Patent ID: 11601754

Abstract:
An audio system for a vehicle may include: an audio signal processing system arranged to process a plurality of audio channels and generate a principal signal and an accommodating signal for each of the plurality of audio channels; an array of loudspeakers including at least two pairs of loudspeakers, each of the at least two pairs of loudspeakers including a front loudspeaker and a rear loudspeaker; wherein the loudspeakers of the array are positioned such that a first line connecting acoustic centers of a front loudspeaker and a rear loudspeaker of a first pair of loudspeakers is angularly displaced relative to a second line connecting acoustic centers of a front loudspeaker and a rear loudspeaker of a second pair of loudspeakers; and wherein the audio signal processing system is arranged to provide a principal signal of a first audio channel among the plurality of audio channels to the front loudspeaker of the first pair of loudspeakers, provide an accommodating signal of the first audio channel to the rear loudspeaker of the first pair of loudspeakers, provide a principal signal of a second audio channel among the plurality of audio channels to the front loudspeaker of the second pair of loudspeakers, and provide an accommodating signal of the second audio channel to the rear loudspeaker of the second pair of loudspeakers, to generate a directional radiation pattern from the array of loudspeakers, wherein the directional radiation pattern includes a forward component and a rearward component associated with the first pair of loudspeakers and a forward component and a rearward component associated with the second pair of loudspeakers, and wherein the forward component associated with the first pair of loudspeakers and the forward component associated with the second pair of loudspeakers are directed toward at least one reflecting surface of the vehicle.