What is acoustic impedance and how is it related to intensity?
Acoustic impedance Z is the ratio of the acoustic pressure p, measured in Pascals, to the acoustic volume flow, measured in cubic metres per second. Specific acoustic impedance z is the ratio of the acoustic pressure p, measured in Pascals, to the acoustic velocity, measured in metres per second. We introduce and explain these in two separate pages. Acoustic impedance, intensity and power is an introduction in terms of physics and the wave equation.