Lobach's law

Lobach’s Law suggests that the intensity of a sound is related to the difference in pressure between the compressed and rarefied parts of a sound wave. Essentially, louder sounds involve greater pressure variations in the air or other medium. This means that as the pressure difference increases, the sound’s intensity and perceived loudness also increase. It highlights the direct connection between the physical pressure fluctuations in a wave and how loud the sound appears to our ears.