matbal中的信号强度 [英] Intensity of signal in matbal

问题描述

如何使用matlab计算信号强度？



我尝试过：



i希望实现这篇文章

how can i calculate the intensity of signal with matlab?

What I have tried:

i want to implement this article

推荐答案

没有这篇文章，但音频强度定义为=> 0.5 Re {p v *}其中v *是速度的复共轭，p是压力。这被称为强度的活跃部分，你可以采用Im {}来获得反应部分，但我们通常不关心这一点。如您所见，为了获得实际强度，您需要获取校准值，而不是波形文件（或音频文件中的任何格式）。

Don't have the article, but intensity in audio is defined as => 0.5 Re{p v*} where v* is the complex conjugate of the velocity and p is the pressure. This is called the active part of the intensity, you could take Im{} to get the reactive part as well but we normally don't care about that. As you see, in order to get the actual intensity, you need to get the calibrated values, not jus the wave file (or whatever format you have on the audio file).

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