Simulation Techniques: Loudspeaker Driver Displacement Decomposition

This article by René Christensen (BSEE, MSc, PhD), offers a valuable tutorial that discusses the unique possibilities of three-dimensional analysis of loudspeaker driver displacement, using Phase Decomposition and Axial-Symmetrical Decomposition techniques. The article demonstrates how a total displacement on a cone surface can be decomposed into different components directly in COMSOL Multiphysics, and how this can reveal some of the underlying mechanisms of the driver.

Multiple perspectives to inspire you in the new year. A Market Update on Bone Conduction Transducers, an article on the development of the Taction Transporter haptic transducer, and a valuable article by Hans W. Gierlich explaining an effective approach for testing structure-borne sound applied to in-ear developments. Andrew Bellavia writes about why the FDA’s OTC hearing aid rule could be quickly obsolete, Adam Levenson introduces the new Audio Foundry automotive audio development platform, and René Christensen makes its debut with audioXpress, writing about simulation techniques