Design of self-adaptive echo canceller
LI Wenfeng
WANG Xiaohui
SUN Xiaoye
Abstract：In view of problem of echo interference in voice communication of rescue communication system,a self-adaptive echo canceller was designed based on self-adaptive filter using normalized least mean square and voice detection module.Working principle and design scheme of the self-adaptive echo canceller were introduced.The test results show that the self-adaptive echo canceller has rapid convergence speed,which can converge to below-30 dB within 1 s,and basically eliminate audio signal echo.
Keywords：rescue communicationvoice communicationecho cancellationself-adaptive filternormalized least mean square
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 97-100 )