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：2012
卷号：3
期号：3
页码：93
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：The paper explains the effectiveness of Active Noise Control (ANC) System based on adaptive filter forreducing noise from a noisy speech. ANC generally reduces low frequency noise and creates a quiet zone.In this paper a feedforward ANC is used for reducing low frequency noise from a noisy speech signal forimproving speech quality. Secondary path transfer function has been compensated using FXNLMS(Filtered-X NLMS) algorithm. The proposed system is analyzed and simulated on a digital computer. Theperformance of the system is evaluated by measuring noise power reduction in the noisy speech byretaining the intelligibility of the speech signal. Simulation results reveal that the method can reduce noisepower to a level of -11.6dB.
关键词：Active noise control; Active noise cancellation; Adaptive systems; Speech processing; Digital Signal;Processing Application.
