【作者】 王炜； 杨道淳； 徐柏龄；

【Author】 Wang Wei Yang Daochun Xu Boling (State Key Laboratory of Modern Acoustics and Institute of Acoustics, Nanjing University,Nanjing 210093)

【机构】 南京大学声学研究所近代声学国家重点实验室；

【摘要】 本文以小波包分析的方法模拟人耳基底膜的频率分析特性,结合听觉模型的掩蔽效应确定除噪阈值。在无参考声源的条件下,对含噪语音的增强取得了明显的效果。实验结果表明本方法语音增强结果比改进后的频谱减法有更高的清晰度和可懂度。更多还原

【Abstract】 A speech enhancement method based on masking properties of the human auditory system is described.This method uses wavelet packet transform to simulate the frequency feature of human auditory model. The threshold of this system is adapted according to the masking properties,both in the time and frequency domains.Experimental results have shown that this method provides speech of better clearness and intelligibility than conventional methods do.更多还原