重庆邮电大学学报（自然科学版）2011，Vol.23Issue(4)：432-436,5.DOI:10.3979/j.issn.1673-825X.2011.04.011
基于DSP的语音信号自适应滤波系统的设计与实现
Design and realization of the voice signal self_adaptive filtering system based on DSP
摘要
Abstract
The complex double channel system is always used in the traditional adaptive noise cancellation method. Aiming at the shortcoming, this paper proposes that the delay of original input signal is selected as the reference noise input, and then designs a single-channel system by using a DSP processor which can self-adaptively filter the voice signal. The system achieves the acquisition, transmission of voice signal and self-adaptively filters the noise signal, by seting up by TMS320VC5509 DSP and audio chip TLV320AIC23. The experimental results show that the self-adaptive filtering system can effectively separate the useful signal and noise and get a perfect playback effect.关键词
数字信号处理(DSP)/语音信号/自适应滤波Key words
DSP/voice signal/self-adaptive filtering分类
信息技术与安全科学引用本文复制引用
代少升,马东鸽..基于DSP的语音信号自适应滤波系统的设计与实现[J].重庆邮电大学学报（自然科学版）,2011,23(4):432-436,5.基金项目
国家自然科学基金(61071196) （61071196）
教育部新世纪优秀人才支持计划(NCET-10-0927) （NCET-10-0927）
信号与信息处理重庆市市级重点实验室建设项目(CSTC,2009CA2003) （CSTC,2009CA2003）
重庆市自然科学基金(CSTC,2009 BB2287 （）
CSTC,2010BB2398 （）
CSTC,2010BB2411) （）
