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基音周期标准化与嵌入式语音识别系统
引用本文:王宏,王先梅,杨扬. 基音周期标准化与嵌入式语音识别系统[J]. 计算机工程与应用, 2009, 45(10): 11-12. DOI: 10.3778/j.issn.1002-8331.2009.10.004
作者姓名:王宏  王先梅  杨扬
作者单位:北京科技大学,信息工程学院,北京,100083;北京科技大学,信息工程学院,北京,100083;北京科技大学,信息工程学院,北京,100083
摘    要:根据不同人发相同音节时,一个基音周期内的波形具有一定相似性的特点,提出一种新的基音周期标准化的语音信号预处理方法。该方法在一个嵌入式的、非特定人、孤立数字的语音识别系统中进行了验证,实验结果表明基音周期标准化能有效提高语音识别的准确率。

关 键 词:基音周期标准化  语音识别  嵌入式系统
收稿时间:2008-12-02
修稿时间:2009-1-7 

Normalization of pitch period in embedded speech recognition system
WANG Hong,WANG Xian-mei,YANG Yang. Normalization of pitch period in embedded speech recognition system[J]. Computer Engineering and Applications, 2009, 45(10): 11-12. DOI: 10.3778/j.issn.1002-8331.2009.10.004
Authors:WANG Hong  WANG Xian-mei  YANG Yang
Affiliation:School of Information Engineering,University of Science and Technology of Beijing,Beijing 100083,China
Abstract:Based on the similarity of the sound wave in a pitch period when different speakers articulate the same syllables,a new pre-process method of speech signal,normalization of pitch period has been proposed in this paper.The new pre-process method has been applied in an embedded speech recognition system designed for speaker-independent isolated digitals recognition.The experiment proves that the use of normalization of pitch period can obviously increase the accuracy of the recognition rate.
Keywords:normalization of pitch period  speech recognition  embedded system
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