Improvement of algorithms for control of noise using common acoustical poles of a room

Author

González, A. ; de Diego, M. ; Albiol, A. ; Vergara, L.

Author_Institution

Dept. de Commun., Univ. Politecnica de Valencia, Spain

Volume

2

fYear

1995

fDate

6-10 Nov 1995

Firstpage

824

Abstract

In this paper a model for a room transfer function (RTF) using common acoustical poles is applied to achieve active noise cancelation (ANC) in a small reverberant room. An algorithm has been developed and studied which is an improved version of the multiple error LMS (MELMS) algorithm. The new one is more suitable in practical real time implementations. A comparison between the new algorithm and the MELMS has also been made. The results show that similar noise reductions can be achieved by both algorithms, but it must be noted that the new one requires far fewer storage and computational power requirements

Keywords

acoustic noise; active noise control; architectural acoustics; poles and zeros; reverberation; reverberation chambers; transfer functions; CAPZ; active noise cancelation; common acoustical pole and zero; common acoustical poles; multiple error LMS algorithm; noise control; noise reductions; room transfer function; small reverberant room; Acoustic noise; Adaptive algorithm; Filters; Least squares approximation; Loudspeakers; MIMO; Microphones; Reverberation; Sensor systems; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, Control, and Instrumentation, 1995., Proceedings of the 1995 IEEE IECON 21st International Conference on

Conference_Location

Orlando, FL

Print_ISBN

0-7803-3026-9

Type

conf

DOI

10.1109/IECON.1995.483835

Filename

483835