在混合激励线性预测低速率语音编码研究中，提出了一种新的归一化自相关函数实时基音检测算法。

In the research of mixed excitation linear prediction speech coding, a new real-time normalized correlation function pitch detection algorithm is proposed.

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阐述了一种新的基于语音线性预测模型和经典自相关函数法的基音周期检测算法。

In this paper, a new pitch detection method based on classical autocorrelation function is proposed.

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时域分析方法是最简单、最直观的方法，其中我们采用短时能量、短时过零率、短时自相关函数等方法来分析语音。

The time domain analysis is most simple and intuitionistic. The short-time energy, the short-time zero crossing rate and the short-time self-correlation are main analysis method in time domain.

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