Noise and Vibration | ABD Engineering & Design

The Problem with Pulpers | Noise and Vibration Control

by ABD Engineering and Design | Noise and Vibration

We were recently called in to assist in addressing a noise issue that was the result of a university's desire to be more "green". In this case, we were asked to assess the noise produced in the dish wash room of a university student union. This blog is the second of a...

If It Sounds Like Noise to You, It May Be “Esion”

by ABD Engineering and Design | Noise and Vibration

Fundamentally, sound is "that which we hear". What we hear at any given time can greatly influence us. We use sound to communicate, to express warning, fear, pleasure and excitement. Some sounds can relax us and help us fall asleep, while other sounds can distract us...

When One Size Does Not Fit All | Diffuser Sound Levels

by ABD Engineering and Design | Noise and Vibration

On a recent trip to India, I discovered a cute clothing sizing term called "free size" which is equivalent to "one size fits all". Free size clothing must be a manufacturer's delight since production and distribution are greatly simplified. Adjustments to the size of...

Elbows vs. Sound Attenuators: Interchangeable?

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...

Why Courts Need an Expert Witness in Acoustics

by ABD Engineering and Design | Noise and Vibration

Our company president, Kenric Van Wyk, was recently featured in a Wood TV 8 interview as an expert on noise levels. The local NBC affiliate was covering a story on a teenager who had been killed by a train after walking down the tracks while listing to an MP3 player...

Rooftop Roulette | Noise and Vibration Isolation for Air Handlers and Mechanical Units

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...

The Problem with Pulpers | Noise and Vibration Control

If It Sounds Like Noise to You, It May Be “Esion”

When One Size Does Not Fit All | Diffuser Sound Levels

Elbows vs. Sound Attenuators: Interchangeable?

Why Courts Need an Expert Witness in Acoustics

Rooftop Roulette | Noise and Vibration Isolation for Air Handlers and Mechanical Units

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