计算机应用与软件2013，Vol.30Issue(3)：240-243,4.DOI:10.3969/j.issn.1000-386x.2013.03.063
基于麦克风阵列的语音增强系统设计
DESIGNING SPEECH ENHANCEMENT BASED ON MICROPHONE ARRAY
摘要
Abstract
Due to the limitation of intense noise interference and difficult to restore signals of those the speech enhancement system has in near field speech environment, we design and implement a microphone array-based speech enhancement system. The novel designed system hardware adopts low-power consideration, and supports up to twelve channels' speech acquisition simultaneously. Meanwhile, it uses a novel approach to deal with noises, which adopts a way integrating the adaptive difference pulse code modulation ( ADPCM) with Kalman filtering algorithm but processing separately. MATLAB simulations and practical tests in closed near field environment are carried out. Results demonstrate that the system performance is stable and reliable, it can clearly augment speech quality, and achieve multi-channel speech enhancement in short distance.关键词
语音增强/麦克风阵列/数字信号处理器/自适应差分脉冲编码调制/卡尔曼滤波Key words
Speech enhancement/ Microphone array/ Digital signal processor ( DSP)/ Adaptive difference pulse code modulation ( ADPCM ) / Kalman filtering分类
信息技术与安全科学引用本文复制引用
朱兴宇,万洪杰..基于麦克风阵列的语音增强系统设计[J].计算机应用与软件,2013,30(3):240-243,4.
