Sound System Engineering 4e, 4th Edition

Chapter 11

Audio and Acoustic Measurements

by Don Davis

11.1   Acoustic Analysis Sans Instrumentation

11.2   Initial Parameters

11.3   Acoustic Tests of Sound Systems

Acoustic Test Signals

Where to Place the Microphone

Measurement Analyzers

11.4   Examining AC Outlets

First, Look and Listen

11.5   The ETC Plot

Impulse Response

The Heyser Spiral

The Magnitude and Phase Response

Three Parameter Measurements

The Nyquist Plot

The Polar Envelope Time (PET) Plots

History of Polar Time Measurements

11.6   Site Surveys and Noise Criteria Curves

Constant Percentage Bandwidth Analysis

11.7   An Improper Use of Real Time Analysis

11.8   Evaluation of Listener Response

11.9   Fractional Bandwidth Filter Analyzers

Series

Other Uses

Useful Tools

Using the ...