| 基于数字信号处理实现VOX技术 |
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| 引用本文： | 曾光,薛豪杰,毛英磊,毛凯赟.基于数字信号处理实现VOX技术[J].舰船科学技术,2012,34(1):125-127. |
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| 作者姓名： | 曾光 薛豪杰 毛英磊 毛凯赟 |
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| 作者单位： | 上海船舶设备研究所,上海,201108 |
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| 摘 要： | 介绍一种用数字方式实现VOX功能的方法。根据语音信号的特征及短时分析技术,利用语音信号能量和过零率相结合检测方法,可有效进行有声/无声判断。根据所述检测原理和实现方法,进行了不同信噪比条件下的仿真分析。经过实际应用测试,该系统易于实现,实时性好。
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| 关 键 词： | VOX 语音信号处理 短时分析 过零率 |
Realization of VOX technology based on digital signal processing |
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| ZENG Guang
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XUE Hao-jie
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MAO Ying-lei
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MAO Kai-yun.Realization of VOX technology based on digital signal processing[J].Ship Science and Technology,2012,34(1):125-127. |
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| Authors: | ZENG Guang XUE Hao-jie MAO Ying-lei MAO Kai-yun |
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| Institution: | (Shanghai Marine Electronic Equipment Research Institute,Shanghai 201108,China) |
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| Abstract: | This paper introduces a method to realizate VOX digitally.Based on voice signal character and short-time speech signal analysis and using the energy and pass-zero probability to detect voice in noise.According to the referred detecting theory and implementations,simulation has been done at various SNR.After real testing,the system which is good for estimating the speech/silence can run real-time and realize easily |
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| Keywords: | VOX speech signal process short-time analysis zero-pass frequency |
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