Entries by Pat Brown

And Another Loudspeaker Array Study

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By Pat Brown

This is the latest of a series of measured vs predicted comparisons that Pat Brown conducted on various loudspeaker array types.

Loudspeaker arrays are very difficult to measure. They are large, heavy, and difficult to rotate about … Read more

Book Review: Riding the Waves

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On the shoulders of Giants – By Don Davis

A Book Review: Riding the Waves – A life in Sound, Science, and Industry by Leo Berank

At a still vigorous 93 years, this book relates his triumphs, tragedies, and the

… Read more

EASERA SysTune

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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

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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

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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

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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”

… Read more