| 一种高噪声环境下语音检测算法的仿真与应用 |
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| 引用本文： | 韩少华,陈健,傅丰林.一种高噪声环境下语音检测算法的仿真与应用[J].计算机仿真,2004,21(2):66-69. |
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| 作者姓名： | 韩少华 陈健 傅丰林 |
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| 作者单位： | 西安电子科技大学通信工程学院,陕西,西安,710071 |
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| 摘 要： | 该文提出了一种高噪声环境下的自适应语音检测新算法。该算法利用了语音短时能量及帧内短时自相关的特性，两个自适应判决门限根据期望的误判率调整，无需事先给出噪声统计信息，适用于平稳噪声、缓变的非平稳噪声及脉冲噪声的情况，且可以实时实现。
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| 关 键 词： | 语音检测算法 仿真 语音编码 语音识别 语音增强 噪声 语音信号处理 |
| 文章编号： | 1006-9348(2004)02-0066-03 |
| 修稿时间： | 2002年12月5日 |
A Speech/Nonspeech Decision Based on the Short-Time Speech Characteristics in Noise Environment |
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| HAN Shao-hua,CHEN Jian,FU Feng-lin.A Speech/Nonspeech Decision Based on the Short-Time Speech Characteristics in Noise Environment[J].Computer Simulation,2004,21(2):66-69. |
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| Authors: | HAN Shao-hua CHEN Jian FU Feng-lin |
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| Abstract: | This paper describes an adaptive method of speech detection using two thresholds on the short-time energy and in-frame auto correlation. This method needs no a priori information about noise characteristics or noise level, and the thresholds can be modified based on the expected error rate of the speech detection. This method retains the efficacy under slowly time-varying or pulse noise conditions, and can be realized in real-time. |
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| Keywords: | Speech detection Short-time energy In-frame auto correlation |
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