Title :
Psychoacoustical excitation of the (N)LMS algorithm for acoustical system identification
Author_Institution :
Res. & Dev. Center, BMW AG, Munich, Germany
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;
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
DOI :
10.1109/ASPAA.1999.810887
