On the poor robustness of sound equalization in reverberant environments

Author

Radlovic, Biljana D. ; Williamson, Robert C. ; Kennedy, Rodney A.

Author_Institution

Dept. of Eng., Australian Nat. Univ., Canberra, ACT, Australia

Volume

2

fYear

1999

fDate

15-19 Mar 1999

Firstpage

881

Abstract

This paper examines the sensitivity of sound equalization to source or microphone position changes in a reverberant room. It is demonstrated that even small displacements from the reference (equalization) point, of the order of a tenth of the acoustic wavelength, can cause large degradations in the equalized room response. The general theory developed in this paper, which implies that the sound equalization in practical environments may be an ill-posed problem, is verified by the simulation results averaged over different source and microphone positions

Keywords

acoustic signal processing; architectural acoustics; equalisers; microphones; reverberation; equalized room response; ill-posed problem; microphone position; reverberant environments; reverberant room; robustness; sound equalization; source positions; Acoustic waves; Acoustical engineering; Degradation; Filters; Frequency response; Information technology; Microphones; Reverberation; Robustness; Speech;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1999. Proceedings., 1999 IEEE International Conference on

Conference_Location

Phoenix, AZ

ISSN

1520-6149

Print_ISBN

0-7803-5041-3

Type

conf

DOI

10.1109/ICASSP.1999.759812

Filename

759812