DocumentCode
1003309
Title
Acoustic echo cancellor with sub-band noise cancelling
Author
Yasukawa, Hiroshi
Author_Institution
NTT Transmission Syst. Labs., Yokosuka, Japan
Volume
28
Issue
15
fYear
1992
fDate
7/16/1992 12:00:00 AM
Firstpage
1403
Lastpage
1404
Abstract
An acoustic echo canceller with sub-band noise cancelling that employs a cascade configuration is proposed. The adaptation control adopted to match the occurrence of intermittent speech/echo and continuous room noise using the NLMS algorithm is very effective in echo and noise cancellation. Hardware is implemented and its performance evaluated through experiments. The noise cancellation significantly enhances overall echo-cancellation performance.
Keywords
acoustic signal processing; adaptive filters; echo suppression; noise abatement; NLMS algorithm; acoustic echo canceller; adaptation control; audio teleconferencing; cascade configuration; continuous room noise; echo-cancellation performance; intermittent speech/echo; sub-band noise cancelling;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19920892
Filename
256039
Link To Document