Entries by Pat Brown

FIR-ward Thinking – Part 1

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by Pat Brown

This is Part 1 of a series that will examine the use of FIR filters in sound reinforcement systems.

Introduction

Finite Impulse Response (FIR) filters (pronounced either “F-I-R” or alternately, like the tree) are the rage these … Read more

The Amplifier-to-Loudspeaker Interface

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By Pat Brown

Amplifier-to-loudspeaker Interface – is there anything special about hooking an amplifier to a loudspeaker? Here is a brief look at some parameters that can affect the sonic performance of this important interface.

The Ideal Case

Most analog … Read more

How Do Boundaries Affect Loudspeakers?

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By Pat Brown

Can a room boundary be a “tool of the trade” for the audio practitioner? This study will provide some insight on how boundaries affect loudspeakers.

It’s nearly impossible to mount a loudspeaker in a room without placing … Read more

Measuring RMS Voltage: Many Meters Will Do

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By Pat Brown

Pat Brown measures RMS Voltage using 5 difference meters and shares the results.

The Vrmsmax loudspeaker power test requires real-time measurement of the Root-Mean-Square (RMS) voltage of the noise stimulus. RMS measurements have been the subject … Read more

Error Sources in Loudspeaker Data

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by Pat Brown

The accuracy of sound system performance predictions are limited by a number of factors. These include but are not limited to the loudspeaker data.

Much good research has been done in recent years on loudspeaker data formats … Read more

Balloon Data for a MultiCell Horn

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By Pat Brown

Pat Brown provides balloon data for a multicell horn.

Sooner or later all audio people encounter the multicell horn. Multicells have been around since the middle of the last century, and many can be restored to working … Read more