Psychoacoustical excitation of the (N)LMS algorithm for acoustical system identification

Author

Peters, Mike

Author_Institution

Res. & Dev. Center, BMW AG, Munich, Germany

fYear

1999

fDate

1999

Firstpage

211

Lastpage

214

Abstract

This paper presents an algorithm and an implementation of orthogonal perfect correlation sequences for acoustical system identification using psychoacoustical masking effects. Therefore, the common NLMS-algorithm has been modified to incorporate hidden orthogonal Ipatov- and Huffman sequences for fast system identification. Using this method, the speed and accuracy of the identification of the loudspeaker-room-microphone (LRM)-system is increased and the overall-performance of echo and noise cancellation has been improved

Keywords

audio signal processing; correlation methods; echo suppression; identification; least mean squares methods; sequences; speech processing; Huffman sequences; Ipatov sequences; LMS algorithm; LRM-system; NLMS-algorithm; acoustical system identification; echo cancellation; fast system-identification; loudspeaker-room-microphone system; masking effects; noise cancellation; orthogonal perfect correlation sequences; psychoacoustical excitation; Humans; Masking threshold; Mobile communication; Noise cancellation; Psychology; Radar detection; Research and development; Speech coding; Spread spectrum radar; System identification;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Signal Processing to Audio and Acoustics, 1999 IEEE Workshop on

Conference_Location

New Paltz, NY

Print_ISBN

0-7803-5612-8

Type

conf

DOI

10.1109/ASPAA.1999.810887

Filename

810887