Patent ID: 6633648
Filing Date: 2003-10-14
Classification: H04R,H04S

Abstract:
An audio reproduction system for creating an audio presentation with enlarged sweet spot, comprising:source means for providing an audio program of at least one channel of audio signal; a first loudspeaker system comprising an audio emitter for a generally higher frequency band of the audio program and an audio emitter for a generally lower frequency band of the audio program; a second loudspeaker system with an audio emitter for a generally higher frequency band of the audio program and an audio emitter for a generally lower frequency band of the audio program, and wherein the audio emitters of the first and second loudspeaker systems are arranged in a substantially horizontal array, and where the higher-frequency audio emitters of the first and second loudspeaker systems are closer to one another than the lower-frequency audio emitters of the first and second loudspeaker systems; imaging means for modifying audio spatial characteristics of the emitters of the first and second loudspeaker systems based upon respective transfer functions of the audio emitters; and crossover network means for separating and routing the spatially modified audio program to the various audio emitters of the first and second loudspeaker systems, wherein the imaging means is adapted for the spatial geometry of the first and second loudspeaker systems and the crossover network means associated therewith to create the enlarged sweet spot.