How do you measure the volume of a sound accurately if the perceived volume changes with distance?

Question

I understand that the closer to the sound source, the louder the sound. But is there a universal distance sound is measured from the sound source to get consistent measurements?

Thanks!

In: Physics

Answer 1

As long as you know the air density, and the distance away the object is, you can figure out how much Sound Pressure has dropped by the time it gets to your current meter.