Title :
Noise reduction based on microphone array with LMS adaptive post-filtering
Author_Institution :
Deutshe Bundespost Telekom Res. Inst., Berlin, Germany
Abstract :
The author presents a self-adapting noise reduction system which is based on a 4-microphone array combined with an adaptive Wiener filter. The LMS algorithm is used for adaptation. This filtering structure allows a simple implementation in the time domain on a sample-by-sample basis.
Keywords :
acoustic noise; acoustic signal processing; adaptive systems; audio systems; filters; interference suppression; microphones; signal processing equipment; LMS adaptive post-filtering; LMS algorithm; acoustic room noise; adaptive Wiener filter; microphone array; sample-by-sample basis; self-adapting noise reduction system;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19901314
