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分析语言讯号的概率分布有两种方法:瞬时值和动态电平。本文只讨论瞬时值的情形。实际上测量随机讯号的概率分布是取样并按时间来统计。设所量测的讯号是ζ(t),则概率分布函数的测量值为
There are two ways to analyze the probability distribution of speech signals: instantaneous value and dynamic level. This article only discusses the instantaneous value of the situation. In fact, the probability distribution of the measured random signal is sampled and counted in time. Let the measured signal be ζ (t), then the probability distribution function is measured