| 一种结合短时过零率的快速语音端点检测算法 |
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| 引用本文： | 蔡萍.一种结合短时过零率的快速语音端点检测算法[J].厦门理工学院学报,2013(2):48-51. |
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| 作者姓名： | 蔡萍 |
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| 作者单位： | 闽江学院物理学与电子信息工程系,福建福州350108 |
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| 摘 要： | 针对传统的频带方差检测算法运算量较大的问题,提出一种结合短时过零率的快速算法.该算法通过将平方运算转换为求绝对值运算,减小了计算量;绝对值运算相当于在相邻帧之间进行＂谱减＂,有效地抑制了白噪声的干扰,在低信噪比条件下显示出其优越性.
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| 关 键 词： | 检测算法 语音信号 端点检测 频带方差 短时过零率 |
A Fast Algorithm of Speech End-Point Detection Combined with Short-Time Zero Crossing Rate |
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| CAI Ping.A Fast Algorithm of Speech End-Point Detection Combined with Short-Time Zero Crossing Rate[J].Journal of Xiamen University of Technology,2013(2):48-51. |
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| Authors: | CAI Ping |
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| Institution: | CAI Ping ( Department of Physics ＆ Electronic Information Engineering, Minjiang University, Fuzhou 350108, China) |
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| Abstract: | In order to solve the problem of big computation efforts of traditional spectral variance method, this paper puts forward a new algorithm combined with short time zero crossing rate. By converting square calculation to ABS function, this approach reduces calculation amount. Meanwhile, ABS function suppresses the interference of white noise effectively as it is equivalent to spectral subtraction between adjacent frames. This algorithm is superior to others in condition of low SNR. |
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| Keywords: | detection algorithm voice signal end-point detection spectral variance short time zero crossing rate |
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