Tag Archive for: Reflections

Collecting Binaural Data for Recordings – Accuracy vs Realism

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By Pat Brown

This article will look at some of the ways to get binaural data with emphasis on microphone techniques.

The human auditory system is equipped with two input ports – the left and right ears. This “binaural” processing … Read more

The Floor-Bounce-Effect – Mic Placement for Equalization

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By Pat Brown

Pat Brown addresses the importance of considering the floor-bounce-effect in the equalization process.

When a microphone or listener is positioned above the floor plane, the reflection produced by the floor modifies what is heard by the listener. … Read more

Room Modeling Details

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by Pat Brown

This article will answer this question: Room modeling for loudspeaker coverage in high detail takes a lot of time. Is it worth it?

Introduction

In “The Octagon – Part 2” I presented computer-based room models of varying … Read more

A Do-it-Yourself Guide to Computing the Speech Transmission Index

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By Farrel Becker

In 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

Sound System Designers Site Surveys – Three things to Consider

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By Pat Brown

Sound System Designers site surveys should include the Acoustical environment, Ambient noise and radio frequency survey.  Learn why these are so important.

Site surveys are a necessary part of all construction trades. The ground must be firm … Read more

Early Decay Time – Wrap Up

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By Pat Brown

In 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

Ideal vs Real Loudspeaker Directivity

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By Pat Brown

Understanding the ideal loudspeaker directivity will form an understanding of the trade-offs involved in real-world devices.

When it comes to loudspeakers and the audio marketplace, one word comes to mind-diversity. How can there be so many different … Read more

What's a DLL? and when do I need one?

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By Pat Brown

This article addresses some specifics of the direct field prediction process, specifically the sound radiation patterns from loudspeaker arrays and if DLL is a useful too.

The predictions performed by acoustic prediction software can be divided into … Read more

Fixing the Drywall Box

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A low budget solution to a common acoustical problem

Theory and Practice – By Dale Shirk

With today’s financial pressures, many churches and schools are trying to build their facilities as inexpensively as possible. Almost invariably, this leads to the … Read more

"In Situ" Absorption Coefficients – Part 2

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Meaningful Metrics – By Pat Brown

The best data comes from actual measurements. The absorption coefficients of a surface can be measured “in situ” with almost any measurement system. Here is a method and some caveats.

If you own a … Read more