About Pat Brown
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Entries by Pat Brown
A Do-it-Yourself Guide to Computing the Speech Transmission Index
/by Pat BrownIn this article, Farrel Becker shares the steps required to compute the Speech Transmission Index (STI) from a measured impulse response.
The Speech Transmission Index (STI) is a method of measuring speech intelligibility in noisy and/or reverberant … Read more
Piezo Magic – Accurate Gain Structure Using a Common Device
/by Pat BrownPat Brown will show you a way to set gain structure by using a piezo tweeter.
In order to set the gain structure of a signal processing chain properly, it is necessary to determine when each device … Read more
Acoustic Measurements Without Computers
/by Pat BrownBy Pat Brown
In this article, Pat Brown shows how to record acoustic measurements without a computer and get better data.
It is difficult to describe how something sounds. The terms are vague and subjective, and often have different meanings … Read more
Early Decay Time – Wrap Up
/by Pat BrownIn this article, Pat Brown addresses some subtleties regarding early decay time calculation and significance.
The Spring installment of our Newsletter featured an exposé on the Early-Decay Time and its relevance to the design of a sound … Read more
Build Your Own Dodecahedron Loudspeaker
/by Pat BrownBy Pat Brown
In this article, Pat Brown discusses the uses of a dodecahedron loudspeaker and how to build one.
A polyhedron is a multi-sided three dimensional shape. A dodecahedron is a 12-sided polyhedron, each side being a pentagon. A … Read more
Line Array Limitations
/by Pat BrownKnowing the line array limitations is the key to using them properly.
By Dale ShirkLine array loudspeakers are a popular tool these days. But are they always the best choice? In the interest of preserving Syn-Aud-Con’s slide-rule geek image, … Read more
Shield Current Induced Noise – Causes and Solutions Part 2
/by Pat BrownShield Current Induced Noise – Jim Brown addresses the causes and some solutions.
In the last issue, we learned how current flowing on the shield of audio cables will be converted to voltage on the … Read more
Shield Current Induced Noise – Causes and Solutions
/by Pat BrownThis article addresses shield current induced noise caused by the imbalance in the magnetic coupling between the shield and the two signal conductors.
My last two columns have focused on pin 1 problems as an … Read more
Interpolated Balloons
/by Pat BrownJeremy Johnston addresses this question, “What are interpolated balloons?”
When we use modeling programs to predict the direct field coverage of a loudspeaker system in a space, we depend on the loudspeaker model to show all of … Read more
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