Patent ID: 6581719
Filing Date: 2003-06-24
Classification: G10K,H04R

Abstract:
A sound chamber having a substantially rectangular shaped inlet aperture, a substantially rectangular shaped outlet aperture and an axis extending from a center of the inlet aperture to a center of the outlet aperture, for the purpose receiving a sound wave in said inlet aperture from a sound source and transmitting the sound wave from said outlet aperture, the sound wave having a wavefront which is curved in a longer dimension of said inlet aperture, said sound chamber defining interiorly a predefined acoustic conduit including a plurality of acoustic paths connecting said inlet aperture to said outlet aperture, wherein said plurality of acoustic paths are not all equal in length but are so defined that the sound wavefront transmitted from said outlet aperture has a different degree of curvature in the longer dimension of said outlet aperture than a curvature in said longer dimension of the wavefront received at said inlet aperture.