数据采集与处理2017，Vol.32Issue(2)：307-313,7.DOI:10.16337/j.1004-9037.2017.02.011
一种广义旁瓣抵消器结构的语音增强改进算法
Improved Speech Enhancement Algorithm with Generalized Sidelobe Canceller
摘要
Abstract
In speech enhancement algorithm based on generalized sidelobe canceller (GSC),when there is an error in direction estimating,the target speech cannot be blocked by blocking matrix (BM) module completely.Then in the multiple-input canceller (MC) module,the target speech will be eliminated,which will cause the leakage of the target speech.In this paper,a new optimization algorithm is proposed for the leakage of the speech caused by the error of signal direction of arrival (DOA).First,we adjust the spectrum of the signal with time delay compensation,then the blocking matrix would be adjusted adaptively according to the characteristics of the correlation between the final output of MC module and the output of BM module.The estimated direction can be closer to the real target speech direction in order to reduce the leakage of the target speech.Simulation results show that the proposed algorithm has better speech enhancement performances in both objective and subjective evaluations.关键词
广义旁瓣抵消器/自适应算法/语音增强/麦克风阵列Key words
generalized sidelobe canceller/adaptive algorithm/speech enhancement/microphone array分类
信息技术与安全科学引用本文复制引用
李斌,张玲华..一种广义旁瓣抵消器结构的语音增强改进算法[J].数据采集与处理,2017,32(2):307-313,7.基金项目
江苏省高校自然科学研究重大项目(13KJA510003)资助项目 （13KJA510003）
江苏省高校优势学科建设工程(PAPD)资助项目 （PAPD）
江苏省普通高校研究生科研创新计划(KYLX15_0851)资助项目. （KYLX15_0851）
