I am writing a Praat script to measure center of gravity in fricatives. I don't understand what the difference is in the power values. The manual says "Common values are 2, 1, or 2/3", but I don't understand what that means for my measurements, exactly. Which value is useful for measuring what? Or, what values are useful in what situations? Thank you.

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    Using a power>1 emphasizes the difference in loudness between the frequencies, giving more weight to the louder, while a power<1 gives less weight to loudness. – amI Jan 11 '18 at 23:38

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