【摘要】 本文主要提出了新的变步长LMS算法,并介绍了TI公司的DSP芯片TMS320VC5402与音频芯片TLV320AIC23的硬件接口设计。利用TLV320AIC23来采集带噪语音信号,然后应用新的变步长LMS算法对带噪语音信号作自适应滤波处理,达到了有效地抑制噪声,提高信噪比,减少失真的效果。更多还原

【Abstract】 This paper mostly proposes a new LMS algorithm and introduces the design of the hardware interface between TI ’s TMS320VC5402 DSP and TLV320AIC23.Obtaining audio signal mixed with noises by TLV320AIC23;Then using this new variable step size LMS algorithmad in noise filterring,which can not only effectively restrain noise but also cut down the distortion to enhance SNR(Signal-to-Noise).更多还原