| 一种语音端点检测电路的设计 |
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| 引用本文： | 马瑞,张盛兵,郑乔石.一种语音端点检测电路的设计[J].计算机工程与应用,2010,46(14):69-71. |
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| 作者姓名： | 马瑞 张盛兵 郑乔石 |
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| 作者单位： | 西北工业大学,计算机学院,西安,710072 |
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| 基金项目： | 西北工业大学研究生创新中心项目No.07050~~ |
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| 摘 要： | 在基于短时能量和短时过零率的双门限语音端点检测算法基础上，改进其有效语音的判断条件，采用MATLAB工具分析了改进算法的有效性。提出了基于改进算法的语音端点检测电路的设计，该设计减少了实现语音端点检测电路对硬件资源的需求。ModelSim仿真验证表明，改进后的算法有较好的实时性，在采集完一帧语音数据后第4拍给出语音有效信号。最后给出该语音检测电路的FPGA验证平台。
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| 关 键 词： | 双门限检测 语音端点检测 MATLAB工具箱 现场可编程门阵列 |
| 收稿时间： | 2009-2-27 |
| 修稿时间： | 2009-4-7
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Design of voice active detection circuit |
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| MA Rui,ZHANG Sheng-bing,ZHENG Qiao-shi.Design of voice active detection circuit[J].Computer Engineering and Applications,2010,46(14):69-71. |
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| Authors: | MA Rui ZHANG Sheng-bing ZHENG Qiao-shi |
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| Affiliation: | Department of Computer Science and Engineering,Northwestern Polytechnical University,Xi＇an 710072,China |
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| Abstract: | This paper properly improves the effective voice messages'criterion of a Voice Active Detection(VAD) algorithm,which is based on short-term energy feature and short-time zero-crossing rate.MATLAB simulation shows the validity of the improved algorithm.Furthermore,this paper puts forward a circuit solution on the VAD algorithm,which needs less hardware resources than previous algorithm.ModelSim simulation result proves that the design has a good real-time ability and can give the effective voice endpoint in ... |
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| Keywords: | double threshold detection Voice Active Detection(VAD) MATLAB Field Programmable Gate Array(FPGA) |
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