Description: Integral of the product of the sound pressure p and the component of the particle velocity un, which is perpendicular to a surface at a point of this surface, over this surface; Name: Acoustic power
Description: determined through a surface, product of the sound pressure, p, and the component of the particle velocity, un, at a point on the surface in the direction normal to the surface, integrated over that surface; Name: sound power
Description: Value indicated by the manufacturer of the device which arises from measurements which have been found out under fixed conditions and rules for the tension which can be laid out to electrical operating supplies under consideration of the use conditions and on which the different product-specific testings refer; Name: Rated input voltage