Entries by Pat Brown

EASERA SysTune

By Charlie Hughes

Charlie gives an overview and capabilities of Easera Systune.

EASERA SysTune™ is a relatively new, patent pending audio measurement program from the Ahnert Feistel Media Group (AFMG). It is designed for real-time analysis of acoustic signals and … Read more

B-Format Microphone Goes Mainstream

Tools of the Trade – By Pat Brown

Pat Brown gives an overview of the B-Format microphone and its capabilities.

An ongoing dilemma for those doing room acoustics measurements is the choice of microphone pattern. Omni’s are most accurate, but … Read more

It's About Time… The Effective Haas Effect

Theory and Practice – By Dale Shirk

To implement the Haas Effect, understanding the theory is a must.  Dale Shirk explains the theory and ways to implement it.

The Haas effect, or Precedence effect has been well known for many … Read more

The Oil Drop Experiment Finally Updated

by Don Davis

In 1910, Robert Millikan of the University of Chicago announced that he and Harvey Fletcher had developed a successful means of isolating and measuring the charge of an electron. This became known as “the oil drop experiment”

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What Happens When the Power Goes Off?

Theory and Practice – By Dale Shirk

Dale Shirk answers this question, “So what happens to a signal when it is driven into an unpowered input?”

Today’s audio electronics are easy to interface, with one or several high impedance inputs … Read more

Acoustic Whiplash!

Campbell’s Corner – By Dick Campbell

In this article, Dick helps us understand the benefits of acoustical scattering.

In 2001, I prepared a paper for the International Congress on Acoustics in Rome. I decided to use the CATT –Acoustic™ feature … Read more