How to display energy intensity results with calc aint in Onscale Analyst

In this video, I will show you how to display the energy intensity result in Onscale Analyst Mode!

You have for that to use a command called “calc aint” that you add to the analyst script

What is sound intensity?

Here’s a quick wikipedia definition of the sound intensity if you need:

Sound intensity level also known as acoustic intensity is defined as the power carried by sound waves per unit area in a direction perpendicular to that area. The SI unit of intensity, which includes sound intensity, is the watt per square meter (W/m²). One application is the noise measurement of sound intensity in the air at a listener’s location as a sound energy quantity.^[1]

Sound intensity is not the same physical quantity as sound pressure. Hearing is directly sensitive to sound pressure which is related to sound intensity. In consumer audio electronics, the level differences are called “intensity” differences, but sound intensity is a specifically defined quantity and cannot be sensed by a simple microphone. The rate at which sound energy passes through a unit area held perpendicular to the direction of propagation of sound waves is called intensity of sound.

The “calc aint” command:

This command computes the instantaneous acoustic intensity ( pressure * velocity) and stores vector components in arrays XAINT, YAINT and for 3D: ZAINT.