locate rooftop air handling units over or near acoustically sensitive spaces; then they put up resistance to doing the necessary extensive noise controls that are needed for such a...
by ABD Engineering and Design | Acoustics
As long as you haven't been living in a cave this past year, you've probably noticed that America's new favorite color is green. Even the "big, scary corporations," like Walmart and McDonalds, have re-worked their ad campaigns to reflect a more-green, environmentally...
by ABD Engineering and Design | Noise and Vibration
In the world of architecture, we frequently hear the term "mixed-use development," and our firm is increasingly called upon to provide mixed-use development acoustical consulting. The term "mixed-use" generally refers to a development that incorporates residential and...
