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
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;
Conference_Titel :
Signal Processing Proceedings, 1998. ICSP '98. 1998 Fourth International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-4325-5
DOI :
10.1109/ICOSP.1998.770258
