Autocorrelation and average magnitude difference function are essential methods in pitch detection.

自相关法和平均幅度差函数是两种常用的基音检测方法。

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An inverse problem method is employed to determine the average magnitude of acid pollutants in groundwater in Fengshui, Zibo, Shandong.

应用反问题方法探讨山东淄博市张店区沣水南部区域地下水中硫酸盐的年入渗强度的数值反演问题。

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The endpoint detection based on short-time average magnitude of speech signals relative autocorrelation sequences can be detected in high accuracy under the low signal-to noise ratio.

在较低信噪比情况下，基于语音信号的短时相对自相关序列的短时平均幅度的端点检测能够获得较高的检测精度。

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Passphrases are, on average, several orders of magnitude harder to crack than passwords.

ECONOMIST: Online security

We don't have the accuracy yet to determine the magnitude of the average global trend, but we at least are trying to point out the signs of these trends.

CNN: Warmer tropical waters portend climate change

"A decade will, on average, include three events greater than magnitude 5, " the agency said.

CNN: Quake reported in eastern Canada