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B. 实验室中音响信号的强度
原标题:Intensity of sound signal in matlab

我的同胞们 st忙地试图找到声音的强度。 我搜查了许多东西,但没有得到任何很好的答案或帮助。 如果有人能够指导我,我将非常感激。

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最佳回答

https://en.wikipedia.org/wiki/Root_mean_square”rel=“nofollow” 信号价值,例如,如果你的样本在X中:

intensity_RMS = sqrt(sum(X.*X)/length(X));
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