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。
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.
出处
《计算机工程与应用》
CSCD
北大核心
2009年第10期11-12,44,共3页
Computer Engineering and Applications
基金
国家自然科学基金No.60873192~~
关键词
基音周期标准化
语音识别
嵌入式系统
normalization of pitch period speech recognition embedded system
