Patent Review: Acoustical Window Assembly for Vehicle and Home Theater Solution

James Croft reviews two patents for a new type of subwoofer architecture. The first is intended for use in an automobile and the second, for use in a domestic listening room. The first patent relates to an “Acoustical Window Assembly for Vehicle,” while the second describes a home-theater solution using essentially the same concept, adapted to one or more home windows. Both patents were awarded to Magna International, Inc. This article was originally published in Voice Coil, October 2015.

This month’s edition features an overview of Acoustic Simulation of Audio Devices with Actran Software, Mike Klasco’s overview of Integrated Amplified Speaker Solutions and detailed Directory of vendors. James Croft reviews two related patents for a new type of subwoofer architecture. Test Bench examines a new 18” woofer from Precision Devices and the recently released 8” coax woofer/compression driver from Celestion.

We’ve worked hard on this month’s issue of audioXpress and we are certain you will enjoy what we have selected for you! Read about how Brüel & Kjær used COMSOL’s simulation software to improve their industrial and measurement-grade microphones. Read reviews of the Audiomatica CLIO Pocket and IsoAcoustics’ Aperta Speaker Stands and learn about the benefits of 48 volts for autosound.