impulsive sound equation

impulsive sound equation

[im′pəl·siv ′sau̇nd i‚kwā·zhən]
(acoustics)
An equation which states that the total sound energy produced by a short burst of sound in a room is an exponentially decreasing function of time, whose decay constant depends on the speed of sound, the sound absorption coefficient, and the volume and surface area of the room.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.