Author(s)

V. Pulkki & T Lokki

Abstract

Visualizing diffraction of a loudspeaker enclosure ~ . ~ u l k l u ' & ~ . ~ o k k i ~ Laboratory of Acoustics and Audio Signal Processing telecommunication^ Software and Multimedia Laboratory Helsinki University of Technology, Espoo, Finland Abstract With the image-source method the room acoustics can be visualized by plotting image sources around the listener, which yields an intuitive illustration of acoustics. Lately, the image-source method has been extended to also include edge diffraction. In this paper, a visualization method for diffraction phenomenon is presented, which illustrates how diffraction behaves in different conditions. As an example, first- and second-order diffraction in loudspeaker enclosure is visualized. 1 Introduction Visualization of sound field is useful in design of acoustics and in educational purposes. For visualization, the sound field has to be either measured or modeled. While measurement of 3D sound fields is in many cases impracticable, modeling of an acous

Keywords