If you've ever seen a Jewish man with strings hanging out of his clothing, this is probably what you were seeing. There is no particular religious significance to the tallit (shawl) itself, other than the fact that it holds the tzitzit (fringes) on its corners.
Sound pressure or acoustic pressure is the local pressure deviation from the ambient (average, or equilibrium) atmospheric pressure, caused by a sound wave. In air, sound pressure can be measured using a microphone, and in water with a hydrophone. The SI unit of sound pressure is the pascal (Pa).
The amplitude of the sound pressure means the peak value. The ear is a sound pressure receptor , or a sound pressure sensor , i.e. the. ear-drums are moved by the sound pressure, a sound field quantity. It is not an. energy receiver. When listening, forget the sound intensity as energy quantity.