文章基本信息

标题：An Improved ANC System with Application to Speech Communication in Noisy Environment
本地全文：下载
作者：Narayanan N. K ; Sivadasan Kottayi
期刊名称：Signal & Image Processing : An International Journal (SIPIJ)
印刷版ISSN：2229-3922
电子版ISSN：0976-710X
出版年度：2015
卷号：6
期号：4
页码：47
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：A new two stage FxNLMS algorithm based ANC system with secondary path modelling was proposed in[15].Performance analysis of this system with real signals has been carried out using computer simulation.Simulation studies showed that the system after trained with WGN can be successfully used for reducingwide sense broad band noise.This paper also explores the intelligibility of speech signals in the quiet zonecreated by the ANC system. The utterances of phonetically balanced Harvard sentences with differentSNRs are propagated through the quiet zone and the intelligibility of the resultant speech signal ismeasured using MOS (Mean Opinion Score) test. Encouraging results are obtained which indicates thatthe two stage FxNLMS algorithm based ANC system can find application in mobile phone communication
关键词：Active noise control; speech intelligibility; FxLMS algorithm; online secondary path modelling; Adaptive;systems; DSP applications