计算机工程与应用 ›› 2011, Vol. 47 ›› Issue (19): 144-146.
• 数据库、信号与信息处理 • 上一篇 下一篇
李 强，黄 冰，王 苗
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LI Qiang，HUANG Bing，WANG Miao
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摘要： 提出了一种基于小波降噪的改进型顺序统计滤波器（OSF）语音端点检测算法。在介绍了浊音分离、小波降噪和基于顺序统计滤波器（OSF）端点检测算法的原理基础上，给出了改进型算法的流程图和实验的仿真图。从结果可以看出，算法对信噪比大于0 dB的语音信号，检测性能较为稳健。
关键词: 小波降噪, 顺序统计滤波器, 端点检测, 低信噪比
Abstract: This paper presents a modified voice activity detection using order statistics filter with wavelets denoising.It describes the principles of voiced-sound separation，noise reduction using wavelets and voice activity detection based on OSF.It gives a flow-process diagram of the modified algorithm，and gets the result of simulation through several experiments.It shows that the performance of the modified algorithm is robust when the signal-to-noise ratio greater than 0 dB.
Key words: wavelets denoise, order statistics filter, voice activity detection, low signal-to-noise ratio
李 强，黄 冰，王 苗. 基于小波降噪的改进型OSF话音激活检测算法[J]. 计算机工程与应用, 2011, 47(19): 144-146.
LI Qiang，HUANG Bing，WANG Miao. Modified voice activity detection based on wavelets using order statistics filter[J]. Computer Engineering and Applications, 2011, 47(19): 144-146.
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