Opens in a new tab

AES E-Library

← Back to search

Journal Article

In Situ Measurement and Equalization of Sound Reproduction Systems

Authors: Schulein, Robert B.

Journal of the Audio Engineering Society · Volume 23 · Issue 3 · pp. 178–186 · April 1975

Abstract

The concept of frequency response is of basic importance to audio reproduction equipment. When analyzing electronic equipment, this characteristic is seldom a problem of measurement or interpretation. It is a problem, however, for acoustical transducers such as loudspeakers. Unlike electronic equipment which has both electrical input and output terminals, the loudspeaker has an electrical input terminal but an acoustical output. This acoustical output is further complicated by the fact that a room is always interposed between the loudspeaker and the acoustical measuring device. With the human as the ultimate evaluation instrument, various measurement and interpretation questions arise regarding frequency response, variations among listeners, and effect of program material. The major question, however, is just what the frequency response of a particular sound reproduction system should be. In order to answer these questions, several psychoacoustical experiments were devised, based upon a listener's ability to detect differences. These experiments and their results are described in detail as they relate to the following types of sound reproduction systems: 1) sound reinforcement systems, 2) studio monitoring systems, 3) home high-fidelity systems.

Details

Publication
Journal of the Audio Engineering Society
Volume
23
Issue
3
Pages
178–186
Publication date
April 6, 1975
Affiliation
Shure Brothers, Inc., Evanston, IL (See document for exact affiliation information.)
Type
Journal Article