平均幅度差语音分析我要分享

Speech analysis of mean amplitude difference

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中文说明:自相关虽然能够判断清/浊音,并估计浊音的基音周期,但是其运算量很大,用乘法运算所需时间较长。为了避免乘法,采用短时平均幅度差函数(AMDF),验证AMDF与自相关有类似的作用,即平均幅度差函数能够代替自相关函数进行语音分析。


English Description:

Although autocorrelation can judge voiced / unvoiced sounds and estimate the pitch period of voiced sounds, it has a large amount of computation and takes a long time to multiply. In order to avoid multiplication, the short-term average amplitude difference function (AMDF) is used to verify that AMDF has similar effect with autocorrelation, that is, AMDF can replace autocorrelation function for speech analysis.


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