DocumentCode
2861570
Title
Development and implementation of adaptive echo cancellation techniques
Author
Kuo, Sen M. ; Yan, Yung-Jeng
Author_Institution
Dept. of Electr. Eng., Northern Illinois Univ., DeKalb, IL, USA
fYear
1998
fDate
1998
Firstpage
494
Abstract
In telecommunications, the echo canceler using an adaptive filter is the most effective technique for controlling echoes. This paper presents the structure of an echo canceler based on two different echo path models. The speech detectors use a three-variable-length window technique as the far-end speech detector. Double-talk detectors based on the echo return loss enhancement (ERLE) are also developed and evaluated. The overall systems have been implemented on the TMS320C54x
Keywords
adaptive filters; adaptive signal detection; echo suppression; filtering theory; speech processing; telecommunication; TMS320C54x; adaptive echo cancellation; adaptive filter; double-talk detectors; echo path models; echo return loss enhancement; far-end speech detector; telecommunications; three-variable-length window; Adaptive filters; Background noise; Detectors; Echo cancellers; Electric variables control; Logic; Speech; Telecommunication control; Telephony; Working environment noise;
fLanguage
English
Publisher
ieee
Conference_Titel
Signal Processing Proceedings, 1998. ICSP '98. 1998 Fourth International Conference on
Conference_Location
Beijing
Print_ISBN
0-7803-4325-5
Type
conf
DOI
10.1109/ICOSP.1998.770258
Filename
770258
Link To Document