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Journal Article

Wide-Area Psychoacoustic Correction for Problematic Room-Modes Using Nonlinear Bass Synthesis

Authors: Hill, Adam J.; Hawksford, Malcolm O. J.

Journal of the Audio Engineering Society · Volume 59 · Issue 11 · pp. 825–834 · November 2011

Abstract

Small rooms are characterized by low-frequency resonant modes, where traditional equalization systems may not efficiently correct the response at a few narrow frequency bands. A proposed supplementary approach based on virtual bass improves output efficiency while further reducing quality variations over a wide-area. The problematic low frequencies are reduced by the equalization system and are processed to create the illusion of the reduced bass by adding harmonics of those frequencies. Subjective testing showed that the seat-to-seat variation in quality was significantly reduced but the amount of virtual bass must be limited to avoid the perception of distortion.

Details

Publication
Journal of the Audio Engineering Society
Volume
59
Issue
11
Pages
825–834
Publication date
November 6, 2011
Affiliation
University of Essex, School of Computer Science & Electronic Engineering, Colchester, Essex, UK (See document for exact affiliation information.)
Type
Journal Article