(acoustics) the pressure exerted on a surface normal to the direction of propagation of a sound wave

(acoustics) the pressure exerted on a surface normal to the direction of propagation of a sound wave

(acoustics) the pressure exerted on a surface normal to the direction of propagation of a sound wave

(acoustics) the pressure exerted on a surface normal to the direction of propagation of a sound wave

(acoustics) the pressure exerted on a surface normal to the direction of propagation of a sound wave

(acoustics) the pressure exerted on a surface normal to the direction of propagation of a sound wave

(acoustics) the pressure exerted on a surface normal to the direction of propagation of a sound wave

(acoustics) the pressure exerted on a surface normal to the direction of propagation of a sound wave

(acoustics) the pressure exerted on a surface normal to the direction of propagation of a sound wave

(acoustics) the pressure exerted on a surface normal to the direction of propagation of a sound wave