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41

Directivity Reference for System Design

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by Pat Brown

The key to working in the field of audio and acoustics is to understand the need to establish a reference condition. This allows changes to be assessed objectively. You need a “known” in order to determine unknowns.… Read more

44

Line Array Intelligibility Study

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by Pat Brown

A demonstration and investigation of seven active beam-steered arrays and a passive array Intelligibility study in a reverberant space.

Active beam-steered line arrays have become popular for use in large, reverberant spaces. They can produce a strong … Read more

45

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

46

Room Measurements and Signal-to-Noise Ratio

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by Pat Brown

In this article, Pat Brown gives a step-by-step process of making room measurements in an exhibition hall where signal-to-Noise ratio was a problem.

In June, 2011 I presented some measurements made at the Sunrise Auditorium in Sao … Read more

47

Loudspeaker Grille Percentage Perforation

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by Steve Liddle

Loudspeaker Grille Percentage Perforation – Steve Liddle takes four loudspeaker grilles and measures the effect of the frequency response on each of them.

The Heard strikes again! A recent thread on the SynAudCon Email Discussion Group prompted … Read more

49

Room Measurements for Sunrise Auditorium – Sao Paulo, Brazil

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by Pat Brown

Pat Brown shows the process of collecting room measurements in Sunrise Auditorium.

The Convention Center at AES-Brazil included a 2300-seat auditorium. It is an architecturally interesting space constructed in the 1970s. The fluted ceiling structure is concrete … Read more

50

Covert Room Measurement

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by Pat Brown

Pat shared a quick way to get a room measurement using a balloon pop.

Cathedral of San Juan BautistaWe conducted SynAudCon training in Puerto Rico in December 2010. San Juan is the oldest city in the US, and contains some very … Read more