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Journal Article

A Procedure for Controlling Room-Ring Modes and Feedback Modes in Sound Systems with Narrow-Band Filters

Authors: Boner, C. Paul; Boner, C. R.

Journal of the Audio Engineering Society · Volume 13 · Issue 4 · pp. 297–299 · October 1965

Abstract

In order to control room-ring modes and feedback modes in sound systems, our procedure is to determine the frequency of self-oscillation of a sound system in its acoustical environment, and the frequency of each ring mode of the total system that interferes unduly with the understanding of speech or musical quality. Then, a narrow-band rejection filter, having been tuned to the particular frequency of interest, is introduced into a link circuit of the amplifier. The insertion loss of this filter is adjusted until self-oscillation in the particular frequency ceases or the disturbing effect of the particular ring mode is removed.

Details

Publication
Journal of the Audio Engineering Society
Volume
13
Issue
4
Pages
297–299
Publication date
October 6, 1965
Affiliation
Consultants in Acoustics, Austin, TX (See document for exact affiliation information.)
Type
Journal Article